ROTEL RA-211
¥ 21,000 (around 1973)
Commentary
This is a pre-main amplifier with performance and usability condensed in a compact size.
Silicon transistor is used.
Two pairs of speakers can be connected.
Model Rating
Type | Pre-main amplifier |
Power Amplifier Unit | |
Music power | 29W (4 Ω) 26W (8 Ω) |
Effective power | 12W/12W (8 Ω) 9.5W + 9.5W (8 Ω) |
Harmonic distortion factor (1 kHz) | 0.15% (8W output) |
Output band characteristic | 15 Hz to 45 kHz -3dB |
Damping factor | 30 (8 Ω) |
Preamplifier Section | |
S/N | Phono:65dB Aux:70dB |
Input Sensitivity / Impedance | Phono1 : 2mV/45k Ω Phono2 : 86mV/95k Ω Aux, Tuner : 150mV/85k Ω Tape in : 230mV/15k Ω |
Loudness control | + 10 dB at 50 Hz, + 4 dB at 10 kHz |
Tone control | Bass : ± 10 dB (50 Hz) Treble : ± 10 dB (10 kHz) |
<General> | |
Semiconductor used | Transistor : 20 Diode : 3 pcs |
External dimensions | Width 320x Height 110x Depth 210 mm |
Weight | 3.0kg |