Bricasti M20 Preamplifier

The M20 is a fully differential, dual mono Class A line preamplifier, built on the analog design of Bricasti's M12. Three linear power supplies feed the two analog channels and the digital control processor separately.

Volume is set by a discrete ladder of digitally controlled resistors in 1 dB steps, using an R-2R technique, with Vishay foil resistors in key positions. The output buffers are Bricasti's own discrete design, the circuit boards are ceramic, and all switching and output muting is done with logic-controlled relays.

There are two balanced XLR inputs and one unbalanced RCA input. The three outputs, two XLR and one RCA, are buffered separately, which suits bi-amping or two or three zones. Input names and level offsets are set from the menu, and a 5 V trigger output switches Bricasti amplifiers and DACs in and out of standby. Stillpoints isolation feet are included.

Finishes: Classic anodized black, Argento clear aluminum, or Platinum with brass fittings.

Specifications

• Inputs: 2 balanced (XLR), 1 unbalanced (RCA)
• Outputs: 2 balanced (XLR), 1 unbalanced (RCA), separately buffered
• THD+N: 0.0007%, 20 Hz–20 kHz, typical
• Input impedance: 200 kohms
• Maximum output: +23 dBu balanced; +16 dBu unbalanced
• Crosstalk: greater than 120 dB
• Attenuator: 90 dB in 1 dB steps, 0 to -89 dB
• Dimensions: 17 x 12.5 x 4.5 in; 15 lb
• Warranty: 2 years parts and labor