Marantz - 4240 Solid state stereo receiver

This beautiful receiver is in excellent condition. In one of the four speaker connections, the red section is slightly pushed inward. It has no consequences; everything works fine.

General

Manufacturer: Marantz
Model: 4240
Type: Stereo / Quadruple receiver
Years of manufacture: 1973 - 1978
Made in: Japan
Color: Silver / Brown
Remote control: RC4 Remote Control
Power consumption: full load 650W, idle 50W
Dimensions: 441 x 137 x 385 mm (W x H x D)
Weight: 15 kg
Original price approx.: 2'198 DM
New price remote control RC4: 200 DM

Connections

Number of inputs:
2*Tape (150mV/100kOhm)
1*Aux (150mV/100kOhm)

1*Phono (2mV/47kOhm)
Number of outputs:
2*Tape (1V in 47kOhm).
1*pre-out (900Ohm)
2*Headphones (6.3mm jack)
4 pairs of speakers

Technical Specifications

Audio

Output power (at distortion)
Stereo: 2*40W / 0.15% Quadraphonic: 4*17W / 0.15%

Attenuation factor: 50
Frequency response: 20 - 20'000 Hz, ±1 dB
Distortion factor: 0.5%
Signal-to-noise ratio:
Tone control:
Bass: ±10dB at 50Hz
Mid: ±10dB at 700Hz
Treble: ±10dB at 15kHz

Loudness: 7dB at 100Hz, 4dB at 10kHz
High Filter: 10kHz, 6dB per octave
Low Filter: 100Hz, 6dB per octave
Mute: -

Sound Formats

Dolby
DolbyFM

Tuner

Reception: (FM/MW)
Frequencies:
FM: 88-108MHz
MW: 540-1602kHz
Frequency response:
Input sensitivity: 1.9µV
Distortion factor: 0.3% (stereo), 0.2% (mono) Signal to noise ratio: greater than 90dB

Channel separation: greater than 40dB
Selectivity: greater than 75dB
Co-wave selection: 70dB
Spurious selection: 90dB
Image frequency attenuation: 90dB
IF attenuation: 100dB
AM suppression: 50dB

Special Features