Used DiCosimo Audio 360+ Bass Preamp

The 360+ is known for its "hi-fi" yet aggressive vintage tone. Because the original ran at a high voltage, DiCosimo uses an internal charge pump to boost a standard 9V input to 24V, preserving the headroom and dynamic response of the original rack unit.

• Variamp Control: This is the centerpiece of the EQ section. It is a rotary switch that selects between different center frequencies, allowing you to specifically target and boost or cut mid-range frequencies.
• Fuzz Section: The original 360 was famous for its built-in fuzz. The DiCosimo version includes this circuit (utilizing a germanium transistor) and adds a Blend knob, which was not on the original. This allows you to mix your clean signal back in to maintain low-end clarity while using the "gnarly" fuzz.
• EQ & Switches:
  • Bass and Treble: Traditional shelving controls.
  • Bright Switch: Adds a treble boost for extra "snap" or presence.
  • Pad Switch: Drops the input level to accommodate high-output active basses.
  • Attack: A dedicated control for the fuzz section that adjusts the character from smooth to harsh