The B173 Neve-style preamp joins the 500-series realm with astounding confidence, featuring the same Cinemag input transformer and a plethora of other delicious internal components. Black Lion proudly proclaim that between the B173 and B173 500, not a single feature or component is compromised.

Mic Section

  • Max Microphone Input Level: +1 dBu
  • Input Impedance: 200Ω
  • Gain: +12dB to +80dB
  • Equivalent Input Noise (noise floor): -103dB
  • THD+N (@ +4dBu output): .072% @ +8 dBu Gain | .074% @ +29 dBu Gain | .082% @ +44 dBu Gain | .152% @ +60 dBu Gain | .709% @ +76 dBu Gain
  • Bandwidth (1kHz, 150Ω source, unweighted): 10Hz to 30kHz
  • Hi-Z Section
  • THD+N (@ +4dBu output): .0045% @ +10 dBu | .0076% @ +15 dBu

Output Section

  • Max Output Level: +29dBu
  • Output Impedance: 600Ω

General

  • Power Supply: +24V provided by ultra low noise, custom power supply (500 series rack required)
  • Product Dimensions: 1 .5” x 6.5” x 5.25”
  • Product Weight: 1.2 lbs
  • Shipping Dimensions: 13” x 13” x 5”
  • Shipping Weight: 3 lbs

Main Features

  • 500 Series format (500 series rack required for use)
  • Cinemag Input Transformer
  • Edcor Output Transformer
  • 80dB Gain
  • Hi-Z Input (passive, unbalanced)
  • Phantom Power
  • Phase Switch
  • Output Attenuator
  • Preamp and line amp circuitry found in the B173 500 is identical to the original B173

Authorised Retail Partners

Gear4music
SX Pro
Red Dog Music
Funky Junk