Featuring a massive power supply and 140 watts of high current output from each of its five channels.
Marantz sound experts meticulously designed this unit to deliver precise power and accurate musicality.
Ideal for your 5.1 home theater system
The MM7055 power amplifier produces 140 watts per channel (8-ohm, 20Hz – 20kHz, 0.08% THD, 2ch. drive) of high current output from each of its five channels.
In practical terms, the MM7055 is ideal for a “5.1” home theatre system, whether based on a moderately powered receiver or a surround sound processor. Two or more can be used to build an advanced system. A combination with MM7025 or MM8077 is possible.
A massive power supply includes a multiple-secondary EI-core transformer and over 65,000 µF of custom-designed energy storage capacity.
Physically, the MM7055’s output stages mount on an extruded aluminum “thermal tunnel” for efficient heat dissipation.
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 offers excellent value for the money. "
"I do feel that it presents a compelling value to audiophiles who look at more than just rated power when buying an amplifier."
|Current Feedback Topology||Yes|
|Phono EQ: Standard / Current Feedback / Constant Current Feedback||No / No / No|
|Power Transformer: Toroidal / El||No / Yes|
|High Grade Audio Components||Yes|
|Symmetric PCB Layout||No|
|Aluminium extrusion heat sink||Yes|
|Copper Plated Chassis||No|
|Tri Tone Control (Bass / Mid / Treble)||No|
|Balance / Bass / Treble / Loudness||No|
|Linear Drive Power Supply||Yes|
|Liniear volume control||No|
|BI-AMP and Multichannel option||No|
|Input buffer amp (all inputs / CD only)||Yes / No|
|Separate Solid Heat Sinks||No|
|System block shielding: Copper / metal / none||No / No / No|
|Double Layer Bottom Plate||No|
|Low noise LCD display||Yes|
|Low noise LED display||No|
|Power Meter : Analog / Digital||No / Yes|
|Power Amp direct||Yes|
|5mm aluminium top plate||No|
|Phono Input: MM / MC||No|
|Balanced In / Out||5 / No|
|Pre-out / Main-in||No / 5|
|Power Amp Direct IN||No|
|Gold Plated Cinch||No|
|Speaker A / B||No|
|Speaker Terminal: Screw / Marantz / WBT||Yes / No / No|
|Number of terminals||5|
|Floating Control Bus (3.5 mm mono jack x 2)||No|
|Remote Power Control Trigger - In Out||Yes|
|Flasher In / IR Receiver In||Yes / No|
|iPod input (direct / docking station)||No / No|
|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 response||8 Hz-100 kHz (+-3 dB)|
|Total Harmonic Distortion||0.03% (20 Hz - 20 kHz)|
|Input Sensitivity: MM||No|
|Input Sensitivity: MC||No|
|Signal to Noise Ratio: MM/MC||No|
|Input Sensitivity: High level||1.2 V / 22 K|
|Input Sensitivity: Balanced High level||2.4 V / 30 K|
|Signal to Noise Ratio: High level||105 dB|
|Available Colors: Gold / Silver / Black / Silver-Gold||No / No / Yes / No|
|Metal Front Panel||Yes|
|Power Consumption in W||400|
|Standby Consumption in W||0.4|
|Auto Power off||Yes|
|Detachable Power Cable||Yes|
|System Remote Function||No|
|Maximum Dimensions (W x D x H) in mm||440 x 183 x 384|
|Weight in kg||15.2|
Founded in NY by legendary sound master - Saul Marantz.Discover
Explore the design story and influences of Marantz.Discover
See Marantz, hear perfection.Discover
Bringing people closer to the music since 1953.Discover
Discover hidden treasures in music with playlists curated by a select group of artists, producers, and tastemakers.
While the 60s is an oft recognized archetypal decade, few time periods have shaped our modern world as powerfully as the 1980s, especially the early part.
Marantz high-fidelity collections, master-crafted for a flawless and personalized listening experience.
Search by address or area to find
a retailer selling Marantz near you
We’ll be in contact soon - check your inbox!