Musical Fidelity M6x 250.5 Multichannel Amplifier

Musical Fidelity M6x 250.5 Multichannel Amplifier

M6x 250.5 is a 5-channel Class A/B power amplifier built to take a home cinema beyond what a soundbar can deliver, letting you easily create a powerful 5.1 home cinema setup (an active subwoofer is powered separately). It's built modular, with one 250W Class A/B amplifier stage per channel across all 5 channels, driven by a super-silent audiophile power transformer for a high dynamic range and detailed soundstage. A sophisticated heat sink design means no fan is needed, so the amplifier runs completely silent even under heavy load. Sits in the middle of the M6x home theater range, between the M6x 250.4/2 and the M6x 250.11. As an authorized Musical Fidelity dealer in Toronto, Canada, Vinyl Sound can help you plan a 5.1 Dolby Atmos setup around this amplifier.

Key Features

• 250W per channel across all 5 channels, Class A/B
• 5 channels, modular one-amp-stage-per-channel design
• Easily build a powerful 5.1 home cinema setup
• Gold-plated RCA and balanced XLR input per channel
• RCA through-output for daisy-chaining a signal to another amp (e.g. for bi-amping)
• Gold-plated, isolated speaker output terminals accept 4mm banana plugs, spades, or bare wire
• Trigger input/output for turning the amp on/off with other components
• Super-silent audiophile power transformer
• Completely silent operation — no fan or active cooling
• Custom fine-line aluminium extrusion front panel, black or silver finish

Balanced XLR Connections

M6x 250.5 offers a gold-plated RCA and a balanced XLR input on every channel, plus an RCA through-output to distribute the same signal to another amp's input, useful for bi-amping. If your preamp or AV processor has XLR outputs, Musical Fidelity recommends using the balanced connection, which increases dynamics, reduces noise, and improves signal-to-noise ratio compared to unbalanced RCA.

Fan-Free, High-Current Power Design

The amplifier is built modular with one 250W Class A/B amplifier stage per channel. Musical Fidelity states this design preserves transients and micro-detail for a natural sound at any volume. Despite its power output, a sophisticated heat sink design eliminates the need for active cooling, so there's no fan noise at any listening level.

Technical Specifications

Frequently Asked Questions

Do I need a separate amp for my subwoofer?
Yes, M6x 250.5 powers your 5 main/surround channels for a 5.1 setup, but active subwoofers are powered separately, not through this amplifier.

How does this compare to the M6x 250.4/2 and M6x 250.11?
M6x 250.4/2 is a flexible 4-channel expansion amp for adding channels to an existing system. M6x 250.5 is a complete 5-channel amp sized for a 5.1 setup. M6x 250.11 is the largest in the range, built for a full 11-channel Dolby Atmos setup.

Should I use RCA or XLR to connect my AV processor?
If your preamp or AV processor has XLR outputs, use the balanced XLR connection for increased dynamics, reduced noise, and improved signal-to-noise ratio over unbalanced RCA.