ALembic F1-X in 2026 custom rack.

Never gigged, works as it should.

Tube Circuitry: Uses a single 12AX7 tube running on a high-voltage 300V supply to prevent distortion on large transients, with a regulated DC heater supply for low hum. [1, 2]

• Inputs: Two front-panel 1/4" input jacks (Input 2 includes a 6 dB pad). [1, 2]
• Tone Controls: Interactive Bass, Middle, and Treble EQ controls, supplemented by Bright (shunts high frequencies around the volume) and Deep switches. [1, 2]
• Active Crossover: Built-in 12 dB/octave active crossover network with a front-panel high-frequency trim control and separate low/high rear outputs for bi-amping. [1, 2]
• Outputs & I/O:
• • Full-range 1/4" output
  • Transformer-isolated balanced XLR (Cannon) direct output with Pre/Post source and Ground lift switches
  • Effects loop (Send/Return) buffered by a cathode follower circuit