CMX Series
Professional Power Amplifiers
CMX300V | CMX500V | CMX800V | CMX2000V
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.
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.
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 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.
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.
CMX Power Amplifiers
Watts per channel
All CMX amplifiers are protected from damage from shorted outputs.
Automatic current limiting protects the amplifier from damage until the
short is corrected.
2RU Models
CMX300V
CMX500V
CMX800V
8Ω
200
300
500
4Ω*
300
500
800
2Ω**
Bridged 4Ω**
830
430
700
1400
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.
1200
2400
Watts per channel
3RU Model
CMX2000V
8Ω
4Ω**
2Ω**
Bridged 4Ω**
1100
2000
2500
5000
Superior Performance
The CMX amplifiers deliver true and accurate studio-quality sound. A
full complementary output circuit using high-grade linear output devices
1 kHz, 0.1% THD *1 kHz, 0.5% THD **1 kHz, 1% THD
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