Marantz MM7055

Marantz MM7055 – 5-Channel Power Amplifier for Home Theater Systems

The Marantz MM7055 is a high-current, multi-channel power amplifier designed to bring refined power to complex audio setups. With 140 W of clean output per channel, advanced current-feedback circuitry, and professional-grade connectivity, it idealizes home theater performance with both precision and durability.

Key Features

• Robust power handling: 140 W per channel (8 Ω), rising to 170 W (6 Ω) for demanding speaker loads
• Massive power supply: Multi-secondary EI-core transformer plus over 65,000 µF of capacitance for unwavering performance
• Current-feedback output: Delivers tight, dynamic response and control even during complex multichannel playback
• Comprehensive I/O: Five balanced XLR and RCA inputs—select between types per channel—with audiophile-grade, gold-plated binding posts for top-tier connections
• Smart cooling: Thermal tunnel and temperature-sensing fan maintain stable operation at full output
• Integrator-friendly: DC trigger and RC-5 remote ports ensure easy system control integration

Customer Benefits

Whether you’re running a classic 5.1 setup or expanding to separate zones, the MM7055 gives you clean, reliable power without distortion. Its advanced engineering gives your speakers the control and energy they need, while remaining quiet and stable—even in high-demand environments.

Quick Specs

• Channels: 5
• Power output: 140 W × 5 (8 Ω, 20 Hz–20 kHz, 0.08 % THD); 170 W × 5 (6 Ω)
• Frequency response: 8 Hz – 100 kHz (±3 dB)
• Distortion: 0.08 % THD (6 Ω, 20 Hz–20 kHz)
• Damping factor: 100
• Signal-to-noise ratio: 105 dB
• Inputs: 5 × balanced XLR and 5 × unbalanced RCA (configurable per channel)
• Control I/O: DC trigger in/out, RC-5 remote in/out
• Cooling: Thermally-engineered tunnel with fan assist
• Construction: Heavy-gauge steel chassis for vibration and EMF shielding
• Power consumption: 660 W (active); 0.2 W (standby)
• Dimensions: 44.0 × 18.3 × 38.4 cm
• Weight: 15.7 kg

What’s in the Box

• Marantz MM7055 power amplifier
• AC power cable
• Remote control cable
• User guide and warranty information

Use Cases / Ideal For

Tailor-made for serious home theaters, audiophile multi-room setups, or dedicated listening zones. The MM7055 delivers audiophile-grade power for front, rear, and theater-grade channels—perfect for both music and movie lovers.

Compatibility

Connects seamlessly with AV preamps, A/V receivers, or surround processors. Balanced and unbalanced inputs offer flexible integration. DC trigger and remote ports enable individual power control with Marantz or custom control systems.

Pros & Cons

✅ Pros:

• Powerful, clean 140 W output on all five channels
• Current-feedback stage delivers precise control and musicality
• Heavy-duty build with thermal management for reliable endurance
• Flexible I/O and control options for seamless system integration

⚠️ Cons:

• Large form factor—requires sufficient rack or shelf space
• No onboard volume control or display—requires preamp or processor for adjustments

The Marantz MM7055 is the go-to choice for multi-channel power needs, offering performance, flexibility, and durability in one refined package.