CMX Series

Professional Power Amplifiers

Contractor “Flex-Use” Specific Features

The CMX Series is packed full of professional features that increase performance and flexibility.

•“Flex-Use” loading options allow you to drive low-impedance loads down to 2 ohms and certain models to drive 70 and 100V distributed loudspeaker systems

•“Flex-Use” Input connectivity choices including actively balanced barrier strip, XLR, or ¼" TRS

•“Flex-Use” Output connectivity choices include NL4 Speakon™ and detachable terminal block

•Rack mountable with chassis less than 16" or 40.6 mm deep

•1 dB recessed, detented gain controls for fast, accurate and repeatable settings

•Tamper-proof security cover for gain controls

•Recessed rear DIP switches for easy selection of stereo, parallel, or bridged mode operation, and the additional choice of enabling/disabling low frequency filter protection

•Low-noise variable-speed fans with rear-to-front airflow keep amplifiers and racks cool

The New CMX Series is an economical and rugged power amplifier designed to meet the needs of system integrators. It is based upon the proven, rock-solid, reliable performance found in the award winning RMX Series. The CMX feature sets are designed for wide-ranging application in facilities such as performance halls, houses of worship, sports clubs, gymnasiums, dance venues, pubs, and FGM/BGM systems. The CMX Series provides unmatched performance, the right power for the job and an affordable price point.

Proven and Reliable Power Plant

CMX amplifiers incorporate everything QSC has learned in more than forty years of striving to deliver worry-free operations without failures. The design of these amplifiers starts with our world-class power supplies. The CMX uses a powerful, high-current toroidal transformer and filtering to ensure generous energy reserves. This allows the amplifiers to effortlessly handle high-level transients, even when driving abusive 2 ohm speaker loads.

The amplifier output sections feature rugged class AB and class H architecture depending on power level. Efficient class H output sections on the CMX800V and CMX2000V reduce AC current draw and cut down on waste heat.

All CMX amplifiers are protected from damage from shorted outputs. Automatic current limiting protects the amplifier from damage until the short is corrected.

CMX amplifiers also feature DC protection systems to prevent loudspeaker damage in the unlikely event of an output transistor failure. DC voltage from the power supply is never passed directly to your speakers, even in the event of an output circuit failure.

Superior Performance

The CMX amplifiers deliver true and accurate studio-quality sound. A full complementary output circuit using high-grade linear output devices

CMX300V CMX500V CMX800V CMX2000V

generates accurate, flat-frequency response with low distortion. SMT (Surface Mount Technology) triples small-signal component density, enabling high power output in a 2 rack unit chassis (3 RU for the CMX2000V). Unlike other designs, CMX output devices are directly mounted to the heat sink for optimum thermal coupling and cooling.

The CMX Series is available in four models. Three 2-rackspace models range in power from 300 to 800 watts per channel at 4 ohms. One 3-rackspace model provides 2500 watts per channel at 2 ohms. All four models feature a compact chassis less than 16" deep.

The V in the model name designates the ability to directly drive 70-volt and/or 100-volt distributed loudspeakers. The CMX300V and CMX500V must be configured for bridged-mono operation in order to directly drive high-impedance systems while the CMX800V and 2000V may be used in either stereo or mono mode.

For installations requiring a transformer isolated output, the CMX has optional accessories to cover your needs.

CMX Power Amplifiers

 

 

Watts per channel

 

2RU Models

8Ω

4Ω*

2Ω**

Bridged 4Ω**

 

 

 

 

 

CMX300V

200

300­

430

830

 

 

 

 

 

CMX500V

300

500

700

1400

 

 

 

 

 

CMX800V

500

800

1200

2400

 

 

 

 

 

 

Watts per channel

 

3RU Model

8Ω

4Ω**

2Ω**

Bridged 4Ω**

 

 

 

 

 

CMX2000V

1100

2000

2500

5000

 

 

 

 

1 kHz, 0.1% THD

*1 kHz, 0.5% THD

**1 kHz, 1% THD

 

Page 1 Page 2
Page 1
Image 1
QSC Audio manual Contractor Flex-Use Specific Features, CMX300V CMX500V CMX800V CMX2000V
Page 1 Page 2

CMX500V, CMX800V, CMX300V specifications

QSC Audio, a prominent name in professional audio equipment, has unveiled a line of amplifier series that includes the CMX500V, CMX300V, and CMX800V. These amplifiers are designed to deliver superior audio performance and reliability, making them excellent choices for various applications, including live sound, installations, and rental services.

The CMX500V amplifier is a powerhouse, offering an impressive output of 500 watts per channel at 4 ohms. It features a rugged design that ensures durability in demanding environments. One of its key characteristics is the built-in high-efficiency Class H circuitry, which works to minimize power consumption while maintaining exceptional sound quality. The CMX500V is equipped with comprehensive protection circuitry that guards against overheating, short circuits, and overloads, ensuring the longevity of the amplifier and connected components. Additionally, the integrated signal processing features allow for fine-tuning audio output according to specific venue needs.

Moving on to the CMX300V, this model is perfect for smaller venues or applications requiring less power. With an output of 300 watts per channel at 4 ohms, it combines compactness with impressive performance. The CMX300V also utilizes Class H technology, which contributes to its efficiency and low thermal output. Its lightweight design makes it easy to transport, while its robust construction ensures reliability. This amplifier provides a range of inputs and outputs, making it flexible for various connection setups. Its user-friendly interface simplifies operation, ideal for those who may not have extensive technical expertise.

Finally, the CMX800V stands out with its impressive output power of 800 watts per channel at 4 ohms. Designed for larger applications, it provides exceptional headroom and clarity, making it suitable for both live music and installed sound systems. The CMX800V incorporates advanced cooling technology that enhances performance and stability during extended use. Like its counterparts, it features comprehensive protection mechanisms and a built-in fan to regulate temperature efficiently.

In summary, the QSC CMX series amplifiers—CMX500V, CMX300V, and CMX800V—are engineered to meet the demanding needs of audio professionals. With their efficient Class H designs, robust protection features, and versatility, these amplifiers deliver exceptional sound quality and reliability, making them indispensable tools for sound reinforcement in various settings.
Top Page Image Contents