Marantz Model 4270 Receiver

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Front View EBay Auction #104730276 Date: May 15th, 1999 Oblique View EBay Auction #1206465317 Date: January 9th, 2001 Rear View EBay Auction #104730276 Date: May 15th, 1999

General Rarity Scarce Retail Price 699.95, October 1st 1974 Marantz Dealer List First Year 1973 Last Year 1978 Wood Case WC-122?, WC-22 Blue Face Yes Channels Four + Two Speaker Connections Eight sets Chassis Ground Binding Post AC Switch Yes Fusing Rear Deck Switched AC Outlets One at 100 watts Unswitched AC Outlets One at 200 watts Special Option 1 RC4 Remote Control Special Option 2 SQA2B

Physical Panel Width 17 -21/64 inches Panel Height 5 - 25/64 inches Weight 49 lbs, shipped, unit alone 40.2 lbs

Amplifier RMS Power Per Channel 25x4 or 70x2 Total Harmonic Distortion (THD) 0.3% Power Bandwidth 20 hz to 20 khz Intermodulation Distortion (IM) 0.3%

FM Tuner Gyro Tuning Yes RF Sensitivity 1.9 uV 300 Ohm Binding Posts Yes 75 Ohm Binding Posts Yes Ultimate Quieting 70 dB @ 50 uV THD, Stereo 0.40% Capture Ratio 1.5 dB Adjacent Channel Selectivity (Wide or Normal) 060 dB Stereo Separation at 1 kHz 40 dB Mono Switch Yes Signal Strength Meter Yes Center Tuning Meter Yes Stereo Lamp Yes FM Mode Lamp Yes Muting Switch Yes 25 uS Deemphasis Switch (Dolby Associated) On rear deck Dolby FM Decoding Standard Yes - L/r dolby FM adjusts on rear deck Quadradial Output (FM Discriminator output, unequalized) Yes Illuminated Dial Pointer Yes

AM Tuner Signal Strength Metering Yes External Ferrite Antenna Yes Antenna binding Posts Yes

Preamplifier Multiple Bass Adjustments Yes Multiple Midrange Adjustments Yes Multiple Treble Adjustments Yes High Filter Yes Gain Control Yes Loudness Contour Switch Mono Yes Quadraphonic Dimension Yes Balance F-l/r, R-l/r, F/R Number of Tape Monitors Two 4-channel Auxillary Input Source Yes (quad) Phono Input Source Yes Tuner Source Input AM, FM Source Tape Input (as opposed to a tape monitor) Yes 2nd Source Tape input (as opposed to a tape monitor) Yes Tape Monitor Yes (quad) 2nd Tape monitor Yes (quad) Preamp to Amplifier Jumper(s) front and rear pairs Dolby Tape Yes Headphone Jack(s) 1 pair for quad listening Speaker Selection Nomenclature Main, Remote (x4)