ONKYO: M 5000

M5000 – Power Amplifier | ONKYO



Thrill to the Visceral Power of Stereo

Music, when you hear it in all its glory, has the power
to lift the spirits and transport you into another realm. Driving you
there in audiophile style is Onkyo’s newest hi-fi power amplifier, the
M-5000R. Signal quality on the M-5000R is meticulously preserved by new
AWRAT technology, while three-stage inverted Darlington circuitry
provides extremely efficient power output. Massive twin toroidal
transformers and four 27,000 μF capacitors work to stabilize the power
supply and current, respectively. And to minimize errors in stereophonic
playback, the amplifier incorporates a totally symmetrical alignment of
power devices for left and right channels.

AWRAT (Advanced Wide Range Amplifier Technology)

The M-5000R employs a host of proprietary Onkyo technologies to ensure optimal audio performance.

1. DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)
Since the advent of digital audio, signal-to-noise
ratios have improved dramatically. However, the S/N ratio reflects
static noise only, and takes no account of another type of noise that
occurs as the byproduct of sound reproduction—dynamic noise. To reduce
this type of noise, Onkyo has developed DIDRC technology for use in our
hi-fi components. Despite being beyond the normal range of human
hearing, frequencies above 100 kHz are susceptible to clock pulse and
other forms of distortion from digital devices. Such distortion in the
super high frequency range can generate “beat interference”, which in
turn affects the character or atmosphere of the original sound. By
improving linearity and reducing distortion in the super-high frequency
range, Onkyo’s new DIDRC technology effectively reduces perceptible

2. Low Negative-Feedback Design
Too much NFB makes a system susceptible to
counter-electromotive force from the speakers, resulting in a drop in
perceived sound quality. To avoid this, Onkyo focuses on improving the
frequency response and reducing distortion, without relying so much on

3. Closed Ground-Loop Circuits
The M-5000R employs a sophisticated closed-circuit
design in which each circuit has a separate link to the power supply.
This helps to cancel individual circuit noise and keep the ground
potential free of distortion.

4. HICC (High Instantaneous-Current Capability)
Handling current loads up to 150 amperes, HICC
enables an amplifier to immediately cancel the speakers’ reflex energy
and instantaneously send out the next signal. The same high current
required to achieve this also supports the amplifier’s ability to handle
speaker impedance fluctuations.

5. Symmetrical Twin-Monaural Construction
Power devices for the left and right channels of the
M-5000R are aligned symmetrically. Each channel has the same electrical
and structural design, and signal pathways are uniform in length. This
helps to minimize errors in stereophonic playback.

Quad Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry

Three-stage inverted Darlington circuitry brings
greater efficiency to the M-5000R power amp by employing a low-NFB
design to maintain voltage stability and enhance transient response.
Extremely sensitive to oscillations, this circuitry requires very
advanced control technology in order to be incorporated into the
amplifier. Breaking further new ground, the M-5000R employs two extra
transistors for each channel in a “quad push-pull” design that
significantly enhances amplification power.

Audiophile-Quality Parts

The M-5000R incorporates two massive toroidal
transformers that reduce magnetic flux leakage, improve efficiency, and
keep the power supply stable. Also on-board are a sub-transformer and
four 27,000 microfarad capacitors that work to make the current
significantly smoother. Gold-plated, machined solid brass terminals
ensure an extremely clean connection.


AWRAT (Advanced Wide Range Amplifier Technology)

DIDRC (Dynamic Intermodulation Distortion Reduction Circuitry)

Quad Push-Pull Amplification Design with Three-Stage Inverted Darlington Circuitry

Symmetrical Layout of L/R Channels

Two Massive Toroidal Transformers with Sub Transformer

Four Large 27,000 μF Capacitors

Separate Anti-Vibration Aluminum Panels for Top, Front, and Sides

New Circuit Board Construction to Reduce Vibration

BTL (Bridged Transless) Capability

Balanced XLR Input for Monaural Amplification in BTL Mode

Gold-Plated, Machined Solid Brass RCA Inputs

Gold-Plated Large Speaker Posts

12 V Trigger Input and Output

Extra-Large Fast-Response Peak Watt Meters



ONKYO Australia - ONKYO Receivers, Amplifiers & More

Shop all products ONKYO, including ONKYO Receivers, ONKYO Amplifiers and much more. RIO Sound and Vision stock the largest range of ONKYO products, available in-store and online. Free delivery Australia wide. ONKYO products provide high quality products for your home theatre or surround sound system. All of RIO Sound and Vision's products come with a full Australian 3 year warranty. As the largest ONKYO dealer in Australia, with over 25 years in the Vision and HiFi industry, RIO Sound and Vision can tailor your new ONKYO system with ease and affordability.

Additional information

Price Bracket


Power Output: 170 W/Ch at 4 Ohms, 1 kHz, 1%, 2 Channels Driven, IEC

Frequency Response: 10 Hz–100 kHz/0 dB, -1 dB (1 W)

S/N Ratio: 110 dB (RCA, IHF-A)

WHD: 435 x 187.5 x 432.5 mm

Weight: 23.5 kg




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