• WARNING: Tube/Valve amplifiers use potentially LETHAL HIGH VOLTAGES.
    Building, troubleshooting and testing of these amplifiers should only be
    performed by someone who is thoroughly familiar with
    the safety precautions around high voltages.

Quad 22 Valve Amps


diyAudio Senior Member
2002-08-21 1:20 am

While I must have stated this before, I often find that valve amps using this CFB configuration sound more musically convincing, I can't help but wonder why it's so hard to find a manufacturer who actually carries a range of these OPTS in their product catalogue.

Is there any particular reason for this that you guys are aware of?

Cheers, ;)