The Perfect Power Partner for ATC SSM Series Monitors
Specifically designed to power the company’s SSM series mountable passive loudspeakers, the ATC R4-150 Pro is a 4-channel power amplifier with Class AB MOSFET output stages and 150 watts per channel. Sharing technology with ATC’s highly respected P1 Pro dual-mono power amp — including four beefy toroidal transformers — the R4-150 Pro is housed in a suitably robust 5U chassis with silent, fanless convection cooling that allows for quiet operation in any suitable location. Today’s immersive mixes place tremendous demands on a monitoring system in terms of dynamic range, and the ATC R4-150 Pro pairs synergistically with SSM series monitors to accurately reproduce such program material with composure. The amp features ultra-high CMRR (Common-Mode Rejection Ratio) balanced XLR inputs and Neutrik NL4 output connectors. Lastly, the unit offers DC offset thermal protection and remote power on/off trigger inputs that allow for flexible installation.
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A legacy of monitoring accuracy
A young engineer named Billy Woodman spent his formative years working alongside some of the best speaker engineers of the day. In 1974, Woodman founded ATC (Acoustic Transducer Company). Since then, ATC has focused on one thing: creating the most accurate monitor loudspeakers possible. If you want to make great-sounding recordings that translate to the world outside your studio, accurate monitoring is a must. You need to hear every nuance of your audio, exactly as it was recorded and mixed. ATC monitoring equipment, expertly engineered with the highest-grade components, is designed to provide just that. How good are ATC monitors? Just ask renowned producers and engineers like George Massenburg, Chuck Ainlay, Nathaniel Kunkel, and Doug Sax. You’ll also find ATC monitors in Abbey Road Studios, Sony Studios New York, Blackbird Studios Nashville, and many more world-class facilities. Sweetwater is proud to offer you ATC’s extensive range of professional studio monitors.
ATC R4-150 Pro Features:
- 4-ch. power amplifier for SSM series monitors
- Quad-mono architecture engineered for demanding pro audio installation applications
- 4 independent, high-performance 150W grounded-source MOSFET Class AB power amplifier channels
- Very low noise and crosstalk; ultra-high CMRR balanced XLR inputs
- Speaker outputs via Neutrik NL4 connectors
- Front-panel bi-color LED indicates power on/off and limiter active
- Rear-panel mounted remote trigger on/off inputs
- Thermal and DC offset protection
- Convection cooled, 5U/19-in. rackmount chassis
- Fanless design allows for quiet operation
- ATC 6-year warranty
- Handbuilt in England
