Qsc - Cx4 Spec Sheet 电路图.pdf

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1、CX4 FEATURES 1675 MacArthur Boulevard Costa Mesa, California 92626-1468 USA Phone: 714/754-6175 Fax: 714/754-6174 CX Series Automatic Two-Speed, High Efficiency Fan CoolingFor Quiet Normal Operation with Maximum Cooling on Demand Rear-to-Front Air Flow Keeps Equipment Racks Cool Front Panel Status L

2、EDs Indicate Clip and Power Rear Panel Detented Gain ControlsFor Security and Resetability Detachable Euro-Style Barrier Strip InputEasy and Economical Connections Double Thickness Rack Ears For Extra Strength Covered Barrier Strip Output ConnectionsMeets Safety Agency Requirements The CX4 amplifier

3、 is ideal for use in any permanently installed sound system. Designed to meet the spe- cialized needs of high power, high quality audio systems, the CX4 offers the features requested most by contractors and installers from around the world. Rear panel gain controls offer extra security and front pan

4、el status LEDs offer easy indication of the amplifier conditions. Per channel power ratings of 150 watts at 8 ohms, 225 watts at 4 ohms and 350 watts at 2 ohms make the CX4 an economical choice for direct output applications that dont require the output transformers of the CX4T. The CX4 resides in a

5、 rugged two rack-space steel chassis approximately 17.9 inches deep. High output power, high thermal capacity and rugged reliability make the CX amplifiers ideal for any high perfor- mance sound system installation. *typical PRELIMINARY SPECIFICATIONS LOADOUTPUT POWER 20Hz-20kHz, 0.1% THD1 kHz, 1% T

6、HD Stereo (W/Ch) 8150 watts170 watts 4225 watts250 watts 2350 watts* Mono-Bridged 16300 watts340 watts 8450 watts500 watts 4700 watts* RadioFans.CN 收音机爱 好者资料库 FPO/BACK CX4 Specifications POWER OUTPUT Direct output, watts per channel, both channels driven 8, 20 Hz-20 kHz, 0.1% THD150 8, 1 kHz, 1% THD

7、170 4, 20 Hz-20 kHz, 0.1% THD225 4, 1 kHz, 1% THD250 2, 1 kHz, 1% THD*350 Direct Outputs, bridged mono 8, 20 Hz-20 kHz, 0.1% THD450 4, 1 kHz, 1% THD*700 *typical DISTORTIONSMPTE-IM, less than 0.05% FREQUENCY RESPONSE20 Hz-20 kHz, +0.2 dB DAMPING FACTOR200 NOISE100 dB below rated output (20 Hz to 20

8、kHz) VOLTAGE GAIN 35x (31 dB) INPUT SENSITIVITY, VRMS for rated power, 80.96 INPUT IMPEDANCEnot less than 20 Kohms CONTROLS Front: AC Switch Rear: Ch.1 and Ch. 2 Attenuator Knobs (11 detents: 0, -2, -4, -6, -8, -10, -12, -14, -18, -24, off) FRONT PANEL/INDICATORS (per channel) CLIP:Red LED POWER:Gre

9、en LED REAR PANEL/CONNECTORS (each channel) Input:Euro-style detachable header Output:Covered barrier strips COOLING2-speed fan, with back-to-front air flow AMPLIFIER PROTECTION Output Averaging short circuit protection, open circuit, ultrasonic, RF, thermal muting Stable into reactive or mismatched

10、 loads LOAD PROTECTIONTurn-on/turn-off muting, DC-fault OUTPUT CIRCUIT TYPEClass AB complementary linear stage POWER REQUIREMENTS:100, 120, 220-240 VAC, 50/60 Hz POWER CONSUMPTION Normal operation: 1/8 power 4 per channel Worst case continuous program: 1/3 power 2 per channel Maximum: full power 2 p

11、er channel Multiply current by 0.5 for 220-240 VAC operation DIMENSIONS Faceplate WidthStandard 19 (48.3 cm) Rack Mounting Chassis Depth17.9 (45.5 cm) deep (to rear support ears) Faceplate Height3.5 (13.3 cm) WEIGHTShipping36 lb; 16.4 kg; Net30 lb; 13.6 kg ARCHITECTS AND ENGINEERS SPECIFICATIONS The

12、 amplifier shall contain all solid-state circuitry, using complementary silicon output devices in a Class AB output circuit. The amplifier shall op- erate from 50-60 Hz AC power, with internal taps for selecting voltages 100,120, or 220-240 VAC. The amplifier shall operate from a normal household AC

13、 outlet, drawing less than 500 VA when driven with random program material at 1/8 rated power into four ohm loads. The amplifier shall be supplied with a single molded AC cord having an appropriate AC plug for the intended operating voltage. The amplifier shall employ forced-air cooling with a two s

14、peed fan for minimum acoustic noise. Air flow shall be from rear to front to avoid tem- perature rise inside the rack. Rack mounting shall be possible without clearance necessary between amplifiers for ventilation. The amplifier shall be capable of continuous operation at 1/8 power, into four-ohm lo

15、ads, for ambient temperatures up to 104 F (40 C). The amplifier shall contain two independent channels, with separate AC transformer secondaries, power supplies, and protection systems. All protection systems shall be self resetting upon removal of fault, and the remaining channel shall continue to

16、operate. Each channel shall have in- dependent protective circuitry against open circuit, short circuit, or mis- matched loads. Each channel shall monitor temperature of its heat sink and shall trigger fan speed boost, and if necessary, signal muting to pre- vent excessive temperature rise. Each cha

17、nnel shall have on-off muting, acting for three seconds after turn-on, and within 1/4 second after turn- off or loss of AC power. Each channel shall have DC fault protection for the load. Fault fuses shall be adequately large to prevent nuisance blow- ing at any output power the amplifier is capable

18、 of delivering. Each channel shall have the following controls and displays: A rear panel Gain control and front panel displays consist of a green LED power-on indicator and a red LED showing true amplifier clipping. The output con- nectors for each channel shall be shrouded barrier strip connectors

19、. The standard input panel shall provide detachable Euro-style header connec- tions for each channel. Inputs shall be electronically balanced, with a minimum impedance of 10 kilohms per side, and a common mode rejec- tion of at least 50 dB from 20 Hz to 20 kHz. Each channel shall be capable of meeti

20、ng the following performance cri- teria with both channels driven: Sine-wave output power of 150 watts into eight ohms, and 225 watts into four ohms, 20 Hz to 20 kHz, with less than O.1% THD. Frequency response at 3 dB below rated power shall be within +0.2. dB. The voltage gain shall be 35, equival

21、ent to 31 dB, and the input sensitivity shall be 0.96 VRMS. The signal to noise ratio over the range of 20 Hz to 20 kHz shall exceed 100 dB. IHF damping factor shall exceed 200. The amplifier chassis shall occupy two rack spaces, with provision for se- curing the rear corners. Depth from mounting surface to tips of rear sup- ports shall be 17.9 (45.5 cm). Weight shall not exceed 30 Ibs. (13.6 kg). The amplifier shall be the QSC Audio Products Model CX4. 1675 MacArthur Boulevard Costa Mesa, California 92626-1468 USA Phone: 714/754-6175 Fax: 714/754-6174 RadioFans.CN 收音机爱 好者资料库