Product Description
The MM7025 2-Channel Power Amplifier from Marantz is designed to deliver powerful stereo sound. This amplifier features a discrete amplification design for robust sonic delivery. Each channel in the amplifier delivers up to 140W of power at 8 ohms and 170W at 6 ohms. It is also equipped with balanced and unbalanced input options, allowing you to connect a wide variety of pre-amplifiers and processors. This amplifier is suitable for use in dedicated 2-channel audio systems or as an addition to multi-channel surround systems.
- Current Feedback Discrete Power Amplifier
- This model is equipped with a current feedback amplifier section that uses the same push-pull circuit found in Marantz’s SM-11S1 Hi-Fi power amplifier. This amp is designed to provide increased operating stability, and high-speed, wide-ranging, high-density playback. The current/voltage conversion amplification section in the latter part of the power amp is equipped with a Wilson current mirror circuit that amplifies to the high sound range with low distortion.
- Large Power Transformer
- The final stage of the power amp is equipped with the same LAPT (high-efficiency power transistor) that is installed in the SM-11S1 Marantz Hi-Fi power amp, providing improved instant power supply capability. The power section is equipped with a large-sized transformer. As one of the essential parts of the power section, this unit is equipped with a notable Marantz 15,000 μF / 71 V×2 block condenser. These improvements to the power supply are engineered to provide a powerful and presence-filled sound.
- High-Quality Design
- This amplifier is equipped with a chimney-shaped heat sink to efficiently process the heat emitted from each channel along with quiet cooling fans. A high-sensitivity temperature sensor IC is used to control the cooling fans, adjusting the rotation speed to match the amount of heat generated by the amp.
- Balanced and Unbalanced Inputs
- For installation flexibility and maximum compatibility, each channel on this amplifier is equipped with balanced and unbalanced inputs.
- Custom-Installation-Ready
- This amplifier has an IR flash input that supports custom installations and DC trigger input and output terminals.
- Remote Power Control
- When a Marantz AV pre-amplifier/process such as the AV8003 or AV7005 is connected to this unit, this amplifier’s power can be switched On/Off together with the pre-amplifier’s power supply. This connection is designed to reduce sonic interface as much as possible.
- Additional Features
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- Marantz reference-grade filter capacitors and high-speed output transistors
- Gold-plated, high-grade loudspeaker terminals
- Flasher input, DC trigger input/output, and RC-5 remote control connectivity
- Detachable power cord (IEC320 2-pin type)
- Porthole display with blue illumination accent
- High instantaneous peak current design
- Low impedance continuous drive capability
Marantz MM7025 Specs
Channels 2 Power Output 8 ohms Rated: 140 W per channel (20 Hz to 20 kHz, THD = 0.08%, 2-channels driven) 6 ohms Rated: 170 W per channel (20 Hz to 20 kHz, THD = 0.08%, 2-channels driven)
6 ohms Maximum: 210 W per channel (1 kHz, 2-channels driven)
Output Bandwidth 5 Hz to 40 kHz (8 ohm load, 0.09 %) Frequency Response 8 Hz to 100 kHz (1 W, 8 ohms) (± 3 dB) Damping Factor 100 Input Sensitivity/Impedance 1.2 V / 22 k ohms (unbalanced) 2.4 V / 30 k ohms (balanced)
Signal-to-Noise Ratio 105 dB (IHF-A) Voltage Amplification Level 29 dB Input & Output 2 x Balanced inputs 2 x Unbalanced inputs
2 x Speaker channels
1 x IR flasher input
1 x DC control input
1 x DC control output
1 x Remote control input
1 x Remote control output
Switch Balanced and unbalanced Supply Voltage 120 VAC, 60 Hz Power Consumption Operational: 330 W Standby: 0.2 W
Dimensions (WxHxD) 17.3 x 5.0 x 13.9″ / 440.0 x 126.0 x 352.0 mm Weight 23.8 lb / 10.8 kg Packaging Info Package Weight 28.7 lb Box Dimensions (LxWxH) 21.4 x 17.6 x 8.9″
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