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Year of manufacture: 1958 - 1966
Manufactured by: Marantz America, Inc. 1100 Maplewood Dr Itasca, IL 60143
Price when new (in the USA): $249.00 (wood case, mahogany, walnut or blonde - $24.00)
Description: preamplifier
Mono/stereo: stereo
Overall gain (balance at "normal"): phono & tape head: 64.5dB; at recording output: 42dB
microphone: 62dB; at recording output: 40dB
high level: 22.5dB; at recording output: unity (0dB)
Harmonic distortion:  
Intermodulation distortion: 10 volts peak RMS 0.1%; 2 volts 0.01%
Frequency response: 20Hz to 20kHz ± 0.5dB
Hum and noise: 20 - 20,000 cps: 80dB below 10mV phono input with RIAA curve. Hum is far below thermal noise
Inputs: microphone, phono 1, phono 2, tape-head, FM-AM, FM (multiplexed), TV, auxiliary
Tone controls: separate step-type feedback controls for each channel in increments of 3dB at 50 cs and 2½ dB at 10Kcs
Record equaliser: RIAA, old COL LP, early 78 (on phono postion only); NARTB curve on tape head position and flat on microphone position
Filters: high filter 9Kcs and 5Kcs; rumble filter 50 and 100 cps
Tubes: 6 x 12AX7 (ECC83)
Dimensions (in cabinet): 14½ in. x 8½ in. x 5½ in. (365 x 216 x 137 mm)
Weight (without case): 15 lbs (6.8 kg)
Power consumption: 105-125 volts 50 - 60 c/s. Consumption 20 watts