Welcome to Granger Amplification. We manufacture high performance vacuum tube amplifiers.



Granger CG50 Custom

The Granger CG50 Custom "Signature" valve amplifier is a handwired 2-channel signature amplifier specifically designed with the "versatile, multi-genre" guitarist in mind. The tones have characteristics of classic British and American amps. Each channel has it's own tone stack, gain, drive, and volume controls, so the tonal variations are nearly infinite. The normal (clean) channel produces lush, harmonic-rich tones at lower drive settings and moderate crunch at higher gain/drive settings, while the overdrive channel produces moderate to high gain, overdriven tone and creamy sustain while never sounding harsh or brittle. Both channels are very responsive to the touch. There is a single one-button footswitch to change channels, utilizing only one relay to minimize any tone degradation, and the rest is pure all-tube tone using the finest tone-enhancing components. High and Low impedance inputs allow the guitarist to match guitars and pickup configurations. The preamp consists of 3 ECC83S valves and power is rectified by four UF4007 diodes. The power section runs on two 6L6GC which produces 50 watts of soul-pleasing, hair-moving volume. For the service-minded player, an external bias adjustment with low voltage test points allows the user to bias the amp when replacing output valves without removing the chassis.

Granger CG50 Custom valve amplifier

Granger CG50 sound clips

Granger CG50 Custom features:

* Handcrafted in USA
* Custom US Made power and output transformers
* Turret board wiring
* Output (RMS): 50 watts
* Preamp valves: 3 x ECC83S
* Power amp valves: 2 x 6L6GC
* UF4007 (x4) Diode rectifier
* Normal channel
* Overdrive channel
* Channel switching via footswitch or front-panel switch
* Preamp Gain, Drive on each channel
* Bass, Mid, Treble, Volume on each channel
* Presence control
* Master Volume
* Plexi control knobs
* Carling toggle switches
* Cliff input and footswitch jacks
* Cliff output jacks (2)
* 4/8/16 ohm impedance selector switch
* External bias adjustment control
* Dimensions: 26"W x 10-1/4"H x 8"D
* Weight: 32 lbs.

* Ultimate FX Loop ($100)
* Custom Head Cover ($50)
* Tolex/Piping Change ($25)

Click to see Tolex and Grill cloth colors

Additional (No charge) options (please specify in special instructions field when ordering):

* EL34 or KT77 output tubes

Please specify options during ordering, or contact us within 10 days after placing order.

Please see our current turnaround times before ordering! Each amp is custom built to order.


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Prices subject to change without notice. Orders already in progress are not subject to price changes. Granger Amplification reserves the right to make any product design changes without notice or obligation to incorporate these changes in products previously purchased.

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All content copyright 2007-2018 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, boutique amp builds, and custom 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, amplifier, handwired, point to point, tube, vacuum tube, valve amp, kit build, amp kits, made in usa, d18, e35, m45, m50, g50, cg50, lead overdrive 100, dragonfly, marshall, fender, jtm50, jmp, jcm, superlead, plexi, 15 watt, 18 watt, 35 watt, 36 watt, 45 watt, 50 watt, 100 watt, single ended, push pull, 5E3, bassman, matchless, trainwreck, express, epiphone valve junior, blackheart, tweed, deluxe, curt granger, birmingham alabama