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Beskrivning
Marantz 4240 är förmodligen en av de mest väldesignade mottagare som Marantz tillverkade under 70-talet. Medan varannan tillverkare var låst i strid om monsterwatt, lutade sig Marantz på sina tekniska chops för att tackla fyrhjuling med en enhet som fortfarande hanterar 2-kanals som en mästare. Den här modellen har varit en arbetshäst i nästan 50 år sedan den släpptes, och det här exemplet bara sjunger.
FACTORY SPECS
FM Section
Tuning Frequency Range 88-108MHz
IHFM Usable Sensitivity 2.3µV @ 30dB, 50µV @ 70dB
IHF Selectivity 60dB
Capture Ratio 1.6dB
Image Rejection better than 60dB @ 106MHz
Signal to Noise Ratio 70dB (Mono), 60dB (Stereo)
Total Harmonic Distortion (THD) 0.3% (Mono), 0.4% (Stereo)
Frequency Response 30Hz-15kHz ±1dB
Stereo Separation 40dB @ 1KHz, 30dB @ 15KHz
Quadradial Output 300mV, 15kO (400Hz 75kHz dev.)
AM Section
Tuning Frequency Range 540-1605kHz
Usable Sensitivity 20µV or less
Selectivity 1000kHz, 30dB
Image Rejection Ratio better than 60dB @ 1400kHz
Signal to Noise Ratio 45dB
Frequency Response (-6dB) 50Hz-3.5kHz
Total Harmonic Distortion 1%
Bandwidth 7kHz @ -6dB
Audio Section
Power Output (RMS) 80w @ 8O (40 x 2), 68w @ 8O (17 x 4); 25W into 8?, 25W into 4?, 13W into 16?
Frequency Response 30Hz-15kHz ±1.0dB at 1W output
Total Harmonic Distortion (THD) Less than 0.3%
Input Impedance/Sensitivity 47k?/2.2mV for 25W output (phono) / 100k?/150mV for 25W output (line)
Damping Factor More than 45 at 8?
FACTORY SPECS
FM Section
Tuning Frequency Range 88-108MHz
IHFM Usable Sensitivity 2.3µV @ 30dB, 50µV @ 70dB
IHF Selectivity 60dB
Capture Ratio 1.6dB
Image Rejection better than 60dB @ 106MHz
Signal to Noise Ratio 70dB (Mono), 60dB (Stereo)
Total Harmonic Distortion (THD) 0.3% (Mono), 0.4% (Stereo)
Frequency Response 30Hz-15kHz ±1dB
Stereo Separation 40dB @ 1KHz, 30dB @ 15KHz
Quadradial Output 300mV, 15kO (400Hz 75kHz dev.)
AM Section
Tuning Frequency Range 540-1605kHz
Usable Sensitivity 20µV or less
Selectivity 1000kHz, 30dB
Image Rejection Ratio better than 60dB @ 1400kHz
Signal to Noise Ratio 45dB
Frequency Response (-6dB) 50Hz-3.5kHz
Total Harmonic Distortion 1%
Bandwidth 7kHz @ -6dB
Audio Section
Power Output (RMS) 80w @ 8O (40 x 2), 68w @ 8O (17 x 4); 25W into 8?, 25W into 4?, 13W into 16?
Frequency Response 30Hz-15kHz ±1.0dB at 1W output
Total Harmonic Distortion (THD) Less than 0.3%
Input Impedance/Sensitivity 47k?/2.2mV for 25W output (phono) / 100k?/150mV for 25W output (line)
Damping Factor More than 45 at 8?
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Marantz 4240 Receiver
Slutar 5 jan 20:49
Utropspris
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12 000 kr