Our columnist breaks down why Leo’s original designs are still the benchmark for pristine guitar sounds.
It’s time to discuss a favorite topic of mine: the Fender clean tone. I’m a big fan of pristine guitar tones, and I think it might be the reason why I got into Fender amps in the first place. So, in this column, I’ll break down and explain what creates the beautiful, crystalline tone in vintage Fender amps, and share which amps are best for capturing these huge, squeaky-clean sounds.
Among my music friends, I am known for advocating these tones. Sometimes my bandmates want more distortion and growl from my guitar, but I proudly resist and argue that the music we create profits from a clearer guitar tone. It’s not about volume and distortion; it’s about melody, rhythm, and dynamics. Personally, I find it more interesting to hear guitarists with clarity, where I can identify single notes and what they are doing. It’s much harder to play clean, and the transparency forces us guitarists to consider more carefully what we play.
Tone and music are definitely matters of personal taste. What someone finds naked and thin, others will find clear and articulate. Let me therefore explain my definition of “clean tone.” A good, clean tone means clarity and little distortion. Clarity is achieved when there is a certain balance between the frequencies. There must be enough sparkle and brightness together with a firm low end. In my definition, you can also have some distortion as long as you have enough clarity to hear single strings in a chord, which some define as a “bell-like” tone. Muddy or overwhelming mid and bass frequencies will spoil this clarity. I like punchy guitar sounds, and for that we need muscle and power from large power-amp sections and larger speaker cabinets. But again, there must be enough sparkle and treble attack to balance that big low end.
The black- and silver-panel Fender amps excel in this area. Fender designed these amps specifically to support the music style of the 1950s and ’60s: Whether it was folk, country, rock, or surf, the guitars were supposed to be bright and clean. The amps therefore had to produce a sound that was both clean and loud, often without PA systems.
There are several reasons why these Fender amps sound the way they do. Let’s dive into the most important factors. Firstly, the tone stack and EQ section play a significant role in creating a scooped tone with few mids. Most AB763 Fender amps have 250 pF, 0.1 μF, and 0.022 μF caps (treble, mid, and bass, respectively), controlled by 250k bass and treble pots and a 10k mid pot (or a fixed 6.8k resistor in amps without the mid pot). If you alter the value of the mid resistor or insert a larger coupling cap after the preamp section, you will get more, and earlier, breakup. If we look at the preamp sections of the AB763 amps, there is no tube gain stage, whose purpose is to introduce distortion. There are only the necessary tube gain stages to mix and lead the signal to the power amp section.
“Fender designed these amps specifically to support the music style of the 1950 and ’60s: The guitars were supposed to be bright and clean.”
The power amp section is equally important. The AB763-style amps have dual power tubes in a Class AB push-pull configuration which has significant clean headroom—more than single-end Class A amps. The fixed-bias design provides more headroom than cathode bias, which creates sag and less headroom. The efficient long-tail phase inverter and the negative feedback loop are also used to minimize clipping. Finally, using American-style speakers in the open-back cabinet design of the black- and silver-panel combo amps will enhance bright frequencies and tame the mids and low end. All these details point to one conclusion: Fender designed the AB763 amps to achieve the cleanest possible tone.
For me, the cleans of a Super Reverb are especially fantastic. The four, lightly driven 10″ speakers produce a scooped sound with great dynamics and touch sensitivity. The full set of EQ controls, robust power amp, and large transformers work together to give you both sparkle and a firm low end, even at high volumes. The Pro Reverb and Princeton Reverb, however, will struggle to stay clean when pushed. The relatively small-output transformers are a bottleneck in these amps, and they both lack the important mid control to tame the bass and mids. The Pro Reverb’s boomy 2x12 cabinet gives a flabby bass response, and the Princeton Reverb has a cheaper and inefficient phase inverter. This means that these amps can play clean only at lower volumes. If you read my previous articles on these amps, you will find easy instructions for how to improve the clean headroom, if that’s what you want.
If it’s natural distortion you’re after, the best black- or silver-panel Fender amp is the AB165 Bassman. But that’s a different story we’ll come back to later.
Throughout his over-30-year career, Keith Urban has been known more as a songwriter than a guitarist. Here, he shares about his new release, High, and sheds light on all that went into the path that led him to becoming one of today’s most celebrated country artists.
There are superstars of country and rock, chart-toppers, and guitar heroes. Then there’s Keith Urban. His two dozen No. 1 singles and boatloads of awards may not eclipse George Strait or Garth Brooks, but he’s steadily transcending the notion of what it means to be a country star.
He’s in the Songwriters Hall of Fame. He’s won 13 Country Music Association Awards, nine CMT video awards, eight ARIA (Australian Recording Industry Association) Awards, four American Music Awards, and racked up BMI Country Awards for 25 different singles.
He’s been a judge on American Idol and The Voice. In conjunction with Yamaha, he has his own brand of affordably priced Urban guitars and amps, and he has posted beginner guitar lessons on YouTube. His 2014 Academy of Country Music Award-winning video for “Highways Don’t Care” featured Tim McGraw and Keith’s former opening act, Taylor Swift. Add his marriage to fellow Aussie, the actress Nicole Kidman, and he’s seen enough red carpet to cover a football field.
Significantly, his four Grammys were all for Country Male Vocal Performance. A constant refrain among newcomers is, “and he’s a really good guitar player,” as if by surprise or an afterthought. Especially onstage, his chops are in full force. There are country elements, to be sure, but rock, blues, and pop influences like Mark Knopfler are front and center.
Unafraid to push the envelope, 2020’s The Speed of Now Part 1 mixed drum machines, processed vocals, and a duet with Pink with his “ganjo”—an instrument constructed of a 6-string guitar neck on a banjo body—and even a didgeridoo. It, too, shot to No. 1 on the Billboard Country chart and climbed to No. 7 on the pop chart.
His new release, High, is more down-to-earth, but is not without a few wrinkles. He employs an EBow on “Messed Up As Me” and, on “Wildfire,” makes use of a sequencerreminiscent of ZZ Top’s “Legs.” Background vocals in “Straight Lines” imitate a horn section, and this time out he duets on “Go Home W U” with rising country star Lainey Wilson. The video for “Heart Like a Hometown” is full of home movies and family photos of a young Urban dwarfed by even a 3/4-size Suzuki nylon-string.
Born Keith Urbahn (his surname’s original spelling) in New Zealand, his family moved to Queensland, Australia, when he was 2. He took up guitar at 6, two years after receiving his beloved ukulele. He released his self-titled debut album in 1991 for the Australian-only market, and moved to Nashville two years later. It wasn’t until ’97 that he put out a group effort, fronting the Ranch, and another self-titled album marked his American debut as a leader, in ’99. It eventually went platinum—a pattern that’s become almost routine.
The 57-year-old’s celebrity and wealth were hard-earned and certainly a far cry from his humble beginnings. “Australia is a very working-class country, certainly when I was growing up, and I definitely come from working-class parents,” he details. “My dad loved all the American country artists, like Johnny Cash, Haggard, Waylon. He didn’t play professionally, but before he got married he played drums in a band, and my grandfather and uncles all played instruments.
One of Urban’s biggest influences as a young guitar player was Mark Knopfler, but he was also mesmerized by lesser-known session musicians such as Albert Lee, Ian Bairnson, Reggie Young, and Ray Flacke. Here, he’s playing a 1950 Broadcaster once owned by Waylon Jennings that was a gift from Nicole Kidman, his wife.
“For me, it was a mix of that and Top 40 radio, which at the time was much more diverse than it is now. You would just hear way more genres, and Australia itself had its own, what they call Aussie pub rock—very blue-collar, hard-driving music for the testosterone-fueled teenager. Grimy, sweaty, kind of raw themes.”
A memorable event happened when he was 7. “My dad got tickets for the whole family to see Johnny Cash. He even bought us little Western shirts and bolo ties. It was amazing.”
But the ukulele he was gifted a few years earlier, at the age of 4, became a constant companion. “I think to some degree it was my version of the stuffed animal, something that was mine, and I felt safe with it. My dad said I would strum it in time to all the songs on the radio, and he told my mom, ‘He’s got rhythm. I wonder what a good age is for him to learn chords.’ My mom and dad ran a little corner store, and a lady named Sue McCarthy asked if she could put an ad in the window offering guitar lessons. They said, ‘If you teach our kid for free, we’ll put your ad in the window.’”
Yet, guitar didn’t come without problems. “With the guitar, my fingers hurt like hell,” he laughs, “and I started conveniently leaving the house whenever the guitar teacher would show up. Typical kid. I don’t wanna learn, I just wanna be able to do it. It didn’t feel like any fun. My dad called me in and went, ‘What the hell? The teacher comes here for lessons. What’s the problem?’ I said I didn’t want to do it anymore. He just said, ‘Okay, then don’t do it.’ Kind of reverse psychology, right? So I just stayed with it and persevered. Once I learned a few chords, it was the same feeling when any of us learn how to be moving on a bike with two wheels and nobody holding us up. That’s what those first chords felt like in my hands.”
Keith Urban's Gear
Urban has 13 Country Music Association Awards, nine CMT video awards, eight ARIA Awards, and four Grammys to his name—the last of which are all for Best Country Male Vocal Performance.
Guitars
For touring:
- Maton Diesel Special
- Maton EBG808TE Tommy Emmanuel Signature
- 1957 Gibson Les Paul Junior, TV yellow
- 1959 Gibson ES-345 (with Varitone turned into a master volume)
- Fender 40th Anniversary Tele, “Clarence”
- Two first-generation Fender Eric Clapton Stratocasters (One is black with DiMarzio Area ’67 pickups, standard tuning. The other is pewter gray, loaded with Fralin “real ’54” pickups, tuned down a half-step.)
- John Bolin Telecaster (has a Babicz bridge with a single humbucker and a single volume control. Standard tuning.)
- PRS Paul’s Guitar (with two of their narrowfield humbuckers. Standard tuning.)
- Yamaha Keith Urban Acoustic Guitar (with EMG ACS soundhole pickups)
- Deering “ganjo”
Amps
- Mid-’60s black-panel Fender Showman (modified by Chris Miller, with oversized transformers to power 6550 tubes; 130 watts)
- 100-watt Dumble Overdrive Special (built with reverb included)
- Two Pacific Woodworks 1x12 ported cabinets (Both are loaded with EV BlackLabel Zakk Wylde signature speakers and can handle 300 watts each.)
Effects
- Two Boss SD-1W Waza Craft Super Overdrives with different settings
- Mr. Black SuperMoon Chrome
- FXengineering RAF Mirage Compressor
- Ibanez TS9 with Tamura Mod
- Boss BD-2 Blues Driver
- J. Rockett Audio .45 Caliber Overdrive
- Pro Co RAT 2
- Radial Engineering JX44 (for guitar distribution)
- Fractal Audio Axe-Fx XL+ (for acoustic guitars)
- Two Fractal Audio Axe-Fx III (one for electric guitar, one for bass)
- Bricasti Design Model 7 Stereo Reverb Processor
- RJM Effect Gizmo (for pedal loops)
(Note: All delays, reverb, chorus, etc. is done post amp. The signal is captured with microphones first then processed by Axe-Fx and other gear.)
- Shure Axient Digital Wireless Microphone System
Strings & Picks
- D’Addario NYXL (.011–.049; electric)
- D’Addario EJ16 (.012–.053; acoustics)
- D’Addario EJ16, for ganjo (.012–.053; much thicker than a typical banjo strings)
- D’Addario 1.0 mm signature picks
He vividly remembers the first song he was able to play after “corny songs like ‘Mama’s little baby loves shortnin’ bread.’” He recalls, “There was a song I loved by the Stylistics, ‘You Make Me Feel Brand New.’ My guitar teacher brought in the sheet music, so not only did I have the words, but above them were the chords. I strummed the first chord, and went, [sings E to Am] ‘My love,’ and then minor, ‘I'll never find the words, my,’ back to the original chord, ‘love.’ Even now, I get covered in chills thinking what it felt like to sing and put that chord sequence together.”
After the nylon-string Suzuki, he got his first electric at 9. “It was an Ibanez copy of a Telecaster Custom—the classic dark walnut with the mother-of-pearl pickguard. My first Fender was a Stratocaster. I wanted one so badly. I’d just discovered Mark Knopfler, and I only wanted a red Strat, because that’s what Knopfler had. And he had a red Strat because of Hank Marvin. All roads lead to Hank!”
He clarifies, “Remember a short-lived run of guitar that Fender did around 1980–’81, simply called ‘the Strat’? I got talked into buying one of those, and the thing weighed a ton. Ridiculously heavy. But I was just smitten when it arrived. ‘Sultans of Swing’ was the first thing I played on it. ‘Oh my god! I sound a bit like Mark.’”
“Messed Up As Me” has some licks reminiscent of Knopfler. “I think he influenced a huge amount of my fingerpicking and melodic choices. I devoured those records more than any other guitar player. ‘Tunnel of Love,’ ‘Love over Gold,’ ‘Telegraph Road,’ the first Dire Straits album, and Communique. I was spellbound by Mark’s touch, tone, and melodic choice every time.”
Other influences are more obscure. “There were lots of session guitar players whose solos I was loving, but had no clue who they were,” he explains. “A good example was Ian Bairnson in the Scottish band Pilot and the Alan Parsons Project. It was only in the last handful of years that I stumbled upon him and did a deep dive, and realized he played the solo on ‘Wuthering Heights’ by Kate Bush, ‘Eye in the Sky’ by Alan Parsons, ‘It’s Magic’ and ‘January’ by Pilot—all these songs that spoke to me growing up. I also feel like a lot of local-band guitar players are inspirations—they certainly were to me. They didn’t have a name, the band wasn’t famous, but when you’re 12 or 13, watching Barry Clough and guys in cover bands, it’s, ‘Man, I wish I could play like that.’”
On High, Urban keeps things song-oriented, playing short and economical solos.
In terms of country guitarists, he nods, “Again, a lot of session players whose names I didn’t know, like Reggie Young. The first names I think would be Albert Lee and Ray Flacke, whose chicken pickin’ stuff on the Ricky Skaggs records became a big influence. ‘How is he doing that?’”
Flacke played a role in a humorous juxtaposition. “I camped out to see Iron Maiden,” Urban recounts. “They’d just put out Number of the Beast, and I was a big fan. I was 15, so my hormones were raging. I’d been playing country since I was 6, 7, 8 years old. But this new heavy metal thing is totally speaking to me. So I joined a heavy metal band called Fractured Mirror, just as their guitar player. At the same time, I also discovered Ricky Skaggs and Highways and Heartaches. What is this chicken pickin’ thing? One night I was in the metal band, doing a Judas Priest song or Saxon. They threw me a solo, and through my red Strat, plugged into a Marshall stack that belonged to the lead singer, I shredded this high-distortion, chicken pickin’ solo. The lead singer looked at me like, ‘What the fuck are you doing?’ I got fired from the band.”
Although at 15 he “floated around different kinds of music and bands,” when he was 21 he saw John Mellencamp. “He’d just put out Lonesome Jubilee. I’d been in bands covering ‘Hurts So Good,' ‘Jack & Diane,’ and all the early shit. This record had fiddle and mandolin and acoustic guitars, wall of electrics, drums—the most amazing fusion of things. I saw that concert, and this epiphany happened so profoundly. I looked at the stage and thought, ‘Whoa! I get it. You take all your influences and make your own thing. That’s what John did. I’m not gonna think about genre; I’m gonna take all the things I love and find my way.’
“Of course, getting to Nashville with that recipe wasn’t going to fly in 1993,” he laughs. “Took me another seven-plus years to really start getting some traction in that town.”
Urban’s main amp today is a Dumble Overdrive Reverb, which used to belong to John Mayer. He also owns a bass amp that Alexander Dumble built for himself.
Photo by Jim Summaria
When it comes to “crossover” in country music, one thinks of Glen Campbell, Kenny Rogers, Garth Brooks, and Dolly Parton’s more commercial singles like “Two Doors Down.” Regarding the often polarizing subject and, indeed, what constitutes country music, it’s obvious that Urban has thought a lot—and probably been asked a lot—about the syndrome. The Speed of Now Part 1 blurs so many lines, it makes Shania Twain sound like Mother Maybelle Carter. Well, almost.
“I can’t speak for any other artists, but to me, it’s always organic,” he begins. “Anybody that’s ever seen me play live would notice that I cover a huge stylistic field of music, incorporating my influences, from country, Top 40, rock, pop, soft rock, bluegrass, real country. That’s how you get songs like ‘Kiss a Girl’—maybe more ’70s influence than anything else.”
“I think [Mark Knopfler] influenced a huge amount of my fingerpicking and melodic choices. I devoured those records more than any other guitar player.”
Citing ’50s producers Chet Atkins and Owen Bradley, who moved the genre from hillbilly to the more sophisticated countrypolitan, Keith argues, “In the history of country music, this is exactly the same as it has always been. Patsy Cline doing ‘Walking After Midnight’ or ‘Crazy’; it ain’t Bob Wills. It ain’t Hank Williams. It’s a new sound, drawing on pop elements. That’s the 1950s, and it has never changed. I’ve always seen country like a lung, that expands outwards because it embraces new sounds, new artists, new fusions, to find a bigger audience. Then it feels, ‘We’ve lost our way. Holy crap, I don’t even know who we are,’ and it shrinks back down again. Because a purist in the traditional sense comes along, whether it be Ricky Skaggs or Randy Travis. The only thing that I think has changed is there’s portals now for everything, which didn’t used to exist. There isn’t one central control area that would yell at everybody, ‘You’ve got to bring it back to the center.’ I don’t know that we have that center anymore.”
Stating his position regarding the current crop of talent, he reflects, “To someone who says, ‘That’s not country music,’ I always go, “‘It’s not your country music; it’s somebody else’s country music.’ I don’t believe anybody has a right to say something’s not anything. It’s been amazing watching this generation actually say, ‘Can we get back to a bit of purity? Can we get real guitars and real storytelling?’ So you’ve seen the explosion of Zach Bryan and Tyler Childers who are way purer than the previous generation of country music.”
Seen performing here in 2003, Urban is celebrated mostly for his songwriting, but is also an excellent guitarist.
Photo by Steve Trager/Frank White Photo Agency
As for the actual recording process, he notes, “This always shocks people, but ‘Chattahoochee’ by Alan Jackson is all drum machine. I write songs on acoustic guitar and drum machine, or drum machine and banjo. Of course, you go into the studio and replace that with a drummer. But my very first official single, in 1999, was ‘It’s a Love Thing,’ and it literally opens with a drum loop and an acoustic guitar riff. Then the drummer comes in. But the loop never goes away, and you hear it crystal clear. I haven’t changed much about that approach.”
On the road, Urban utilizes different electrics “almost always because of different pickups—single-coil, humbucker, P-90. And then one that’s tuned down a half-step for a few songs in half-keys. Tele, Strat, Les Paul, a couple of others for color. I’ve got a John Bolin guitar that I love—the feel of it. It’s a Tele design with just one PAF, one volume knob, no tone control. It’s very light, beautifully balanced—every string, every fret, all the way up the neck. It doesn’t have a lot of tonal character of its own, so it lets my fingers do the coloring. You can feel the fingerprints of Billy Gibbons on this guitar. It’s very Billy.”
“I looked at the stage and thought, ‘Whoa! I get it. You take all your influences and make your own thing. I’m gonna take all the things I love and find my way.’”
Addressing his role as the collector, “or acquirer,” as he says, some pieces have quite a history. “I haven’t gone out specifically thinking, ‘I’m missing this from the collection.’ I feel really lucky to have a couple of very special guitars. I got Waylon Jennings’ guitar in an auction. It was one he had all through the ’70s, wrapped in the leather and the whole thing. In the ’80s, he gave it to Reggie Young, who owned it for 25 years or so and eventually put it up for auction. My wife wanted to give it to me for my birthday. I was trying to bid on it, and she made sure that I couldn’t get registered! When it arrived, I discovered it’s a 1950 Broadcaster—which is insane. I had no idea. I just wanted it because I’m a massive Waylon fan, and I couldn’t bear the thought of that guitar disappearing overseas under somebody’s bed, when it should be played.
“I also have a 1951 Nocaster, which used to belong to Tom Keifer in Cinderella. It’s the best Telecaster I’ve ever played, hands down. It has the loudest, most ferocious pickup, and the wood is amazing.”
YouTube
Urban plays a Gibson SG here at the 2023 CMT Music Awards. Wait until the end to see him show off his shred abilities.
Other favorites include “a first-year Strat, ’54, that I love, and a ’58 goldtop. I also own a ’58 ’burst, but prefer the goldtop; it’s just a bit more spanky and lively. I feel abundantly blessed with the guitars I’ve been able to own and play. And I think every guitar should be played, literally. There’s no guitar that’s too precious to be played.”
Speaking of precious, there are also a few Dumble amps that elicit “oohs” and “aahs.” “Around 2008, John Mayer had a few of them, and he wanted to part with this particular Overdrive Special head. When he told me the price, I said, ‘That sounds ludicrous.’ He said, ‘How much is your most expensive guitar?’ It was three times the value of the amp. He said, ‘So that’s one guitar. What amp are you plugging all these expensive guitars into?’ I was like, ‘Sold. I guess when you look at it that way.’ It’s just glorious. It actually highlighted some limitations in some guitars I never noticed before.”
“It’s just glorious. It actually highlighted some limitations in some guitars I never noticed before.”
Keith also developed a relationship with the late Alexander Dumble. “We emailed back and forth, a lot of just life stuff and the beautifully eccentric stuff he was known for. His vocabulary was as interesting as his tubes and harmonic understanding. My one regret is that he invited me out to the ranch many times, and I was never able to go. Right now, my main amp is an Overdrive Reverb that also used to belong to John when he was doing the John Mayer Trio. I got it years later. And I have an Odyssey, which was Alexander’s personal bass amp that he built for himself. I sent all the details to him, and he said, ‘Yeah, that’s my amp.’”
The gearhead in Keith doesn’t even mind minutiae like picks and strings. “I’ve never held picks with the pointy bit hitting the string. I have custom picks that D’Addario makes for me. They have little grippy ridges like on Dunlops and Hercos, but I have that section just placed in one corner. I can use a little bit of it on the string, or I can flip it over. During the pandemic, I decided to go down a couple of string gauges. I was getting comfortable on .009s, and I thought, ‘Great. I’ve lightened up my playing.’ Then the very first gig, I was bending the crap out of them. So I went to .010s, except for a couple of guitars that are .011s.”
As with his best albums, High is song-oriented; thus, solos are short and economical. “Growing up, I listened to songs where the guitar was just in support of that song,” he reasons. “If the song needs a two-bar break, and then you want to hear the next vocal section, that’s what it needs. If it sounds like it needs a longer guitar section, then that’s what it needs. There’s even a track called ‘Love Is Hard’ that doesn’t have any solo. It’s the first thing I’ve ever recorded in my life where I literally don’t play one instrument. Eren Cannata co-wrote it [with Shane McAnally and Justin Tranter], and I really loved the demo with him playing all the instruments. I loved it so much I just went with his acoustic guitar. I’m that much in service of the song.”
Our columnist is back to balance the force with a look at the top qualities of old-school Fullerton noise-makers.
Last year, I wrote a column listing the top 10 annoying things about vintage Fender amps. Now, I seek to rebalance the equation, and will share my list of reasons to love them.
There are countless reasons why simple, vintage Fender amps are still the tool of choice for many working musicians, both onstage and in the studio. I suppose my list is also colored by the fact that I am an electrical engineer, just as Leo Fender was. I have traded and serviced them for almost three decades. As usual, I will mostly refer to the black-panel and silver-panel era of amps from the 1960s and ’70s.
1. Circuit standardization
The amp techs among us may have noticed how similar the electrical circuits are in the various Fender models, especially the popular black-panel Deluxe, Vibrolux, Pro, Vibroverb, Super, Twin, and Showman. Many of us use the nickname “AB763” amps because they are based on the same electrical circuit design, and some are almost identical on the inside. Yes, there are some differences, but apart from the power levels and size, they follow the exact same recipe with the tube layout, preamp section with tone stack, the long-tail phase inverter, the class-AB push-pull power tube design, fixed bias, negative feedback loop, and so on.
So, the tonal differences between the black- and silver-panel-era amps are explained by cabinet size, speaker configurations, speaker type, and power levels. Once you learn how to work on one model, you can work on them all.
2. Circuit simplicity
The first time I opened a Fender amp and inspected its innards was in 1998 when I got my first vintage one, a 1965 pre-CBS Super Reverb. I was surprised by how simple and organized the circuit was. The few components were laid out in patterns and functional sections, and the wires were cut in perfect lengths and bent nicely, tying everything together in a way that was easy to understand when I followed the circuit layout diagram. Simplicity means fewer things that can go wrong. These qualities also make maintenance easier for amateurs and enthusiasts.
3. Low-cost physical construction
Back in the day, Fender was concerned about cost and weight, and as a result, there was no high-end selection of materials or advanced mechanical features. If you need to repair or rebuild something, you don’t have to rebuild with absolute vintage correctness to obtain the original Fender tone. If, for example, an MDF baffle board is damaged, which tends to happen to amps with multiple heavy speakers, I always use thicker pine plywood when cutting out a new board. The tone remains pretty much the same, while robustness is drastically improved. This also goes for cabinet pieces, back plates, screws, and nuts. Do what Fender did, and use what you have available.
4. Tube mods
As a player, I like simple tube-swap mods, and as an engineer, I am impressed at how vintage Fender amps handle different tubes, or even allow you to pull some tubes out. Did you know that you can remove V2, V3, V4, and V5 in an AB763 amp, and the normal channel will still work?
My favorite tube swaps are a 12AX7 in the phase-inverter position for less headroom; a 12AU7 as a reverb driver for better reverb control; 6L6s in place of 6V6s in the Deluxe Reverb for cleaner headroom; and a single 6L6 in the Princeton Reverb for less headroom. There are plenty other tube swaps that you can learn about on my website, fenderguru.com, or in previous articles here at Premier Guitar. You risk malfunction and burned tubes and components if you insert the wrong tubes, so be careful and trust only valid sources.
5. The big lineup
In my list of problems with Fender amps, I pointed out a few amps that I would have recommended that Leo Fender cut out to reduce production complexity and cut costs. However, I do dig the big lineup of different amp models, from small practice amps to huge stage amps. You can pick the exact tool according to your taste and needs, and as mentioned earlier, all of them share the characteristic Fender clean tone—it’s just that some are much louder than others.
6. The clean tone
For me, the clean tone of an amp is everything. This is my number-one reason why I love the old-school Fender amps. They were designed as clean, natural tone platforms, for the simple purpose of amplifying the sound of your guitar, bass, or keyboard.
But a proper analysis of Fender’s clean tone requires a column of its own, so stay tuned for the next Silver and Black!
With a few simple tweaks, you can get any classic Fender amp to cooperate with whatever guitar you like.
I find endless fascination in experimenting with different combinations of guitars and amps. Many of you may also have made surprising discoveries with certain amps and guitars as “killer” combinations. In this column, we’ll delve into the reasons behind these magical pairings, and discuss how you can modify your amp to achieve the elusive tone that lingers in your mind day and night. While having a variety of amps at your disposal is one solution, it’s undeniably an expensive and impractical one. Fortunately, knowledge is a more accessible asset. In my previous column, I explored speaker cabinets that can expand the versatility of your amp. I recommend giving it a read, as it closely ties into this topic.
Let’s begin with the Les Paul. Its mahogany body and neck contribute to a warm tone with exceptional sustain and attack, attributes further enhanced by the fixed bridge and solidbody construction. While most people associate the Les Paul with Marshall amps for classic rock tones, I find its clean tone more intriguing and often overlooked. Recently, I have discovered several live performances by American blues guitarist Mike Welch on YouTube, showcasing a fantastic Les Paul tone: bright and clean, with crucial attack that heightens dynamics and “fingerspitzengefühl”—in short, intuition and sensitivity.
Here’s my approach to achieving a fabulous clean Les Paul tone with classic Fender amps. I’ve found that amps with all EQ controls (bass, mids, treble, and a bright switch) work best for me. This allows me to rein in the bass and add top-end sparkle. For amps lacking a mid control, such as the Princeton, Deluxe, and Pro, I recommend installing a 25k mid pot in the amp’s ground-lift spot. This modification widens the tonal range from extremely icy and scooped to full British warmth. The Les Paul’s humbuckers, with their significant bass and mids, pair well with larger Fender amps that offer clean headroom and a firm low end. Personally, a Twin Reverb or Super Reverb loaded with firm, American-style speakers is my preferred mate for a Les Paul, providing enough attack to prevent muddiness in the tone.
“Hollowbodies pose a challenge, as they can generate unpleasant, squealing feedback when too close to a loud and bass-y amp.”
Now, let’s shift our focus to Gibson’s semi-hollow and hollowbody ES guitars. These guitars exhibit a bit less attack and a more vibrant, acoustic flavor. The semi-hollow ES-335 pairs well with most Fender amps, given there’s enough clarity. However, hollowbodies pose a challenge, as they can generate unpleasant, squealing feedback when too close to a loud and bass-y amp. To counter this, I prefer smaller amps for smaller venues, such as the vibrato channel of the Deluxe Reverb, thanks to its bright cap. The Princeton Reverb and the Deluxe’s left, normal channel lack the sparkle and clarity I prefer with the airy Gibson ES guitars. Since I installed a 100 pF bright cap in my 1966 Princeton Reverb, it has proven to be a perfect match. But newer, brighter speakers can compensate for the missing bright cap, too.
If you predominantly use humbucker guitars with older Fender amps, consider swapping to a low-gain preamp tube to expand the amp’s volume control range. The 5751 tube, with a gain factor of 70–80, makes it easier to dial in a sweet spot, providing more usable span on the volume control than the original 12AX7, with its gain factor of 100. Using the amp’s second, low-impedance input can also lower volume and gain, but keep in mind that you’ll lose a bit of treble in the process. Therefore, reducing the preamp tube gain is a better option.
In the single-coil league, the strategies for achieving a desired tone are almost the opposite of the humbucker league. Here, the focus is on taming brightness and generating enough warmth, especially with Stratocasters that have bright and low-output pickups. Thicker strings and increased pickup height contribute to warmth, but pushing the amp hard enough is equally crucial. This causes it to break up in both the power amp and preamp sections, creating rich harmonics in the upper mid and treble frequencies. These harmonics balance and smooth out the guitar’s scooped tone. With larger Fender amps, I may want to reduce clean headroom by disengaging speakers to increase speaker impedance, or by swapping to less efficient speakers. An easy tube mod involves replacing the 12AT7 phase inverter tube with a 12AX7 to decrease clean headroom in the power amp section. You can find details on these well-known mods in my past columns.
Hopefully, these examples can inspire you to discover golden tones with the amps and guitars you already have.
Wondering how to get the most out of your Fender amp? Our columnist shares his top amp-and-cab combinations to boost your tone and volume for any situation.
Let's talk about speaker cabinets. If you have read my previous columns or been to my website fenderguru.com, you’ll know how much I value knowledge about speakers. Speakers affect the tone and volume vastly in guitar amps, and an extension cabinet is a smart and cheap way to get your tone right at practice, live gigs, or in the studio. In this column I will share my favorite amp and speaker cabinet pairings. As usual, I will refer to the classic black- and silver-panel Fender amps, which many of us enjoy.
I have plenty of extension cabinets lying around at home, including many that I have built myself. I use them across all the amps I have, with both combos and piggy-backs. Some are intended for British-style cranked tones, and some American vintage-style. Some cabinets have efficient and chunky speakers that can double the punch and spread on large stages, which I use when the speakers in my combo amps are not enough. More (and louder) speakers enable me to create a representative guitar tone on stage that everyone can hear well. “Sound good, play good” is one of my philosophies. Extension cabinets can serve other purposes too, such as lowering the volume for more breakup or mixing several speakers for a more complex and rich tone. There are so many interesting tone flavors that you should experiment with.
“The impedance mismatch gives me Hendrix’s JTM45 tones at reasonable volumes.”
Here are my all-time favorite Fender amp and cabinet pairings. All speakers are 8-ohm and wired in parallel, if not explicitly mentioned otherwise.
Black-Panel/Silver-Panel Bassman and Bandmaster
These amps’ flexible 4-ohm output transformers allow many different speaker configurations. The original 2x12 cabinet is very loud and chunky. If you use a 3x10 or 2x10 open cabinet with modest, vintage-style speakers, you will sound more like a Super Reverb, Vibrolux, or tweed Bassman. The 50-watt Bassman can push a 2x15 or even a 4x12 (ideally 16 ohm, with 8 ohm as second best) if you are in a “Who’s your daddy?” mood.
My favorite cabinet with the Bassman is a 1x12 semi-closed cabinet loaded with an Eminence Reignmaker with a 9 dB built-in attenuator. The impedance mismatch gives me Hendrix’s JTM45 tones at reasonable volumes.
Champ and Blues Junior
In their combo chassis, these amps can sound small and boxy. If you use a 1x12 semi-closed cabinet and disengage the built-in speaker entirely, you can take these amps to gigs. I recommend at least a Deluxe Reverb cabinet to get enough punch and spread.
Deluxe Reverb
With the 22-watt Deluxe 1x12, you can add an additional 1x12 for more spread and punch. If you replace the amp’s 6V6 power tubes with 6L6s, you have more power—roughly 30 watts—and can add a 1x15. Always remember to adjust bias when replacing power tubes.
Princeton Reverb
The small output transformer and inefficient phase inverter circuit limits the Princeton Reverb’s dual 6V6s to only 12 watts, with a flabby, loose low end. Therefore, I find the Princeton too weak to add an extension cabinet unless you disengage the built-in 10" speaker. Then it makes sense to use a 1x12 or 1x15 semi-closed cabinet for more punch and spread. This produces a wonderful, warm tone with significant breakup at modest volumes. A cool trick is to pull both 6V6 tubes and insert a single 6L6 for class-A operation and lots of distortion. When I use the 1x12 Eminence Reignmaker-loaded cabinet mentioned earlier, I get full tube distortion at almost bedroom level.
Vibrolux Reverb and Pro Reverb
The flexible 4-ohm configuration makes these amps perfectly suited for a 1x12 or 1x15 extension, for more spread and a mix of tone flavors. If I want to go really big, I disengage the inbuilt vintage-style speakers and hook up my Bassman’s 2x12 closed cabinet. Be aware that the small output transformer of these amps will limit the low end response.
Vibroverb
The undersized power transformer limits this amp’s low-end response. I don’t fancy adding another speaker because it gets too flabby with a 100 percent impedance mismatch.
Super Reverb
I rarely use extension cabinets with the Super Reverb because it’s already loud and punchy. On the contrary, I often disengage two of the four speakers to lower the clean headroom and volume. If you need more spread and send the sound in several directions, you could easily add a 1x12 cabinet and get a balanced and reasonable distribution of the amp’s 40 watts to all five speakers.
Twin Reverb
For those crazy players who need more from an 85-watt Twin, you can add an additional 1x15, with a resulting 50 percent impedance mismatch. Adding a dual 12" or 15" cabinet won’t make it louder since the impedance mismatch increases to 100 percent, which is the maximum I recommend.