Features

  • “Flex-Use” loading options allows CMX Series amps to drive low-impedance loads down to 2 ohms, and certain models can direct-drive (no output transformer) 70V 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" (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 enabling/disabling low-frequency filter protection
  • Low-noise variable-speed fans with rear-to-front airflow help keep amplifiers and racks cool
Price: $1,018.00
    Quantity:
    Availability: In Stock
    Usually ships In 24 - 48 hours

    Item #: CMX500Va

    Description

    Contractor power amplifier/ 2 channel, 300 watts/ch at 8Ω, 500 watts/ch at 4Ω, 70V/mono at 1200 Watts

    Specifications

    Professional Power Amplifiers

    CMXa Series

    CMX 300Va | CMX 500Va | CMX 800Va | CMX 2000Va

    CMX 300Va | CMX 500Va |

    CMX 800Va | CMX 2000Va

    Features

    • “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-tofront airflow keep amplifiers and racks cool

    The New CMXa 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 CMXa 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 CMXa Series provides

    unmatched performance, the right power for

    the job and an affordable price point.

    Proven and Reliable Power Plant

    CMXa 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 CMXa 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 CMX 800Va and CMX 2000Va reduce

    AC current draw and cut down on waste heat.

    All CMXa amplifiers are protected from damage

    from shorted outputs. Automatic current

    limiting protects the amplifier from damage

    until the short is corrected.

    CMXa 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 CMXa amplifiers deliver true and accurate

    studio-quality sound. A full complementary

    output circuit using high-grade linear output

    devices 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

    CMX 2000Va). Unlike other designs, CMXa

    output devices are directly mounted to the heat

    sink for optimum thermal coupling and cooling.

    The CMXa 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 CMX 300Va and

    CMX 500Va must be configured for bridgedmono operation in order to directly drive

    high-impedance systems while the CMX 800Va

    and 2000Va 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.

    CMXa Power Amplifiers

    Watts per channel

    2RU Models 8Ω 4Ω* 2Ω** Bridged 4Ω**

    CMX 300Va 200 300 430 830

    CMX 500Va 300 500 700 1400

    CMX 800Va 500 800 1200 2400

    Watts per channel

    3RU Model 8Ω 4Ω** 2Ω** Bridged 4Ω**

    CMX 2000Va 1100 2000 2500 5000

    1 kHz, 0.1% THD *1 kHz, 0.5% THD **1 kHz, 1% THD

    CMXa Details

    1675 MacArthur Boulevard • Costa Mesa, CA 92626 • Ph: 800/854-4079 or 714/957-7100 • Fax: 714/754-6174

    CMXa Spec Sheet 08/9/2013

    please recycle

    © 2013 QSC Audio Products, LLC. All rights reserved. QSC and the QSC logo are registered trademarks of QSC Audio Products, LLC in the U.S. Patent and Trademark

    office and other countries. Speakon is a trademark of Neutrik. All other trademarks are the property of their respective owners. Patents may apply or be pending.

    Specifications subject to change without notice.

    CM X300Va CMX 500Va CMX 800Va CMX 2000Va

    Stereo Mode (both channels driven)

    8Ω / FTC 20 Hz – 20 kHz / 0.1% THD

    8Ω / EIA 1 kHz / 0.1% THD

    4Ω / FTC 20 Hz – 20 kHz / 0.1% THD

    4Ω / EIA 1 kHz / 0.5% THD

    2Ω / EIA 1 kHz / 1% THD

    70V Direct Drive / EIA 1 kHz / 1% THD

    100V Direct Drive / EIA 1 kHz / 1% THD

    185 W

    200 W

    280 W

    300 W

    430 W

    260 W

    300 W

    400 W

    500 W

    700 W

    450 W

    500 W

    650 W

    800 W

    1200 W

    400 W

    1050 W

    1100 W

    1600 W

    2000 W (1% THD)

    2500 W

    2500 W

    1000 W

    Bridge Mono Mode

    8Ω / FTC 20 Hz – 20 kHz / 0.1% THD

    8Ω / EIA 1 kHz / 0.1% THD

    4Ω / EIA 1 kHz / 1% THD

    70V Direct Drive / EIA 1 kHz / 1% THD

    100V Direct Drive / EIA 1 kHz / 1% THD

    530 W

    600 W

    830 W

    600 W

    800 W

    900 W

    1400 W

    1200 W

    600 W

    1300 W

    1500 W

    2400 W

    2000 W

    2300 W

    3200 W

    3600 W

    5000 W

    5000 W

    3600 W

    Signal to Noise (20 Hz – 20 kHz, 8Ω) > -100 dB > - 100 dB > - 100 dB > - 100 dB

    Input Sensitivity at 8Ω 1.15 V (+3.4 dBu) 1.14 V (+3.4 dBu) 1.23 V (+4.0 dBu) 1.42 V (+5.3 dBu)

    Voltage Gain at 8Ω 31.6 x (30 dB) 40 x (32 dB) 46 x (33 dB) 64 x (36 dB)

    Output Circuitry Class AB Class AB 2-tier Class H 3-tier Class H

    Power Requirements

    Typical, 1/8 power pink noise at 4Ω, 120 VAC

    Typical, 1/8 power pink noise at 4Ω, 230 VAC

    Severe, 1/3 power pink noise at 4Ω, 120 VAC

    Severe, 1/3 power pink noise at 4ΩΩ, 230 VAC

    4.4 A

    2.2 A

    6.6 A

    3.3 A

    5.4 A

    2.7 A

    9.6 A

    4.8 A

    6.3 A

    3.2 A

    15.6 A

    7.8 A

    13.9 A

    7 A

    26.9 A

    13.5 A

    Distortion (SMPTE-M) < 0.02% < 0.01% < 0.01% < 0.01%

    Distortion (typical)

    20 Hz – 20 kHz: 10 dB below rated power

    1.0 kHz and below: full-rated power

    < 0.03% THD / 4Ω and 8Ω

    < 0.03% THD / 4Ω and 8Ω

    Frequency Response 20 Hz – 20 kHz: ±1 dB -3 dB points: 5 Hz – 50 kHz

    Damping Factor (1 kHz and below) > 300 at 8Ω

    Input Impedance 10k ohms unbalanced, 20k ohms balanced

    Input Clipping 10 Vrms (+22 dB)

    Cooling Continuously variable-speed fan, rear-to-front air flow

    Connectors (each channel) Input: Active balanced; barrier strip, XLR and ¼" (6.3 mm) – TRS tip and XLR pin 2 positive

    Output: Detachable terminal block and Neutrik™ Speakon™

    Controls Front: AC switch, Ch. 1 & 2 gain knobs

    Rear: 10-position DIP switch

    Indicators Power-on: Green LED / Signal: Green LED (1 per channel) / Clip: Red LED (1 per channel)

    Amplifier Protection Stable into reactive or mismatched loads

    Load Protection On/off muting, AC coupling (CMX 300Va and CMX 500Va), triac crowbar (CMX 800Va and CMX 2000Va

    on each channel)

    Power Requirements 120 and 230 VAC, 50 – 60 Hz

    Dimensions (HWD)

    2 RU models

    3 RU model (CMX 2000Va)

    3.5" (8.9 cm) 2 rack spaces x 19" (48.3 cm) rack mounting x 15.9" (40 cm) deep to rear support ears

    5.25" (13.3 cm) 3 rack spaces x 19" (48.3 cm) rack mounting x 15.9" (40 cm) deep to rear support ears

    Weight - Net 35 lb (15.9 kg) 40 lb (18.2 kg) 44.5 lb (20.2 kg) 75 lb (33.1 kg)

    Weight - Shipping 41 lb (18.6 kg) 46 lb (20.9 kg) 50.5 lb (23 kg) 87 lb (37.2 kg)