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

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Welcome to Granger Amplification! We build high performance, custom handcrafted vacuum tube guitar amplifiers.

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Granger Amplification builds great sounding, high performance, custom handcrafted tube amplifiers, using the finest components and time-tested designs. Granger amps are made in the USA!

Granger Amps = Awesome tone! We build high performance, custom handcrafted vacuum tube amplifiers, using only the finest components and time-tested designs. Granger amps are made in the USA! Call us at (800) 717-7660 for all your amplifier needs.

We also offer repair, modification, and servicing for tube amplifiers and guitars. See our services page for more detail. Contact us to find out what we can build, repair, or modify for you.

We offer amp parts, mod kits, tools, and accessories for amp builders, modders, and techs. Visit our Custom Shop to browse all our products.

Online/Fax/Phone Ordering. It's easier than ever to order! You can place your custom order for any of our amps online, by fax, or by phone.

News and updates:

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All content copyright 2007-2014 by Blue Nite Productions. Grangeramp.com is the website of Granger Amplification LLC, a company that builds high quality, handcrafted, custom amplifiers, with affordable pricing. Our focus is on producing all-tube, custom 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 offer repair, modification, service, and design work for guitars, amplifiers, and pro audio equipment. We specialize in Plexi recreations, and custom, tube amp designs. Site design by Curt Granger for Blue Nite Productions. All trademarks are owned by their respective companies and are only used herein for historical references. - Handwired, hand wired, custom, boutique guitar amps, point to point, tube amplifiers, tube guitar amps, boutique guitar amplifiers, guitar amplifier, amplifier, guitar, amp, amps, builder, for sale, fs, repair, mods, custom shop, handwired, tone, custom amp, custom amps, amp mods, vari-wattage, modifications, amplifier, hand built, handcrafted, point to point, tube, vacuum tube, valve amp, kit build, amp kits, made in usa, d18, v20, e35, 2x22, m20, mv36, m45, m50, m502, g50, cg50, m100, sbva-300, lead overdrive 100, dragonfly, gr100, marshall, fender, vox, jtm45, jmp, jcm, superlead, plexi, top boost, 18 watt, 20 watt, 22 watt, 40 watt, 45 watt, 50 watt, 100 watt, ac30, hiwatt, 5E3, slo100, brown sound, van halen tone, bassman, matchless, trainwreck, express, tweed, deluxe, curt granger, birmingham alabama