1. Introduction
The Onkyo M-5010 is a 2-channel power amplifier designed to enhance your audio system. It features WRAT (Wide Range Amplifier Technology) with Three-Stage Inverted Darlington Circuitry for reduced distortion and clear audio reproduction. This amplifier is suitable for augmenting multi-zone capabilities in home theaters or enabling advanced surround sound features when paired with compatible Onkyo A/V receivers. Its robust construction includes a thick anti-resonant metal chassis with an aluminum faceplate, an aluminum heat sink, large 10,000 µF capacitors, and quality copper bus bars for superior grounding, all contributing to improved responsiveness and clarity.
Key Features:
- 75 W/Channel (8 Ohms, 1 kHz, 0.08% THD, 2 Channels Driven, FTC)
- Three-Stage Inverted Darlington Circuitry to Reduce Distortion
- Delivers Multi-Zone Audio with Selected Onkyo A/V Receivers (Damping Factor: 60 (Front, 1 kHz, 8 Ohms))
- Daisy-Chain with Additional M-5010s for Bi-Amping or Multi-Zone Audio
- Impedance Selector Switch (4-8 Ohms and 8-16 Ohms)
- Signal-to-Noise Ratio: 110 dB (Line, IHF-A)
2. What's in the Box
- Onkyo M-5010 2-Channel Amplifier
3. Setup
3.1 Front Panel Overview
The front panel provides essential controls and indicators for basic operation.

Figure 1: Front view of the Onkyo M-5010 Amplifier. This image displays the sleek black finish, the power/standby button on the left, a central display area, and a large volume knob on the right.
3.2 Rear Panel Connections
The rear panel houses all input and output terminals for connecting your audio components.

Figure 2: Rear view of the Onkyo M-5010 Amplifier. This image highlights the speaker binding posts (A and B), RCA line inputs and outputs, optical and coaxial digital inputs, a subwoofer pre-out, FM/AM antenna connections, and a 12V trigger input/output.
3.2.1 Speaker Connections
- Speaker A/B: Connect your main speakers to the SPEAKER A terminals. If using a second pair of speakers (e.g., for another room or bi-amping), connect them to the SPEAKER B terminals. Ensure correct polarity (+ to + and - to -).
- Impedance Selector: Set the impedance selector switch on the rear panel to match the impedance of your speakers (4-8 Ohms or 8-16 Ohms).
3.2.2 Audio Source Connections
- Line In: Connect analog audio sources (e.g., CD player, turntable with phono preamp) using RCA cables.
- Optical/Coaxial In: Connect digital audio sources (e.g., TV, Blu-ray player) using optical or coaxial cables.
- Subwoofer Pre-Out: Connect an active subwoofer to this output using an RCA cable for enhanced bass.
- Line Out: Use this to connect to another amplifier or recording device.
- FM/AM Antenna: Connect the supplied FM/AM antennas for radio reception.
3.2.3 Control Connections
- 12V Trigger In/Out: Use a 3.5mm mono cable to connect to compatible devices (e.g., an A/V receiver) for synchronized power on/off. The trigger switch can be set to ON, OFF, or AUDIO (auto-detects audio signal).
4. Operating Instructions
4.1 Power On/Off
- Press the ON/STANDBY button on the front panel to power the amplifier on or off.
- If the 12V trigger is set to AUDIO, the amplifier will automatically power on when an audio signal is detected and enter standby when no signal is present for a period.
4.2 Input Selection
- Use the INPUT SELECTOR buttons on the front panel to choose your desired audio source (e.g., CD, Phono, Network, Aux, Recorder, Optical 1, Optical 2, Coaxial, Bluetooth).
4.3 Volume Control
- Rotate the large VOLUME knob on the front panel to adjust the overall sound level.
4.4 Tone and Balance Adjustments
- Use the BASS and TREBLE controls to adjust the low and high frequency response.
- Use the BALANCE controls to adjust the left/right channel balance.
- The DIRECT/TONE button can bypass tone controls for a pure audio signal.
4.5 Speaker A/B Selection
- Press the SPEAKER A/B button to toggle between Speaker A, Speaker B, or both A+B.
4.6 Bluetooth Pairing
- Select the Bluetooth input. The amplifier will enter pairing mode.
- On your mobile device, search for available Bluetooth devices and select
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