The legendary bass amp used by Geddy Lee and Glenn Hughes has been redesigned and revamped.
The new AD200 is still designed on the premise that the best tone comes from the shortest signal path from bass to speaker. Whatever type of bass, playing style, or genre of music, the AD200 faithfully retains the tone of that instrument.
The addition of a new clean switch, in combination with a powerful three-band EQ, gives AD200 players an even broader frequency spectrum to dial into their amp. In addition, a brand new output transformer, with 3 inches of laminations, harnesses double the power at 30Hz, offering better response at low frequencies. ‘It now pushes more air, flaps more trouser leg — simple as that,’ explains Orange Amps Technical Director Ade Emsley. From mellow hues to heavy, percussive growl and even slap bass, the ultimate incarnation of the AD200, has just become even more versatile.
Internal changes make the amp easier to service and maintain. Each output valve now has its own 12 turn bias pot, so unmatched valves can sit side by side. ‘Now, any tech with a multimeter can bias the amp and match the valves into the amp,’ explains Emsley. ‘So, if you’re on the road with a band, you can go swap a worn valve for a new one, dial it in and you’re good to go.’ Whilst the four KT88 output valves push 200 Watts of power, the amp will run equally as well on 6550s or a combination of the two.
‘It’s a big improvement on the previous version,’ says Ade Emsley, of his work on the updated AD200. ‘It still does everything the old one does, it’s still the industry standard, but it’s now simpler, easier to use, easier to service and futureproof.’
The new, decluttered front panel design is reminiscent of the company’s iconic 1970’s amps with its original ‘bubble-writing’ Orange logo and the ‘pics-only’ hieroglyphs, all wrapped in the company’s distinctive orange Tolex covering.
Over the last forty years, the Orange Bass Cabinets have become an undeniable industry standard. They have been remodelled to use Celestion Pulse XL bass speakers across the OBC810C, OBC410HC, and OBC115C cabs. The upgrade delivers a tight, punchy low-end with a warm mid-range that’s full of presence. The premium build of these cabinets remains, delivering players, bands and techs the road-worthy dependability they demand. In addition, the popular OBC410HC has been modified by removing one vertical partition and strengthening the horizontal one to be lighter and tighten up low-end response.
For more information, please visit orangeamps.com.
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The Enigmatic nails the flexibility, for sure. To my ears, its tone foundation lives somewhere on a sliver of Venn diagram where a black-panel Fender and a 50-watt Hiwatt intersect. It’s alive, dimensional, snappy, sparkly, massive, and, at the right EQ settings, hot and excitable. But the Enigmatic’s powerful EQ and gain controls, multiple virtual cab and mic pairings, rock, jazz, and custom voices, plus additional deep, bright, and presence controls enable you to travel many leagues from that fundamental tone. The customization work you can do in the app enables significant changes in the Enigmatic’s tone profile and responsiveness, too. All these observations are made tracking the Enigmatic straight to a DAW—making the breadth of its personality even more impressive. But the Enigmatic sounds every bit as lively at the front end of an amp, and black-panel Fenders are a primo pairing for its saturation and sparkly attributes. The Enigmatic is nearly $400, which is an investment. But considering the ground I covered in just a few days with it, and the quality and variety of sounds I could conjure with the unit just sitting on my desk, the performance-to-price ratio struck me as very favorable indeed.
This month’s mod Dan’s uses a 500k linear pot, a 1.5H inductor (L) with a 0.039 µF (39nF) cap (C), and a 220k resistor (R) in parallel.
Don’t let the name fool you, this is a purely passive device—nothing is going to be boosted. In general, you can’t increase anything with passive electronics that isn’t already there. Period. But you can reshape the tone by deemphasizing certain frequencies and making others more prominent (so … “boost” in guitar marketing language). Removing highs makes lows more apparent, and vice versa. In addition, the use of inductors (which create the magnetic field in a guitar circuit) and capacitors will create resonant peaks and valleys (bandpasses and notches), further coloring the overall tone. This type of bandpass filter only allows certain frequencies to pass through, while others are blocked, and it all works at unity gain.
“You can’t increase anything with passive electronics that isn’t already there … but you can reshape the tone by deemphasizing certain frequencies and making others more prominent.”
All the systems I mentioned above are doing more or less the same thing, using different approaches and slightly different component values. They are all meant to be updated tone controls. Our common tone circuit is usually a variable low-pass filter (aka treble-cut filter), which only allows the low frequencies to pass through, while the high frequencies get sent to ground via the tone cap. Most of these systems are LCR networks, which means that there is not only a capacitor (C), like on our standard tone controls, but also an inductor (L) and a resistor (R).
In general, all these systems are meant to control the midrange in order to scoop the mids, creating a mid-cut. This can be a cool sounding option, e.g. on a Strat for that mid-scooped neck and middle tone.
Dan Torres offered his “midrange kit” via an internet shop that is no longer online, same with his business website. The Torres design is a typical LCR network and looks like the illustration at the top of this column.
Dan’s design uses a 500k linear pot, a 1.5H inductor (L) with a 0.039 µF (39nF) cap (C), and a 220k resistor (R) in parallel. Let’s break down the parts piece by piece:
Any 500k linear pot will do the trick, in one of the rare scenarios where a linear pot works better in a passive guitar system than an audio pot.
(C) 0.039µF cap: This is kind of an odd value. Keeping production tolerances of up to 20 percent in mind, any value that is close will do, so you can use any small cap you want for this. I would prefer a small metallized film cap, and any voltage rating will do. If you want to stay as close as possible to the original design, use any 0.039 µF low-tolerance film cap.
(L) 1.5H inductor: The original design uses a Xicon 42TL021 inductor, which is easy to find and fairly priced. This one is also used in the Bill Lawrence Q-Filter design, the Gibson standard Varitone, and many other systems like this. It’s very small, so it will fit in virtually every electronic compartment of a guitar. It has a frequency range of 300 Hz up to 3.4 kHz, with a primary impedance of 4k ohms (that’s the one we want to use) and a secondary impedance of 600 ohms. Snip off the three secondary leads and the center tap of the primary side and use the two remaining outer primary leads; the primary side is marked with a “P.” On the pic, you can see the two leads you need marked in red, all other leads can be snipped off. You can connect the two remaining leads to the pot either way; it doesn’t matter which of them is going to ground when using it this way.
Drawing courtesy of singlecoil.com
(R) 220k: use a small axial metal film resistor (0.25 W), which is easy to find and is the quasi-standard.
Other designs use slightly different part values—the Bill Lawrence Q-filter has a 1.8H L, 0.02 µF C and 8k R, while the old RA Gresco Tone Qube from the ’80s has a 1.5H L, 0.0033 µF C, and a 180k R, so this is a wide field for experimentation to tweak it for your personal tone.
This mid-cut system can be put into any electric guitar not only as a master tone, but also together with a regular tone control or something like the Fender Greasebucket, or it can be assigned only to a certain pickup. It can be a great way to enhance your sonic palette, so give it a try.
That’s it! Next month, we’ll take a deeper look into how to fight feedback on a Telecaster. It’s a common issue, so stay tuned!
Until then ... keep on modding!