This is one of our best sounding single-ended power amplifiers. Although it only outputs 2Wrms it can nevertheless drive a pair of speakers with 88db/W efficiency to a reasonable loudness level. It is also a very high quality headphone amplifier, with a super quiet, super warm, rich sound. The output transformer employs a NOS UTC 2W wide band transformer.
This is the enhanced version of our small powered 6AS7G amp, which has a bigger power transformer for higher power output capability as well as a more transparent sound quality. This version can be built with a 300Hz (option: any freq) high pass filter with a by-pass switch. This makes it easier to adapt between a normal single amplifier system or a bi-amped configuration. Input level controls give flexibility to best match the tonal balance between the hi-section and lo-section amplifiers in a bi-amped system.
The sound quality of this amp is very liquid and fluid, with superb openness and natural organics in the sound stage. We are confident you will love it.
Lower photo set shows a 3 input version.
Standard chassis includes MDF construction in any color, or a gold/silver aluminum type.