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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
RarityScarce
Retail Price699.95, October 1st 1974 Marantz Dealer List
First Year1973
Last Year1978
Wood CaseWC-122?, WC-22
Blue FaceYes
ChannelsFour + Two
Speaker ConnectionsEight sets
Chassis GroundBinding Post
AC SwitchYes
FusingRear Deck
Switched AC OutletsOne at 100 watts
Unswitched AC OutletsOne at 200 watts
Special Option 1RC4 Remote Control
Special Option 2SQA2B

Valuation, Purchases, Parts and Manuals

Physical
Panel Width17 -21/64 inches
Panel Height5 - 25/64 inches
Weight49 lbs, shipped, unit alone 40.2 lbs

Amplifier
RMS Power Per Channel25x4 or 70x2
Total Harmonic Distortion (THD)0.3%
Power Bandwidth20 hz to 20 khz
Intermodulation Distortion (IM)0.3%

FM Tuner
Gyro TuningYes
RF Sensitivity1.9 uV
300 Ohm Binding PostsYes
75 Ohm Binding PostsYes
Ultimate Quieting70 dB @ 50 uV
THD, Stereo0.40%
Capture Ratio1.5 dB
Adjacent Channel Selectivity (Wide or Normal)060 dB
Stereo Separation at 1 kHz40 dB
Mono SwitchYes
Signal Strength MeterYes
Center Tuning MeterYes
Stereo LampYes
FM Mode LampYes
Muting SwitchYes
25 uS Deemphasis Switch (Dolby Associated)On rear deck
Dolby FM Decoding StandardYes - L/r dolby FM adjusts on rear deck
Quadradial Output (FM Discriminator output, unequalized)Yes
Illuminated Dial PointerYes

AM Tuner
Signal Strength MeteringYes
External Ferrite AntennaYes
Antenna binding PostsYes

Preamplifier
Multiple Bass AdjustmentsYes
Multiple Midrange AdjustmentsYes
Multiple Treble AdjustmentsYes
High FilterYes
Gain ControlYes
Loudness ContourSwitch
MonoYes
Quadraphonic DimensionYes
BalanceF-l/r, R-l/r, F/R
Number of Tape MonitorsTwo 4-channel
Auxillary Input SourceYes (quad)
Phono Input SourceYes
Tuner Source InputAM, FM
Source Tape Input (as opposed to a tape monitor)Yes
2nd Source Tape input (as opposed to a tape monitor)Yes
Tape MonitorYes (quad)
2nd Tape monitorYes (quad)
Preamp to Amplifier Jumper(s)front and rear pairs
Dolby TapeYes
Headphone Jack(s)1 pair for quad listening
Speaker Selection NomenclatureMain, Remote (x4)

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