Stereo Console Model 7

A stereo hi-fi valve preamplifier housed in a metal case, a mahogany, walnut or blond wooden outer cabinet available for an extra $24. 8 position selector for Microphone, Phono 1, Phono 2, Tape-Head, FM-AM, FM (Multiplexed), TV and Aux. 5 position Mode switch for Stereo, Stereo Reverse, Channel A, Channel B and Channel A+B (last 3 are mono positions and will be heard from both speakers). Controls for Volume, Balance, Left and Right Bass and Treble, High Filter, Rumble Filter, Record Equalizer and Tape Playback/Monitor. On the rear, Output Level-Sets, Tape-Head Equalizer Adjustments, 9 pairs of Inputs, 3 pairs Outputs, 6 AC Outlets and System Grounding Point.

General Data
Gain
  Phono and Tape Head 64.5dB
  Microphone                62dB
  High Level                  22.5dB
At Recording Output
  Phono and Tape Head 42dB,
  Microphone                40dB,
  High Level Unity          (0dB)
Frequency Response   20Hz - 20kHz within 0.5dB
Total Noise                  80dB below 10mv phono input with RIAA curve (20Hz-20kHz)
                                  Hum is far below thermal noise

In questo link sono elencati 568 modelli, di cui 559 con immagini e 91 con schemi.
Elenco delle radio e altri apparecchi della Marantz (Sound United LLC); Vista, CA