Stereo Control Amplifier RC-990BX

A Stereo pre-amplifier with remote control (RR-909), partner to the RB-990BX Stereo Power Amplifier. With a totally symmetrical push-pull circuit topology. Input RCA sockets for  Phono, CD, Tuner and Aux.  Input/Output RCA sockets for Tape 1 and Tape 2. Output RCA sockets for connection to two power amplifiers. Push buttons for Standby and Mute. Rotary controls for Volume and Balance. Rotary switches for Recording (Phono, Tuner, Off, CD, Aux, Tape 1), and Listening  (Phono, Tuner, CD, Aux, Tape 1, Tape 2). Power on and Mute Indicators. MM/MC push button switch on the back. Two switched AC outlets (800W max). Jack for Headphones.

Total Harmonic Distortion Line ........:  ≤ 0.004% (20Hz-20kHz at rated output, CD/Tuner)
Intermodulation Distortion Line ...... :  ≤ 0.004% (60Hz:7 kHz at rated output, CD/Tuner)
Headphones load impedance .........:  8 - 2000Ω
Input Sensitivity/Impedance :
                                Phono MC ......:  250µV/100Ω
                                Phono MM ......:  2.5mV/47kΩ 
                                Line ................:  150mV/18kΩ
Output Sensitivity/Impedance .........:  1.0V/100Ω
Frequency Response:
                                Phono .............:  20Hz - 20kHz,  ± 0.2dB (RIAA Standard)
                                Line ................:  4Hz - 100kHz, ±0.5dB
Signal to Noise Ratio :
                                Phono MC ......:  70dB
                                Phono MM ......:  75dB
                                Line ................:  100dB
Power Consumption .......................:  13 watts (2.4 watts on Standby)

Versions/Power Requirements
100 V AC 50-60Hz
120 V AC 60Hz
230 V AC 50Hz
240 V AC 50Hz

In questo link sono elencati 340 modelli, di cui 329 con immagini e 32 con schemi.
Elenco delle radio e altri apparecchi della Roland Electronics Co. Ltd., Rotel; Tokyo