Rotel RB-985 Owner's Manual

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Rotel RB-985 Amplifier Specification

The Rotel RB-985 is a high-performance five-channel power amplifier designed for home theater and high-fidelity audio applications. It delivers robust power output, providing 100 watts per channel into an 8-ohm load, and 150 watts per channel into a 4-ohm load, ensuring ample dynamic range and clarity across all audio channels. The amplifier features a wide frequency response from 15Hz to 100kHz, allowing for accurate reproduction of both deep bass and high treble frequencies. With a total harmonic distortion of less than 0.03%, the RB-985 maintains audio purity, providing clean sound without noticeable distortion even at high volumes.

The RB-985 is equipped with high-quality, gold-plated RCA input connectors to ensure optimal signal transfer and minimize connection-related signal loss. It has a damping factor of 500, which contributes to superior control over speaker movement, resulting in precise and tight bass response. The amplifier's signal-to-noise ratio exceeds 116dB, minimizing noise and ensuring a clear and immersive listening experience.

The unit is built with Rotel's renowned toroidal transformer power supply, which enhances efficiency and reduces electromagnetic interference, contributing to the amplifier's stable performance under demanding conditions. The RB-985's robust construction and high-quality components ensure reliable operation and longevity. Its sleek, understated design allows it to blend seamlessly into any home audio setup. The front panel features a power switch and status indicator lights, providing simple and intuitive operation. The Rotel RB-985 is ideal for audiophiles seeking a powerful and precise multi-channel amplifier to enhance their home theater or music listening environment.

Rotel RB-985 Amplifier F.A.Q.

How do I connect my Rotel RB-985 Amplifier to a home theater system?

To connect the Rotel RB-985 Amplifier to a home theater system, use RCA cables to connect the pre-out outputs from your AV receiver to the amplifier's inputs. Ensure that each channel is matched correctly. Then, connect the speakers to the amplifier's speaker terminals.

What should I do if my Rotel RB-985 Amplifier is not powering on?

First, check the power cable and ensure it is securely connected to both the amplifier and the power outlet. Verify that the outlet is functioning by testing it with another device. If the issue persists, check the fuse in the amplifier and replace it if necessary.

How can I troubleshoot audio distortion issues with my Rotel RB-985 Amplifier?

Ensure all connections are secure and that the input cables are not damaged. Check the speaker wires for any shorts or loose connections. If distortion continues, try connecting the amplifier to a different audio source to determine if the problem lies with the amplifier or the original source.

Can I use the Rotel RB-985 Amplifier for bi-amping my speakers?

Yes, the Rotel RB-985 Amplifier can be used for bi-amping. You will need to remove the jumper cables from the speaker terminals and use separate channels of the amplifier to power the high and low frequency terminals of the speakers.

What is the recommended maintenance routine for the Rotel RB-985 Amplifier?

Regularly dust the exterior with a soft, dry cloth. Ensure that ventilation openings are not blocked. Periodically inspect all connections for tightness and signs of wear. Have the amplifier serviced by a professional every few years to maintain optimal performance.

How do I reset the Rotel RB-985 Amplifier to factory settings?

The Rotel RB-985 Amplifier does not have a software reset function as it is an analog device. For any issues, manually check the connections and settings. If necessary, disconnect the power for a few minutes to reset the system.

Why does my Rotel RB-985 Amplifier shut down unexpectedly?

This could be due to overheating, which may result from poor ventilation. Ensure the amplifier is placed in a well-ventilated area. It may also shut down if there is a short circuit in the speaker wires or if the impedance is too low. Check all connections and speaker specifications.

How can I improve the sound quality of my Rotel RB-985 Amplifier?

Ensure high-quality cables are used and that all connections are secure. Position the speakers correctly in the room and consider room acoustics. Upgrading source components and maintaining the amplifier can also enhance sound quality.

What precautions should I take when moving my Rotel RB-985 Amplifier?

Ensure the amplifier is powered off and unplugged. Disconnect all cables and accessories. Use the original packaging for transport if possible, or ensure it is well-padded to protect from shocks and vibrations.

Is it possible to bridge the channels on a Rotel RB-985 Amplifier for more power?

The Rotel RB-985 is not designed to be bridged. Attempting to bridge the channels can damage the amplifier or connected equipment. Consult the user manual for appropriate usage guidelines.