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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