RA-211 is an integrated amplifier made in 1973 by Rotel
2x10W
Phono, tuner, aux and tape inputs
Minimal depth
Power output: 10 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 65kHz
Total harmonic distortion: 0.2%
Damping factor: 35
Input sensitivity: 2.7mV (MM), 140mV (ceramic), 170mV (line)
Signal to noise ratio: 63dB (MM), 70dB (line)
Dimensions: 13 x 6.5 x 4 inches
Weight: 9lbs
Data sheet