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The X-Gain Mod is an add-on for our Plexi series amps (M45, M50, and M100) that switches the Normal channel's gain stage from parallel (i.e. "mixed") to series (cascaded) with the Bright channel. In this mode, the overall available gain/overdrive is increased dramtically and is very much similar to amps used by guitar legends such as Randy Rhoads, Slash, George Lynch, et al. and perfect for those heavier hard rock and metal tones from the 80's and 90's. On the flip side, the tone will become more compressed and saturated, not always desirable for players who want the touch sensitivity that Plexi amps deliver, so we made it switchable via a push-pull pot for the Channel 2 Volume control. The signal remains all-tube - there are no clipping diodes or other solid state devices in the signal path.

In the X-Gain mode, Channel 2's (Normal) input jack becomes inactive. Switch off the X-Gain and the amp returns to the stock configuration, with both channels available to jumper or use individually. The X-Gain Mod is available as an add-on where noted on each product page.

We also offer the X-Gain Mod in kit form for $35 + shipping. All parts and step-by-step instructions, along with a wiring diagram, are included. Order yours now from the Custom Shop.


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All content copyright 2007-2013 by Blue Nite Productions. GrangerAmp.com is the website of Granger Amplification, a company that builds quality, custom amplifiers, one at a time, at very reasonable prices. Our focus is on producing all-tube, hand wired amplifiers based on proven designs such as vintage Marshall and Fender products, and other boutique amps, while charging a fair price. We also do kit building, modification, and repair work. We specialize in Plexi recreations, custom amp builds, Epiphone Valve Junior and other mods. All trademarks are owned by their respective companies and are only used herein for historical references. - guitar amplifier, amplifier, guitar, amp, amps, builder, for sale, fs, repair, mods, hand, wired, tone, custom amp, custom amps, amp mods, modifications, vari-wattage, amplifier, handwired, point to point, tube, vacuum tube, valve amp, kit build, amp kits, made in usa, m50, m45, cg50, g50, h50, dragonfly, marshall, fender, jtm45, jmp, jmp50, jmp100, jcm, jcm800, superlead, plexi, 15 watt, 18 watt, 40 watt, 45 watt, 50 watt, 100 watt, matchless, trainwreck, ods, epiphone valve junior, blackheart, tweed, deluxe, curt granger, birmingham alabama