Marantz sound experts meticulously designed this unit to deliver precise power and accurate musicality.Physically, the MM7055’s output stages mount on an extruded aluminum “thermal tunnel” for efficient heat dissipation.
In practical terms, the MM7055 is ideal for a “5.1” home theater system, whether based on a moderately powered receiver or a surround sound processor.
A massive power supply includes a multiple-secondary EI-core transformer and over 65,000 µF of custom-designed energy storage capacity.
Balanced inputs and single-ended RCA inputs are both supported, and you can choose either type of input for each channel, individually, for easy and flexible connectivity. Audiophile grade, gold-plated four-way binding post speaker terminals insure tight connections to your choice of speaker wire.
The MM7055 is a refined amplifier with ample power for the most demanding home theater setups and delivers exceptional musical clarity.
Classic Design
5 Channels
140 Watts per Channel
Class A/B Amplifier
Details & Specifications
Features
Channels5
Current Feedback TopologyYes
Phono EQ: Standard / Current Feedback / Constant Current FeedbackNo / No / No
HDAM versionNo
Power Transformer: Toroidal / ElNo / Yes
High Grade Audio ComponentsYes
Customised ComponentsYes
Symmetric PCB LayoutNo
Aluminium extrusion heat sinkYes
Copper Plated ChassisNo
Tri Tone Control (Bass / Mid / Treble)No
Balance / Bass / Treble / LoudnessNo
Others
Linear Drive Power SupplyYes
CCNENo
Liniear volume controlNo
BTL PossibilityNo
BI-AMP and Multichannel optionNo
Choke inputNo
Shottky diodesNo
Input buffer amp (all inputs / CD only)Yes / No
Separate Solid Heat SinksNo
System block shielding: Copper / metal / noneNo / No / No
Double Layer Bottom PlateNo
Low noise LCD displayYes
Low noise LED displayNo
Power Meter : Analog / DigitalNo / Yes
Source DirectNo
Power Amp directYes
Standby ModeYes
5mm aluminium top plateNo
Inputs Outputs
Audio InputsNo
Phono Input: MM / MCNo
Audio OutputsNo
Balanced In / Out5 / No
Pre-out / Main-inNo / 5
Power Amp Direct INNo
Gold Plated CinchNo
Speaker A / BNo
Speaker Terminal: Screw / Marantz / WBTYes / No / No
Number of terminals5
D-BusYes
Floating Control Bus (3.5 mm mono jack x 2)No
Remote Power Control Trigger – In OutYes
Flasher In / IR Receiver InYes / No
Headphone OutNo
iPod input (direct / docking station)No / No
Specifications
Power Output (8 / 4 Ohm RMS)140 W / 170 W (6)
Power Output (8 / 4 Ohm DIN)No
Power Output (8 / 4 Ohm IHF)No
Bridged Power Output (8 Ohm RMS)No
Frequency response8 Hz-100 kHz (+-3 dB)
Total Harmonic Distortion0.03% (20 Hz – 20 kHz)
Damping Factor100
Input Sensitivity: MMNo
Input Sensitivity: MCNo
Signal to Noise Ratio: MM/MCNo
Input Sensitivity: High level1.2 V / 22 K
Input Sensitivity: Balanced High level2.4 V / 30 K
Signal to Noise Ratio: High level105 dB
General
Available Colors: Gold / Silver / Black / Silver-GoldNo / No / Yes / No
Metal Front PanelYes
Power Consumption in W400
Standby Consumption in W0.4
Auto Power offYes
Detachable Power CableYes
Remote ControlNo
System Remote FunctionNo
Maximum Dimensions (W x D x H) in mm440 x 183 x 384
