Marantz MM7055 5 Channel Power Amplifier


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From its sculptured front panel to its high quality loudspeaker binding-post s, the MM7055 five channel power amplifier brings Marantz sound quality to virtually any music or home theater system. Using technologies originally developed for the exclusive Marantz Reference Series, this flexible amplifier boasts many possible uses, all united by the singular quest for perfection that has long distinguished Marantz.



Features of the Marantz MM7055 :

  • 5 channel power amplifier
  • Porthole Display with Blue Illumination Accent
  • 140W/ch (8 ohms), 170W( 6 ohms) RMS Power (20Hz-20kHz)
  • RCA and balanced XLR inputs
  • “Current Feedback” Amplifier Output Stage
  •  Custom Sound Tuning
  • Marantz Reference-Grade Filter Capacitors and High-Speed Output Transistors
  • Gold Plated, High Grade Loudspeaker Terminals
  • Flasher Input/DC Trigger In/Out /RC-5 Remote Control

The MM7055 power amplifier produces 140 watts of high current output from each of its five channels. This is “real world” power, too, measured across the
full audio bandwidth (20 Hz – 20 kHz) at 8 ohms with 0.08% Total Harmonic Distortion. Among other attributes, this means the MM7055 is capable of long-term power delivery into low impedance speakers.

A massive power supply includes a multiple-secondary EI-core transformer and over 65,000 µF of custom-designed energy storage capacity to meet the demands of today’s current-hungry loudspeaker designs. Balanced inputs and single-ended RCA inputs are both supported, and audiophile grade, gold-plated four
-way binding posts insure tight connections to your choice of speaker wire.

The MM7055 includes input and output jacks for DC “trigger” pulses as well as RC-5 jacks for total remote control convenience, even with legacy Marantz

The chassis itself is heavy gauge steel for maximum isolation from external vibration as well as electromagnetic and radio frequency interference. And chassis
depth is less than 14½” so the MM7055 will fit quite nicely on a shelf, in a cabinet, or in a conventional system rack.

Power. Functionality. Dependability. And classic good looks. The MM7055 is, simply speaking, a Marantz.

Channels: 5
Current Feedback Topology: Yes
Power Transformer: El
High-Grade Audio Components: Yes
Customised Components: Yes
Aluminium extrusion heatsink: Yes

Power Output (8/6 Ohm RMS): 140/170 Watts
Frequency Response: 8Hz-100kHz
Total Harmonic Distortion: 0.03%
Damping Factor: 100dB
Input Sensitivity: High level: 1.2V/22kohm
Input Sensitivity: Balanced High level: 2.4V/30kohm
Signal to Noise Ratio: High level: 105dB


Linear Drive Power Supply: Yes
Input Buffer Amp: All inputs
Power Amp Direct: Yes
Standby mode: Yes


Balanced In/Out 5 / 0
Pre-Out/Main In 0 / 5
Power Amp Direct In: Yes
Speaker terminal: Screw
Number of terminals: 5
Marantz remote bus: Yes
Remote power control (Trigger In/Out): Yes


Colour: Black
Metal Front Panel: Yes
Power Consumption: 440W
Standby Consumption: 0.4W
Auto Power-off: Yes
Detachable Power Cable: Yes
Maximum Dimensions (W x D x H): 440 x 384 x 184.5 mm
Weight: 15.7kg

Additional information

Weight 17 kg
Carton Dimensions 54 × 28 × 48 cm