This handcrafted in the USA combo utilizes tongue-and-groove Baltic Birch construction and houses a 16 ohm, 12″ Celestion G12M Creamback speaker that delivers the bass, mid response and signature sound you would expect from a Friedman amplifier.
The Dirty Shirley also features a three-position gain structure switch which lowers the overall gain of the amplifier.
The Dirty Shirley 1×12 combo was designed to take pedals and loves boosts, ODs, phasers, flangers, tremolos and wahs, while the ultra-transparent series effects loop handles your time-based effects pedals and rack units.
Hand-wired in the USA.
Friedman History:
Dave Friedman is the man behind the signature tones of rock icons Eddie Van Halen, Steve Stevens and Jerry Cantrell. Dave Friedman has been building, modding and repairing amplifiers for many of the world’s biggest stars for the past 25 years. Friedman’s innovative designs and meticulous construction have made him legendary in the world of professional touring musicians while earning him a loyal clientele from all over the world. One of Friedman’s mainstays has been modifying amps to each player’s specific tonal palette, and to consult with other established amplifier companies to improve their own designs.
Dave Friedman’s extensive knowledge and pursuit of tonal superiority inspired him to develop his own series of production amplifiers under the name Friedman Amplification. In the past, having Friedman build or modify your amp required a certain level of notoriety, but now his sonic wizardry is available to everyday players.
Each Friedman amplifier is hand-wired in the U.S.A. using only hand selected components. You can buy with confidence because Friedman Amps are designed and built to last a lifetime.
- Power: 40W (tube)
- Single channel
- High- and low-sensitivity inputs
- Tubes: three 12AX7 (preamp); two 5881 (power amp)
- Speaker: Celestion 1×12″ G12M Creamback
- Controls: Gain, Master Volume, Bass, Middle, Treble and Presence
- Three-position gain structure switch
- Ultra-transparent series FX loop
- 4, 8 and 16 ohm Impedance selector switch
- Custom USA-made transformers
- Handwired in the USA
- Limited Lifetime warranty
- Dimensions: 9.5″ (D) x 24.25″ (W) x 22 (H)
- Weight: 52 lb.

















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