Dirty Shirley
40-watt single-channel head based on a modified JTM45, delivering vintage British crunch that cleans up by backing off the guitar's volume knob.
About this amp
The Dirty Shirley is a 40-watt, 5881-powered single-channel head based on a modified JTM45, delivering vintage British crunch that cleans up nicely by simply backing off the guitar’s volume. Loves pedals, especially boosts, ODs, phasers, flangers, tremolos, and wahs, with an ultra-transparent effects loop for time-based effects.
Specs
| Wattage | 40W |
|---|---|
| Power Tubes | 2x 5881 |
| Preamp Tubes | 3x 12AX7 |
| Channels | 1, high/low sensitivity inputs |
| Controls | Gain, Master Volume, Bass, Middle, Treble, Presence |
| Effects Loop | Ultra-transparent series |
| Impedance Options | 4/8/16 ohm |
| Construction | Black tolex, Baltic Birch |
| Dimensions | 9.5in D x 24.25in W x 22in H |
| Weight | 52 lbs |
Quick answers
- How much does the Dirty Shirley cost?
- Friedman Amplification lists it at $2,699.99 (USD). Dealer and used prices vary.
- Is the Dirty Shirley still available?
- Yes. Friedman Amplification lists it as a current model that's available to order.
- Who makes the Dirty Shirley?
- Friedman Amplification. Where it's built: Every Friedman amplifier is built in the USA with hand-selected components. After burn-in, Dave Friedman inspects, tubes, plays and signs each chassis before it ships. It's listed here as a tube head amp.