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Marantz Model 7tr Preamp

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Front View
Image Attribution: Freddy Sangild
Date: July 5th, 2000

Designed inUSA
Manufactured InUSA
First Year1967
Years Manufactured1967-1970
Last Year1970
Blue FaceYes
Tube DesignNo
Chassis GroundBinding Post
AC SwitchYes
Switched AC Outlets5
Unswitched AC Outlets1
Power Consumption9 watts

Weight9 lbs

THD< .05% @ 1v RMS
IMD< .05% @ 3v RMS
Single Bass AdjustmentYes
Single Treble AdjustmentYes
High Filter9 kHz, 5kHz
Low Filter50 Hz, 100 Hz
Channel ReverseYes
Number of Tape MonitorsTwo, 1 FP
Auxillary Input SourceYes
2nd Auxillary Input SourceYes
Phono Input SourceYes
2nd Phono Input SourceYes
Cartridge Type Selectionold 78, RIAA, old Col LP
Tuner Source InputYes
Source Television InputYes
Source Microphone InputYes
Source Tape Input (as opposed to a tape monitor)Yes (tape head)
2nd Source Tape input (as opposed to a tape monitor)yes (front panel)
Tape MonitorYes
Scope Output(s)Yes
Center Channel OutputYes
Center Channel Gain ControlYes
Tape EqualizationYes, L/R separate
Headphone Jack(s)Yes (600 ohms or more, obsolete)
Hum and Noise100 dB below input level
Signal to Noise Ratio100 dB
Frequency Response 20 Hz to 20 KHz +/- 0.5 dB
Rated Output Level1v RMS
Maxiimum Output Level3v RMS

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