Counterpoint SA-20

"AS IS" Was sounding great, then there was a POP noise and unit shut downEffective powerSA-20 stereoSA-20/20 Strap monoSA-20/20 Bridge mono 640W (2 Ω load)420W (4 Ω load)220W (8 Ω load)760W (2 Ω load)460W (4 Ω load)220W (8 Ω load)Deprecated (2 ohm load)700W (4 Ω load)600W (8 Ω load)Frequency characteristic 1.2 Hz ~ 200 kHz (8 Ω Load)Rise time 0.6 μ sec (8 Ω Load)Total harmonic distortion factor 0.05% or Less (1W, Effective Output)Cross modulation distortion factor 0.025%(CCIF)0.02%(DIM200)0.018% (SMPTE, 1W, 8 ohm Load)SN ratio (input short) 84 dB (400 Hz to 80 kHz, no acoustic compensation, stereo, 8 Ω, 1W)Damping factor 60 (8 Ω Reference)Input impedance 100k Ω, 100 pfVacuum tube used 6DJ8 AudioTube : 5 pieces6CA4 Rectifier Tube : 1Power consumption 260W (idle)External dimensions Width 483x Height 170x Depth 483 mmWeight 25kg