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Alliance Atlantis Chooses Grace m902s

Alliance Atlantis, Toronto-based broadcaster, creator and international distributor of filmed entertainment content, has taken delivery of 11 Grace Design m902 reference headphone amplifier/monitor controllers.

Each of the 11 units will be installed in the company’s newly upgraded edit suites and will be used as the primary systems for both headphone and stereo speaker reference monitoring. Grace Design’s Canadian distributor, Sonotechnique, handled the sale.

The m902 is a stereo reference headphone amp and monitoring controller housed in a 1U, half-rack enclosure with an industrial design that mirrors that of the company’s m904 and m906 monitoring systems. The m902 provides balanced and unbalanced stereo analog inputs via rear panel XLR and RCA jacks. Both +4dBu and –10dBV analog sources are accommodated. A pair of front panel, parallel-wired 1/4-inch TRS outputs are included to allow two headphone pairs to be used simultaneously. The m902 also adds a pair of line outputs on the rear panel for connection to a stereo pair of monitors, allowing the system to also perform as a high-end system preamp.

The m902 employs high-current, transimpedance output amplifiers optimized for driving low-impedance headphones. A front panel rotary encoder provides control of both headphone and line output levels, and level adjustments are made in 0.5dB steps within a 95dB range. Channel to channel level matching is 0.05dB.

The m902 carries an MSRP of $1,695 (USD) and is now shipping. Please visit for more information. For more information on Alliance Atlantis, visit