What do these numbers really mean and can you trust them?
The process of choosing a new amp is never as emotional as buying an instrument. Still, it's a big deal, and to compare amps and determine whether they'll fit the bill, we need to understand some specs. When it comes to their basses, players often go into great detail about whether they can hear a tonal difference between various body woods and their “resonances," but it's rare to find players who know the most basic internal specs of their amps. Granted, everyone knows if they own a tube or solid-state amp, and how much power it purportedly delivers. But there's more behind power rating than just a numerical value, and it's important to realize that this output power depends on the external load or impedance of the attached cabinet.
In physics, power is permutated energy over a period of time, while in marketing, power has many more names. For example:total system power, sound power, peak power, or even PMPO, which stands for peak music power output. Manufacturers often act as if these are equivalent terms, but they're far from the technical standard of continuous power or RMS (Root Mean Square) power.
The differences in these values for a given amp can be of several orders of magnitude and were once so shamelessly used in marketing that in 1974 the Federal Trade Commission stepped in with its “Amplifier Rule" to combat unrealistic power claims. Unfortunately, this rule was amended in 1998 and power ratings once again got less precise and comprehensible.
The enemy of any amplifying electronic element is heat, which will destroy the device if you aren't able to dissipate it fast enough. A short slap-style riff will give the amp more time to rest and dissipate heat than a sustaining low B, so it makes sense to use the worst-case scenario of a continuous signal to get comparable power values.
Here, permutated energy over time is the key point, and the differences between peak and RMS power are shown in Fig. 1. RMS is the averaged continuous power over time (shown as the line marked P AVG), while peak power (the line labeled P 0) is a meaningless rating for any real musical scenario, as it just counts the interval of the peaks and totally neglects the amp's idle time.
There's another way to take this unrealistic rating even further: Stress an amp with a high signal of a few nanoseconds, followed by a long, long break to let it cool down. That's PMPO! And marketers aren't shy to advertise a power rating of several thousand watts in the headline before finally admitting a total energy consumption of a few hundred watts in the fine print. The total energy consumption or total system power is measured at the electrical outlet—lights and fans included—and thus says nothing about your amp's output power.
The term RMS stands for a mathematical method, but it's a well-accepted standard that clearly defines how to measure the output power by using a continuous pink noise signal within the audible frequency band of 20 Hz to 20 kHz. Additionally, it mentions the impedance or external load—often in the range of 2 to 8 ohms—at which an amp produces a specific power. Besides that, it's also important to know how much clipping or distortion occurs. Those total harmonic distortion (THD) values are typically in the range of 1 percent or lower. In a musical context, values of 5 or 10 percent represent an unacceptable amount of distortion, but would allow for stating a higher wattage value.
If we measure RMS power using different frequency bands, such as with bi-amped systems or active subwoofers, we generate misleading results, but the deviations are not as large as compared to PMPO or other terms mentioned above. The takeaway? It's more important to know what we are comparing than how it's been measured, and if we stick to RMS power, we're pretty much safe. In the end, it's simply about being an informed shopper who's able to accurately compare the output power of different bass amps.
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Looking for a compact, “noiseless” way to plug in and play guitar? Check out the brand-new Gibson Digital Amp, available only in the Gibson App.
The new Gibson App simplifies the learning process and brings guitar playing to life for the current and next generation of guitarists in a modern, comprehensive, and intuitive way. The Gibson App is the place to take your guitar playing to the next level. New to the Gibson App is the Gibson Digital Amp, the ultimate starting amplifier for beginners and a flexible amp on-the-go for intermediate players and pros to get their sound anywhere. The Gibson Digital Amp is an accessible amplifier for both acoustic and electric guitars, and is currently available for Apple/iOS users--an Android version will debut next year.
Use the Gibson Digital Amp’s jamming guide to get started and transform your sound with built-in effects and pedals, jam to backing tracks, or use it in lessons and songs. The Gibson Digital Amp only requires your phone, and wired headphones for the best playing experience, no cables are needed. The amp features 3 acoustic mic presets, 4 electric amp presets, and 6 effects pedals.
The Gibson Digital Amp is the ultimate starting amplifier for beginners and a flexible amp on-the-go for intermediates and pros.
The Gibson App uses a unique two-way, interactive platform to teach guitar students how to do everything from playing their first note to shredding loads of songs. The Gibson App features interactive lessons with thousands of lessons and songs. Learn the songs step-by-step with video tutorials from superstar artists and pro guitarists in the “Gibson App Guide.” The Gibson App also includes the new Digital Amp, a built-in tuner, a metronome, Gibson TV, and new songs are added every week. New Gibson App Guides are added regularly and include Tommy “Spaceman” Thayer’s favorite iconic KISS guitar solos, Richie Faulkner’s (Judas Priest) “Guide to Metal,” Jared James Nichols’ “Guide to Blues,” CELISSE’s “Guide to Songwriting,” and more.
The Gibson App uses “audio augmented reality” to provide dynamic feedback to students as they learn and play. As you pluck a note or strum a chord, the Gibson App listens to your guitar and gives you real-time feedback on your playing. It also gives students a more contextual learning experience: Instead of learning chords and scales in a vacuum, you’re able to practice on a scrolling tablature that lets you hear how you sound with the backing of a virtual band. That means you can load up “Hurt” by Johnny Cash, “Brown Eyed Girl” by Van Morrison, “American Girl" by Tom Petty, “Nothing Else Matters” by Metallica, “Where is My Mind" by Pixies, “Country Roads” by John Denver, “I Hate Myself For Loving You" by Joan Jett, “Heaven” by Kane Brown, “Shape Of You” by Ed Sheeran, “Killer Queen” by Queen,“ Sweet Child O’ Mine,” by Guns ‘N Roses, “Run to the Hills” by Iron Maiden, “Roxanne” by The Police, and “Don’t Stop Believin’” by Journey, “Smells Like Teen Spirit” and “The Man Who Sold the World” by Nirvana, “Are You Gonna Go My Way” by Lenny Kravitz, and “Don't Look Back In Anger” by Oasis and hundreds more songs in a wide range of genres, to see how your play matches up with such seminal tracks.
As you’re playing, the Gibson App gives you feedback on timing and tone, ensuring that students are getting active input on how their play is developing. The Gibson App appeals to players of all levels, it’s not just for beginners looking to learn a few chords; the app can assist seasoned guitarists who are working their way through difficult riffs, want to learn their favorite songs, or polish their advanced techniques.
Players can also challenge themselves by speeding up or slowing the tabs. Like having a full-time guitar teacher, the Gibson App keeps track of all your progress and adjusts lesson plans accordingly. The Gibson App released a “backing track mode” which supports both lesson and song playback without headphones, so users can self-select what works best for their current environment. And that’s not all: the Gibson App also packs in a fully-featured digital tuner for guitar first-timers, there’s even a detailed lesson on how to tune your instrument, a multi-function metronome, players can connect to free one-on-one consultations with Gibson’s Virtual Guitar Tech team, and to direct links to the Gibson, Epiphone, and Kramer online stores for easy shopping for guitars, gear, apparel, and accessories.
Learn Guitar With The Gibson App
The Gibson App is more than a pocket-sized guitar teacher, it’s loaded with an archive of exclusive content and original programming from its premium and accessible award-winning online network, Gibson TV, featuring music icons telling their best guitar stories, with more episodes and installments added regularly. Users can watch Black Sabbath’s Tony Iommi share insights and tales from his decades-long career on the series “Icons,” dive into Joe Bonamassa’s assortment of legendary Les Paul guitars on “The Collection,” or see how Gibson’s iconic instruments are made in their Nashville factory from body to binding on “The Process.” There’s even a series called “The Scene” that focuses on backstage stories from hallowed music venues from coast to coast like The Troubadour and Grand Ole Opry.
The Gibson App free version features a few lessons a day; the premium version of the Gibson App offers full access and a 14-day free trial, then costs $19.99/£16.49 monthly or $119.99/£98.99 yearly.
For more information, please visit gibson.com.
This pickup captures the clear, bell-like single-coil chime of a classic P-90 when played clean and retains the tight mids and articulate low-end vintage growl and smooth sustain saturation when pushed into overdrive.
Belltone Guitars, as part of their Custom-Select System curated offering of pickups, has partnered McNelly pickups to create a one-of-a-kind retro-vibe P-90 pickup in the standard Filtertron size format. This pickup captures the clear, bell-like single-coil chime of a classic P-90 when played clean and retains the tight mids and articulate low-end vintage growl, and smooth sustain saturation when pushed into overdrive.
The McNelly P-90 Foil-Coil comes housed in a ‘raw’ nickel outer casing with a dull nickel foil face with metal mount screw gromets to complete the ‘new-vintage’ aesthetic, making it a perfect choice for your signature Belltone custom build. Available exclusively through Belltone Guitars.
Check out the Custom-Select System belltoneguitars.com to preview the McNelly P-90 Foil-Trons and all our standard and selectable components available to create your own signature Belltone. Then visit the Dream Lab on our website and select either model B-Classic ONE with its top binding or B-Classic TWO with its arm and body contours select your body color from our wide range of offerings, select your neck profile of either standard ‘C’ or thicker ’59 Round Back and either Maple or Rosewood fingerboard followed by your tuners, pickguard, and strings. Finally, review our curated custom-designed, and unique pickup selection to locate the McNelly P-90 Foil-Trons to complete your signature build.
Builds start at just over $2,300.00 with a custom case and shipping included.
For more information, please visit belltoneguitars.com.
McNelly P 90 Foil Tron video Sep27
Belltone P-90 Foil-Tron Pickup
DiMarzio, Inc. announces the Relentless P (DP299), the Relentless J Bridge (DP301), Relentless J Neck (DP300), and the Relentless J Pair (DP302) for 4 string basses.
DiMarzio, Inc. announces the release of the Relentless P (DP299), the Relentless J Bridge (DP301), Relentless J Neck (DP300), and the Relentless J Pair (DP302) for 4 string basses. The new Relentless P and Relentless J series pickups feature the Relentless cover designed in collaboration with Billy Sheehan.
As with the Relentless pickups, we removed all the hard edges from the standard P Bass and standard J Basspickups, and added an arch to the top of the pickups to bring the sensing coils and pole pieces closer to the strings. These improvements increase the dynamic range and make active circuitry unnecessary.
The Relentless P and Relentless J pickups incorporate Neodymium magnets and produce 70 percent more output than traditional passive pickups, and they’re dead quiet due to the incorporation of metal covers and foil-shielded cables. To dial in (or fine-tune) the individual string output, the Relentless P and Relentless J include eight adjustable pole pieces. These pickups also have a broad magnetic field so you can even bend notes without volume dropout.
DiMarzio’s extra shielding makes the Relentless P and Relentless J better for both recording and stage performances. We’ve mounted them onto robust .09375” thick circuit board base plates to eliminate the annoying protruding mounting screws — ultimately creating a more comfortable and consistent foundation to rest your fingers on.
The new Relentless P steps beyond the traditional P-Bass sound and can only be described as massive. It has more of everything: more volume, beefier lows, a growling midrange, and crispy highs with better individual string definition.
The Relentless J incorporates a new invention, (patent pending) parallelogram-shaped coils, offering an expanded mid-range punch, snappy highs, precise lows, and a new dimension to the sound of the Relentless series pickups.
Relentless P and Relentless J pickups will breathe new life into any bass, increase playability, and work well for any style of music from Motown to metal.
DiMarzio’s Relentless P, Relentless J Bridge, Relentless J Neck, and Relentless J pair are made in the U.S.A. and may now be ordered for immediate delivery.
Suggested List Price for the Relentless P is $169.00 (MAP $119.99).
Suggested List Price for the Relentless J Bridge and Relentless J neck is $155.00 (MAP $109.99).
Suggested List Price for the Relentless J Pair is $296.00 (MAP 209.99).
For more information, please visit our website at dimarzio.com.