Detail 01
40 watts; 5881-powered
It is a 40-watt tube guitar head powered by 5881 tubes.

Independent shopping perspective
Dirty Shirley is a 40-watt, 5881-powered single-channel guitar head voiced around vintage British classic-rock sounds while retaining Friedman's high-gain character. Its gain and master controls cover blues, rock and country settings, and reducing the guitar volume cleans the amp up. The three-position gain-structure switch lowers the overall gain when required. Boosts, overdrives, modulation and wah pedals are welcome up front, while the series loop handles time-based pedals and rack units.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.
Detail 01
It is a 40-watt tube guitar head powered by 5881 tubes.
Detail 02
The switch reduces the amplifier's overall gain.
Detail 03
It accommodates time-based pedals and rack units.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
Yes. Backing off the guitar's volume knob cleans up the sound.
It is designed for boosts, overdrives, phasers, flangers, tremolos and wahs; its series loop handles time-based pedals and rack units.
Reference
The complete catalog record, organized around the decisions musicians make when comparing gear.