How to troubleshoot no sound from Marantz Amplifier speakers?
If you're not getting any sound from the speakers connected to your Marantz Amplifier, verify the speaker connections and the connections to other devices. Also, make sure that the input selector matches the input connector (BALANCED or UNBALANCED) of the connected device.
How to fix a Marantz Amplifier that won't turn on?
If your Marantz Amplifier's power does not switch on, or it switches off immediately after being switched on, ensure that the power plug is correctly inserted into the wall socket. If the protective circuit has operated, remove the power plug from the wall socket and wait for at least one minute before re-inserting it.
How to troubleshoot no sound from Marantz Amplifier?
If there is no sound from the speakers connected to your Marantz Amplifier, first check the speaker connections and the connections to the other devices. Also, ensure that the input selector matches the input connector (BALANCED or UNBALANCED) of the connected device.
What to do if Marantz MM7025 Amplifier switches off with flashing standby indicator?
If your Marantz Amplifier suddenly switches off during use and the STANDBY indicator flashes quickly while the protection indicator flashes at a slower rate, the protective circuit has been activated. Unplug the amplifier from the wall socket, carefully re-examine the unit's installation, and inspect the speaker cable connections. If the problem persists after switching the power back on, contact the Marantz Service Center.
General| Output level | 2.4 mV |
|---|---|
| Damping factor | 100 |
| Amplifier class | - |
| Frequency range | 20 - 20000 Hz |
| Output impedance | 30000 Ω |
| Input sensitivity | 1.2 mV |
| Audio output channels | 2.0 channels |
| Peak power per channel | 170 W |
| Signal-to-Noise Ratio (SNR) | 105 dB |
| Total Harmonic Distortion (THD) | 0.03 % |
| RMS power output per channel (8 Ohm) | 140 W |
| AC (power) in | Yes |
| Audio (L/R) in | 2 |
| Line inputs (RCA) | 1 |
| Speakers connectivity type | XLR |
| Material | Metal |
| Cooling type | Passive |
| Product color | Black |
| Connectivity technology | Wired |
| Power consumption (standby) | 0.4 W |
| Power consumption (typical) | 220 W |
Weight and Dimensions| Depth | 350 mm |
|---|---|
| Width | 440 mm |
| Height | 126 mm |
| Weight | 10500 g |
Warning about opening the unit and user-serviceable parts.
Warning against exposing the appliance to rain or moisture.
Caution against touching hot surfaces, especially marked areas.
Essential safety advice for operating the Marantz amplifier.
Important checks before turning the power switch on.
Steps to power on the amplifier from standby.
Steps to put the amplifier into standby mode.
How to enable and use the automatic standby mode.
Detailed technical specifications for the MM7055.
Detailed technical specifications for the MM7025.
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