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Crown ComTech DriveCore amplifiers provide state-of-the-arttechnology for installed sound applications. The ComTech amplifiers provide noiseless operation and small footprint with excellent quality and performance.



A signal-to-noise ratio of better than 110dB
Total harmonic distortion below 0.05% across the full audio bandwidth
Greater than 70dB crosstalk
Frequency response of ±0.5dB
Up to 8 channels in a single rack-space
Weight of only 10 pounds (4.54 Kg)
Over 90% efficient in the DriveCore amplifier stage
Power consumption of less than 1W when not in use (In Deep Sleep)
Green Mode delivers power when needed. Amplifier efficency increases
by up to 10% when compared to typical class D amplifiers

ComTech DriveCore, 4Ch, 75 Watts per Channel @ 8ohms

Crown CT4150 4-Channel Power Amplifier Details

With a name synonymous with powerful, reliable performance, the ComTech DriveCore family of amplifiers firmly establishes new standards in innovation. Performance is exemplary in every respect with Signal-to-Noise of better than 110dB and Total Harmonic Distortion below 0.05% across the full audio bandwidth, delivering studio-grade sound in one rack-space with up to 8 channels of 125W. ComTech DriveCore is ideal for installations that require premium sound quality, multi-channel configurations, compact dimensions, and quite often zero ambient fan noise. Typical applications include boardrooms, video and teleconferencing, VIP suites in stadiums and arenas, and upscale restaurants and retail outlets to name just a few. Representing next generation technology available today, the ComTech DriveCore proves without a doubt that big things really do come in small packages.

Powering this remarkable amplifier is the pioneering technology of DriveCore, which seamlessly integrates the amplifier drive stage into the power output stage fusing everything into a chip the size of a dime. The foundational DriveCore circuitry is based on breakthroughs by Crown's own Gerald Stanley with five patents applying to the advanced feedback, modulation and output stage technologies. DriveCore's front-end drive circuits leverage the inherent efficiency of Class D output stages while also maintaining superb sonic characteristics. The end result is an ultra-efficient one-piece audio amplifier circuit that exhibits the exemplary audio quality of a highly evolved Class AB design.

Energy efficiency is an integral part of ComTech DriveCore. This series debuts a new four-stage universal power supply that adapts to operating demands to assure peak efficiency. Normal, Green, Sleep, and Deep Sleep modes combine to provide everything from full voltage to the supply rails for instant response to limiting power consumption, to less than 1W when not in use. And, because it's over 90% efficient in the DriveCore stage, no fan is required, allowing for ultra-quiet operation.

An ideal complement for the intimate spaces within a larger project, such as the high-end suites in a stadium, the ComTech DriveCore is a technological marvel. Small in size, big in performance, and competitively priced, it effortlessly demonstrates Crown's unmistakable command of installed sound applications.

Crown CT475

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