Original Stamford AVR, model MX321
Stamford MX321
Stamford MX322
Stamford MX341
Stamford MX342
Stamford SX440
Stamford SX460
Stamford AS440
Stamford AS460
Stamford AS480
Stamford AS540
Stamford SX440-A
Stamford SX460-A
Stamford AVR Isolation Transformer, 076-05425