I have the AW Electric Instrument Co. "Bassman Amp"  5F6A circuit and this amp has done everything I have asked of it and more. From smooth, sparkly cleans to growling, tube driven leads full of character and presence, this amp does it all. I am not a huge pedal guy, so having an amp that can achieve a wide range of tones just by adjusting the gain level is what I was after and exactly what this amp delivers. I used my amp on every song on my band's last record and it was a dream to work with in the studio, too. The construction and attention to detail is phenomenal and you can't find a better guy to work with than Mark. 

       - Jack Winders - Horseplay