SPL SMC 2489 Surround Monitor Controller - D-Sub balanced 50kohm inputs, >10kohm RCA , <600ohm balanced jack, 0.01% THD + N @ 0dB input, -98dBu equivalent noise, 120dB S/N, 10Hz-100kHz. Dimensions: 91 x 272 x 220mm. Weight: 2.3kg