Cyrus Audio 80 PWR

The 80 PWR is a power amplifier. It has no preamplifier stage, no DAC, no streaming — just an amplifier circuit built to handle whatever a preamplifier or integrated amplifier sends it, and enough power to do so with authority. That focus is the point.

It occupies a specific role in the Cyrus range. Paired with the 80 AMP's analogue preamplifier output, it turns the 80 AMP into a pre-power system — adding a dedicated amplification stage for those who want more control, more headroom, or more drive than a single integrated amplifier can provide. It works equally well with any preamplifier that offers a balanced XLR output.

The headline capability is bridged mono operation. Run as a stereo amplifier, the 80 PWR delivers 200W per channel. Bridge to mono and that becomes 300W into a single channel — a level of power that will drive virtually any loudspeaker to any realistic listening level without the amplifier ever approaching its limits.

Class A/B, Stereo and Bridged Mono

The 80 PWR operates in Class A/B. The output stage runs in Class A for low-level signals, where the ear is most sensitive to distortion, switching to Class B for higher power demands. The result is an amplifier that combines the sonic qualities of Class A operation at the signal levels that matter most with the practicality and efficiency of Class A/B at higher outputs.

Switching between stereo and bridged mono operation is built into the design. In stereo, 200W per channel gives the 80 PWR sufficient headroom to drive demanding loudspeakers without compression — most loudspeakers at most listening levels will never ask the 80 PWR to work hard. In bridged mono, the full 300W is directed to a single channel, which makes sense for those running a pair of 80 PWR units in a fully separated mono configuration.

Balanced XLR Inputs

The 80 PWR accepts balanced XLR inputs. Balanced connectivity is the correct choice for a power amplifier — it rejects common-mode noise picked up along the interconnect cable between preamplifier and power amplifier, and it is the standard connection for professional and high-end domestic systems. For those running the 80 PWR from the Cyrus 80 AMP's balanced outputs, the connection is direct and correct.

System Integration

The 80 PWR is a natural partner for the Cyrus 80 AMP — using the 80 AMP as a preamplifier and streamer, with the 80 PWR handling amplification. It also pairs with the Cyrus Classic AMP used in preamplifier mode, or with any balanced preamplifier in the wider system.

For those already running a Cyrus Classic Power and considering the step up, the 80 PWR's bridged mono capability and higher power output represent a meaningful change in what is available to the loudspeakers.

Technical Specifications

Who Is It For?

The 80 PWR is for those running a separate preamplifier who want a dedicated power amplifier with genuine headroom — enough power to drive demanding loudspeakers without strain, and the option of bridged mono operation for those who want the maximum available from a single chassis. It is the natural partner for the Cyrus 80 AMP, and it will work with any preamplifier offering balanced XLR outputs.

It is not the right choice for those who need an integrated amplifier — the 80 AMP handles that role. The 80 PWR is a single-purpose component for a system that has already separated its control and amplification stages, and for those who take that separation seriously.

Buying from Martins Hi-Fi

Martins Hi-Fi has been in Norwich since 1968. Elizabeth Gould runs the business today, and we stock only brands we have heard properly and stand behind.

The 80 PWR is available to hear in our Norwich showroom, partnered with appropriate Cyrus preamplifier and source components so you can assess it in a real system context.

When you get in touch, you'll be speaking with Dave, Chris and Tim — experienced specialists who can advise on this product and your whole system.

Contact us at info@martinshifi.co.uk, call 01603 627010, or WhatsApp on 07554 687137. You can read more about how we work on our Why Martins Hi-Fi page. We are at 85–91 Ber Street, Norwich, NR1 3EY.