RMB-1587MKII - Receiver ROTEL - Free user manual and instructions
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| Brand | Rotel |
| Model | RMB-1587MKII |
| Product type | Multichannel power amplifier (7 channels) |
| Number of channels | 7 |
| Output power (8 ohms, 7 channels) | 155 W/channel |
| Output power (4 ohms, 7 channels) | 250 W/channel |
| Output power (4 ohms, 2 channels) | 335 W/channel |
| Total harmonic distortion | < 0.03% |
| Frequency response | 10 Hz – 100 kHz (0, -0.3 dB) |
| Damping factor | 330 (1 kHz, 8 ohms) |
| Signal-to-noise ratio | 111 dB (A-weighted) |
| Audio inputs | 7 unbalanced RCA inputs, 7 balanced XLR inputs |
| Speaker outputs | 7 pairs of binding posts (bare wire, spade, banana) |
| Input impedance (unbalanced) | 12 kΩ |
| Input impedance (balanced) | 50 kΩ |
| Input sensitivity (unbalanced) | 1.61 V |
| Input sensitivity (balanced) | 3.4 V |
| Gain | 26.6 dB |
| Mains power | 120 V / 60 Hz (US) or 230 V / 50 Hz (EU) |
| Power consumption | 1400 W |
| Dimensions (W x H x D) | 431 x 237 x 456 mm |
| Weight | 37.6 kg |
| Additional features | 12 V trigger input/output, thermal and overload protection, cooling fans (Auto/Off) |
| Maintenance | Clean with a dry cloth or vacuum cleaner |
| Safety | Double electrical insulation; do not open; do not expose to moisture |
| Spare parts and repairability | No user-serviceable parts; contact a qualified professional |
Frequently Asked Questions - RMB-1587MKII ROTEL
How to connect speakers to the amplifier?
Use quality speaker cables. Disconnect all devices before connecting. The binding posts accept bare wire, spade terminals, or banana plugs. Observe polarity (red terminal on amp to red terminal on speaker).
What to do if the amplifier does not turn on?
Check that the mains outlet is powered and the power cord is properly connected. If the power LED remains off, the internal fuse may be blown. Contact an authorized Rotel dealer for replacement.
How to interpret the flashing of the protection LED?
The protection LED flashes when the thermal or overload protection circuit has activated. Turn off the power, let the unit cool down, then turn it on again. If the problem persists, check the speaker connections (short circuit) and ventilation.
Can I use 4 ohm speakers with the RMB-1587MKII?
Yes, the amplifier is designed for 4 to 8 ohm speakers. It delivers 250 W per channel into 4 ohms (7 channels). Make sure your speakers can handle this power.
How to clean the amplifier?
Unplug the unit before cleaning. Use a dry, soft cloth or a vacuum cleaner to dust the ventilation grilles. Never use liquids or chemicals.
What is the function of the 12V trigger inputs/outputs?
The trigger input allows automatic power on/off of the amplifier via a 12V signal from a preamplifier. The trigger output passes this signal to other compatible devices.
Can I connect both RCA and XLR inputs?
No, only one type of input should be used at a time. Never connect both simultaneously. Choose either RCA or XLR for each channel.
What output power can I expect from this amplifier?
The RMB-1587MKII delivers 155 W per channel into 8 ohms (7 channels) and 250 W per channel into 4 ohms (7 channels). In stereo configuration (2 channels) into 4 ohms, it reaches 335 W per channel.
How to adjust the cooling fans?
A switch on the rear allows you to choose between 'Fan Off' (fans stopped) and 'Fan Auto' (automatic operation based on temperature). For intensive use, it is recommended to leave the setting on Auto.
What to do during prolonged absence?
It is advisable to unplug the amplifier from the mains during long periods of inactivity to avoid any risk related to standby power consumption or power surges.
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