Retro - Balanced RIAA Stage


Hi-Z (for high impedance cartridges) Schematic Parts List
 
Lo-Z (for low impedance cartridges) Schematic Parts List
 
Board Outline

The Retro is a balanced RIAA filter/gain stage for integrating vinyl into your balanced audio chain. Designed for MC cartridges, the Retro uses Texas Instruments OPA1632 fully-differential and OPA-1642 JFet-input op-amps, low-noise Dale RN55/CMF55 resistors, Wima and Dayton Audio MKP, and CD silver-mica capacitors.

While Retro is designed for balanced wiring or your cartridge, it will also support standard single-ended input wiring (by tying -IN to GND), and still provide balanced output.

You can read more about the Retro module on DIYAudio.

The Retro requires a 12-15V bipolar supply, such as our LCBPS or Placid BP.



Ordering Options
Kits
Retro "HI-Z" Complete Kit
  • Stereo Pair (Two Mono Channels)
  • Op-amps premounted
  • $75.00 USD
    Retro "LO-Z" Complete Kit
  • Stereo Pair (Two Mono Channels)
  • Op-amps premounted
  • $75.00 USD
    PCBs
    Retro "HI-Z" Board Pair (no parts) $26.00 USD
    Retro "LO-Z" Board Pair (no parts) $26.00 USD