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THD UniValve - $635 (Fort Collins)
make / manufacturer:
THD
model name / number:
Univalve
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From THD: The THD UniValve is a Single-Ended Class-A amplifier head with a single output tube that can be switched at will among many octal-based power tubes, including 6L6, EL-34, 6550, 6CA7, 6V6, 6K6, KT-90, KT-88, KT-77 and KT-66, for different tones without re-biasing the amp. Likewise, the two preamp tubes can be any combination of 12AX7, 12AT7, 12AU7, 12AY7 or 12AZ7. The UniValve delivers tones from smooth and clear to very aggressive overdrive. It is easily capable of driving a 4x12" cabinet, yet quite small and light. Finally, it has a built-in Hot Plate® Power Attenuator that allows for full output distortion at almost any volume. The unique combination of our touch-sensitive input circuit and the wonderfully active and reactive tone control section (that we slaved a year to perfect) make for a front-end that really responds to subtle and not-so-subtle changes in the signal being fed into the amplifier either by the guitar or any effect that may be between the guitar and the amplifier.
Has an adjustable TRS Line Out and speaker output is impedance selectable for 2-4-8-16 Ohms. Switchable Plate voltage and bulb-based Noise Reduction. Manual for this amazing amp is here: http://www.thdelectronics.com/pdf/univ_manual.pdf.
Designed and signed by Andy Marshall with the famous "My Guitar Wants to Kill Your Mama" Frank Zappa quote adorning the back!
The top cage comes on/off with 4 thumb screws for changing the input, driver and output tubes. Super simple. Will come with a pair of 12AX7s and an output tube, but the fun with this amp is switching out tubes to check out the differences in tone and response. So many possibilities! Pics are without any 12AX7s installed - they go in the purple sockets.
Excellent condition, with "gig bag" with strap. I am selling because I am spending most of my time in the Fractal-verse these days. Cash Only, front range sale. If you want a reply, send me your phone number.