God save the Queen! Tube preamp based on VOX AC30 amplifiers. It uses two Sovtek 12AX7 tubes. It has Treble, Bass, Mid, Level and Gain controls. It has a wonderful, clean, crystal-clear tone, great for highlighting the sound of your instrument, all without losing the depth of the bass, a characteristic of tubes working at high voltage. Connecting some distortion or Boost before it reminds you a lot of Brian May's guitars. Connect it directly to your amplifier's "return" and get the classic sound you always wanted without having to spend a fortune on amplifiers. Connect it to the input of your transistorized amp and see how much warmer your sound will be.
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