Gebruiksaanwijzing /service van het product CMX 800V van de fabrikant QSC Audio
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User Manual CMX 3 00V CMX 5 00V CMX 800V C MX Series *TD-000322-00* TD -0003 22-00-B.
1 2 I MPO R T ANT SAFE T Y P RE CAUTI ON S AN D EXP L ANA TIO N O F SYM B O LS W AR N I N G! The lightning flash with the arrowhead symbol within an equilateral triangle is intended to alert the user.
1 2 W arranty (U SA only; other countries, see your dealer or distributor) Disclaimer QSC Audio Products, LLC is not liable for any damage to amplifiers, or any other equipment that is caused by negligence or improper installation and/ or use of this loudspeaker product.
3 4 Introduction These rugged, fan-cooled, 2-channel, 2RU amplifiers provide high-value per formance and po wer in a strong, compact chassis. The series comprises four models: the CMX 300V, C MX 5 00V, C MX 8 00V and C MX 2000V. The CMX 2000V is covered in a separate manual.
3 4 Back Panel 1 . Barrier strip input 2. XLR inputs, Channels 1 and 2 3. Configuration dip switches 4. TR S inputs, Channels 1 & 2 5. Fan 6. Speakon™ output, Channel 1 and 2 7 . T erminal block connector outputs, Channels 1 and 2 8. Circuit Breaker 9.
5 6 Input Filter What it is The low-frequenc y (LF) filter rolls off signals below either 30 Hz or 5 0 Hz (Figure 6 and 7) . This improves bass per formance by limiting sub-audio cone motion, making more power available for the speakers' rated frequenc y range.
5 6 Par allel Input Mode What it is The Parallel Input switches let you operate the amplifier in Parallel mode, delivering the same signal to both channels without using a Y cable. Each channel drives its own speaker load, with independent gain, filtering, and clip limiting.
7 8 Bridge Mono Mode What it is Bridge Mono mode combines the power of both amp channels into one speaker, resulting in twice the voltage swing, four times the peak power, and approximately three times the sustained power of a single channel.
7 8 The Difference Between Modes Stereo Mode Stereo mode is the typical way of using the amplifier . Each channel is fully independent. Separate signals connect at the inputs, the attenuation knobs control their respective channels, and separate speakers connect to each output.
9 1 0 Bridge Mono Mode This mode combines the full power capabilities of both channels into a single speaker system. The amplifier internally re-configures so that both channels operate as a unit.
9 1 0 Specifications CMX 300V CMX 500V CMX 800V Stereo Mode (Both Channels Driven) 70 V olt - - 400 W 1 00 V olt - - - Bridge Mono Mode 70 V olt 600 W 1 200 W 2000 W 1 00 V olt - 6 00 W 2300 W – Fi.
1 1 1 2 Installation Rack mounting of the amplifier is optional. Use four screws and washers when mounting the amplifier to the front rack rails. Support the amp at the rear also, especially in mobi.
1 1 1 2 Connections Inputs Each channel has active balanced XLR and ¼" (6.3 mm) inputs wired in parallel (Figure 22) . The input impedance is 20 k Ω balanced, 1 0 k Ω unbalanced. Balanced signals are less prone to AC hum, but unbalanced signals can be suitable for short cable runs.
1 3 1 4 Speakon™ Outputs CMX amplifiers offer a choice of output connections, with two Neutrik N L4M D Speakon™ jacks and a T erminal Block connector. The Speakon™ connector is designed specially for high-power speaker connections. It locks in place, prevents shock hazard, and assures the correct polarity .
1 3 1 4 T erminal Block Connector The terminal block connector requires the following assembly . 1 . Strip the wires to 7 ~ 8 mm. 2. Insert the wires into the male par t of the connector according to the Mode you are using. See belo w . 3. Use a flat-tip screwdriver to secure the wires.
1 5 1 6 Operation AC P ower Switch Before applying power, check all connections and turn the attenuation controls fully counter clockwise to maximum attenuation. One second of muting is normal when the amp is turned on or off (Figure 32) . Attenuation Controls The controls are marked with a scale indicating attenuation.
1 5 1 6 Fan cooling The fan speed varies automatically to maintain safe internal temperatures. Keep the front and rear vents clear to allow full air flo w .
1 7 1 8 Indication: C LI P LED flashing If the red CLI P indicator flashes when signal is applied, the amplifier output may be shorted. Check the speaker wiring for stray strands or breaks in the insulation. Indication: C LI P LEDs bright and steady The amplifier is in protective muting.
1 7 1 8 CMX 300V CMX 500V CMX 800V Stereo Mode (both channels driven) 8 Ω / F TC 20 Hz - 20 kHz / 0. 1% T H D 8 Ω / E IA 1 K HZ / 0. 1% T H D 4 Ω / F TC 20 HZ - 20 K H Z / 0.
Mailing Address: QSC Audio Products, LL C 1 675 MacArthur Boule vard Costa Mesa, C A 92626-1 46 8 U S A T elephone Numbers: Main Number: (7 1 4) 754-6 1 75 Sales & Marketing: (7 1 4) 957-7 1 00 or.
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