Marantz Model 2270 Receiver
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Front View
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Rear View
Image Attribution: Michael Sobel
Date: July 29th, 1999
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Service Manual
EBay Auction #1209407708
Date: January 21st, 2001
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| General |
| Retail Price | 549.95 |
| Designed in | USA |
| Manufactured In | USA (Sun Valley), later in Japan |
| First Year | 1971 |
| Last Year | 1975 |
| Wood Case | WC-22 |
| Blue Face | Yes |
| Channels | Two |
| Speaker Connections | Two Pairs |
| Chassis Ground | Binding Post |
| AC Switch | Yes |
| Switched AC Outlets | One @ 100 watts |
| Unswitched AC Outlets | One @ 200 watts |
| Power Consumption | 500w max, 38 @ idle |
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| Physical |
| Width | 16 7/8 |
| Height | 5 |
| Depth | 14 |
| Weight | 38.5 lbs, 49.5 packed |
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| Amplifier |
| RMS Power Per Channel | 70 |
| Damping Factor @ Load Impedance | 45 |
| Total Harmonic Distortion (THD) | 0.3% |
| Power Bandwidth | 7 Hz - 50 kHz |
| Intermodulation Distortion (IM) | 0.3% |
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| FM Tuner |
| Gyro Tuning | Yes |
| RF Sensitivity | 2.3 uV |
| 300 Ohm Binding Posts | Yes |
| 75 Ohm Binding Posts | Yes |
| 50 dB quieting sensitivity, Stereo | 50 uV |
| Ultimate Quieting | 57 dB @ 50 uV |
| THD, Mono | 0.20% |
| THD, Stereo | 0.30% |
| Frequency Response | 50-15000 +/- 1 dB |
| Capture Ratio | 1.9 dB |
| Alternate Channel Selectivity (wide or normal) | 080 dB |
| Stereo Separation at 1 kHz | 40 dB |
| Mono Switch | Yes |
| Signal Strength Meter | Yes |
| Center Tuning Meter | Yes |
| Multiplex Filter (Hi-Blend) | Yes |
| Attenuator | 20dB on rear |
| Stereo Lamp | Yes |
| FM Mode Lamp | Yes |
| Multipath Listen | Yes |
| Multipath Metering | Yes |
| Muting Switch | Yes |
| Muting Adjustment | Rear deck |
| Quadradial Output (FM Discriminator output, unequalized) | Yes |
| Illuminated Dial Pointer | Yes |
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| AM Tuner |
| Signal Strength Metering | Yes |
| External Ferrite Antenna | Yes |
| Antenna binding Posts | Yes |
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| Preamplifier |
| Multiple Bass Adjustments | Yes |
| Multiple Midrange Adjustments | Yes |
| Multiple Treble Adjustments | Yes |
| High Filter | Yes |
| Low Filter | Yes |
| Gain Control | Yes |
| Loudness Contour | Yes |
| Mono | Yes (Left, Right) |
| Muting | Yes |
| Balance | Knob |
| Number of Tape Monitors | Two |
| Tape to Tape Dubbing | Yes, plus 3rd deck @ front panel |
| Auxillary Input Source | Yes |
| Phono Input Source | Yes |
| 2nd Phono Input Source | Yes |
| Illuminated Source Indicators | yes |
| Tuner Source Input | Yes (AM, FM sources) |
| Source Tape Input (as opposed to a tape monitor) | Yes |
| 2nd Source Tape input (as opposed to a tape monitor) | Yes |
| Tape Monitor | Yes |
| 2nd Tape monitor | Yes |
| Preamp to Amplifier Jumper(s) | yes |
| Headphone Jack(s) | Yes |
| Speaker Selection Nomenclature | Main, Remote |
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