Sparkos Labs is proud to offer the first BA312 Upgrade for vintage Sansui Receivers from the 1970’s.  Many of the Sansui receivers from the 70’s used an old, inferior integrated-circuit (IC) called the BA312. These components are no longer available today and require donor units to procure.  We’ve designed a drop-in replacement using our SS3601 discrete op amp and a custom adapter module that brings life and performance to your old Sansui! Each Module requires minimal soldering/desoldering skills with NO CUTTING and NO JUMPER WIRES!

Below are all the applicable models the upgrades work for currently:

SANSUI 990, 990DB, 9090, 9090DB

SANSUI 890, 890DB, 8080, 8080DB

Each Kit includes:

-Two (x2) Sparkos Labs BA312-S Adaptive Modules Pre-Fit W/ Sparkos Labs SS3601 OP-Amps

-Four (x4) High Grade Audio Nichicon UKA/UKT capacitors and one (x2) Low Noise/Precision Vishay Carbon Film resistor.

-Easy to use printed Installation Directions

Basic soldering and desoldering, electronic skills are required. We recommend you download a free service manual for your unit readily available online.