Black Jack
October 14th, 2009
I would call this a “utility amplifier” because it’s not voiced for a particular sound or configuration; instead my goal was to develop a transparent amp that could be used with guitar, bass, stompboxes and even ampsims and other line-level sources. It’s pretty simple as heads go but it does pack quite a few features for its size:
- 12AX7 preamp section
- 20W solid state power section
- FX loop (preamp out, poweramp in), plus the preamp and power amp can be powered off independently, to be used as needed
- 2 channels: second channel removes preamp negative feedback
- switch-mode power supply for light weight and high efficiency
- controls: gain, master volume, channel, preamp on/off, poweramp on/off





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