Qsc - Cx6T 电路图.pdf

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1、CX6T FEATURES 1675 MacArthur Boulevard Costa Mesa, California 92626-1468 USA Phone: 714/754-6175 Fax: 714/754-6174 CX Series Toroidal Output Transformers Provide Full Electrical Isolation and Meet Worldwide Safety Agency Approval Automatic Two-Speed, High Efficiency Fan CoolingFor Quiet Normal Opera

2、tion with Maximum Cooling on Demand Rear-to-Front Air FlowKeeps Equipment Racks Cool Front Panel Status LEDsIndicate Clip, Protect, Power and Signal Presence Rear Panel Detented Gain Controls For Security and Resetability Open Input ArchitectureFlexible Input Options Detachable Euro-Style Barrier St

3、rip InputEasy and Economical Connections Stereo, Bridge, or Parallel Operating ModesSwitch Selectable Double Thickness Rack EarsFor Extra Strength Covered Barrier Strip Output ConnectionsMeets Safety Agency Requirements Simple Barrier Strip Connection Determines Output Mode25 V, 70 V, 100 V and Dire

4、ct Outputs Available Simultaneously Built-in 45 Hz Subsonic Filter Prevents Speaker Transformer Saturation With Minimal Effect on Program Material he CX6T amplifier is ideal for use in any permanently installed sound system. Designed to meet the spe- cialized needs of high power, high quality audio

5、sys- tems, the CX6T offers the features requested most by contractors and installers from around the world. The CX6T resides in a rugged three rack-space steel chassis approximately 17.9 inches deep. With high quality internal isolation transformers, the CX6T fea- tures built-in capability for drivi

6、ng 25, 70 or 100 volt distributed sound systems as well as direct output voice coil loads. Versatile design allows a 25, 70 or 100 volt connection on one channel and a direct connection on the other channel. For maximum flex- ibility, you can even drive a distributed line and a low impedance load on

7、 the same channel at the same time! The CX6T features a built-in 45 Hz sub- sonic filter that reduces saturation of speaker trans- formers caused by excessively low frequencies. High output power, versatile loading options, high ther- mal capacity and rugged reliability make the CX amplifiers ideal

8、for any high quality sound system installation. LOADOUTPUT POWER (Direct Outputs)OUTPUT POWER (Isolated Outputs) 45Hz-20kHz, 0.1% THD1kHz, 1% THD1 kHz, 0.1% THD Stereo (W/Ch) 8200 watts220 watts 4300 watts350 watts 2450 watts* 25 volts200 watts 70 volts250 watts 100 volts250 watts Mono-Bridged 16400

9、 watts440 watts 8600 watts700 watts 4900 watts* 50 volts400 watts 140 volts500 watts 200 volts500 watts *typical RadioFans.CN 收音机爱 好者资料库 FPO/BACK CX6T Specifications POWER OUTPUT Direct output, watts per channel, both channels driven 8, 45 Hz-20 kHz, 0.1% THD200 8, 1 kHz, 1% THD220 4, 45 Hz-20 kHz,

10、0.1% THD300 4, 1 kHz, 1% THD350 2, 1 kHz, 1% THD*450 Isolated outputs, watts per channel, both channels driven 70V or 100V, 1 kHz, 0.1% THD250 25V, 1 kHz, 0.1% THD200 Direct Outputs, bridged mono 8, 45 Hz-20 kHz, 0.1% THD600 4, 1 kHz, 1% THD*900 Isolated outputs, bridged mono 50V, 1 kHz, 0.1% THD400

11、 140V, 1 kHz, 0.1% THD500 200V, 1 kHz, 0.1% THD500 DISTORTIONSMPTE-IM, less than 0.05%, direct outputs FREQUENCY RESPONSE Direct outputs:-3 dB 45 Hz*, -0.2 dB 20 kHz Isolated outputs:45 Hz*-16 kHz, +0, -3 dB * Low frequency response is limited by 18 dB/octave 45-Hz high-pass filter. DAMPING FACTOR20

12、0 ( direct outputs) OUTPUT REGULATION100V1.0 dB; 70V1.1 dB; 25V2.0 dB NOISE100 dB below rated output (20 Hz to 20 kHz) VOLTAGE GAIN direct outputs40 x (32 dB) INPUT SENSITIVITY, VRMS for rated power, 81.02 INPUT IMPEDANCE10K unbalanced, 20K balanced CONTROLS Front: AC Switch Rear: Parallel/Stereo/Br

13、idge Switch, 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) PROTECT:Red LED CLIP:Red LED SIGNAL:Yellow LED POWER:Green LED REAR PANEL/CONNECTORS (each channel) Input:Euro-style detachable header Output:Covered barrie

14、r 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 loads LOAD PROTECTIONTurn-on/turn-off muting, DC-fault load grounding relay with internal fault fus

15、es 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 per channel Multiply current by 0.5 for 220-240 VAC op

16、eration Channel LoadAC Current, Full PowerAC Current, 1/3 PowerAC Current, 1/8 PowerAC Current, Idle 8 + 87.7 A4.9 A3.3 A0.6 A 4 + 412.5 A7.4 A4.8 A0.6 A 2 + 218.8 A11.0 A7.2 A0.6 A 25V, 70V, 100V11.2 A6.7 A4.5 A0.6 A DIMENSIONS Faceplate WidthStandard 19 (48.3 cm) Rack Mounting Chassis Depth17.9 (4

17、5.5 cm) deep (to rear support ears) Faceplate Height5.25 (13.3 cm) WEIGHTShipping62 lb; 28 kg; Net55 lb; 25 kg ARCHITECTS AND ENGINEERS SPECIFICATIONS The amplifier shall contain all solid-state circuitry, using complementary silicon output devices in a Class AB output circuit. The amplifier shall o

18、perate 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 house- hold AC outlet, drawing less than 580 VA when driven with random pro- gram material at 1/8 rated power into four ohm loads. The amplifier shall be suppli

19、ed 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 speed 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 po

20、ssible without clearance necessary between amplifiers for ventilation. The amplifier shall be capable of continuous operation at 1/8 power, into four-ohm loads, for ambient temperatures up to 104 F (40 C). The amplifier shall contain two independent channels, with separate AC transformer secondaries

21、, power supplies, and protection systems. All pro- tection systems shall be self resetting upon removal of fault, and the re- maining channel shall continue to operate. Each channel shall have inde- pendent protective circuitry against open circuit, short circuit, or mis- matched loads. Each channel

22、 shall monitor temperature of its heat sink and power transformer, and shall trigger fan speed boost, and if neces- sary, signal muting to prevent excessive temperature rise. Each channel shall have on-off muting, acting for three seconds after turn-on, and within 1/4 second after turn-off or loss o

23、f AC power. Each channel shall have DC fault protection for the load, consisting of a load-grounding relay with fault fusing to interrupt power. Fault fuses shall be adequately large to prevent nuisance blowing at any output power the amplifier is capable of delivering. Each channel shall have the f

24、ollowing controls and displays: A rear panel Gain control and Bridge/Stereo/Parallel mode switch, front panel displays consist of a green LED power-on indicator; one yellow LED signal indica- tor, triggering at -30 dB; a red LED showing true amplifier clipping; and a red LED which indicates muting w

25、hen illuminated. The output connectors for each channel shall be shrouded barrier strip connectors. The input connector shall be mounted on a removable panel to permit upgrades. The standard input panel shall provide detachable Euro-style header con- nections for each channel. Inputs shall be electr

26、onically 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. The standard input panel shall contain switches for mono-bridging and parallel inputs, and solder pat- terns for input isolation transformers, gain reduction resi

27、stors, and first- order high and low pass filters . The input panel shall have enough space behind it to contain a circuit board measuring up to 5.9 wide by 4.1 “ deep. The multi-pin connector to the amplifier circuitry shall supply positive and negative DC supply cur- rents, and for each channel, b

28、alanced input signals, output signal, and clip/protect signal. Optional XLR and 1/4” RTS input connectors may be installed in place of a standard blank panel, mounted above the standard input panel. Internally-mounted toroidal output transformers shall provide electrically isolated output taps for 2

29、5, 70, and 100 volt distributed lines. The direct amplifier output shall also be available to drive voice coil loads. The use of voice coil and distributed line operation is independent on each chan- nel. It is possible to use both the direct and isolated outputs simulta- neously on a single channel

30、, as long as the total power rating of the am- plifier is not exceeded. A built-in 45 Hz, third-order subsonic filter shall be provided to reduce saturation of speaker transformers, due to exces- sive low frequency program material. The filter is non-defeatable and affects all outputs. Each channel

31、shall be capable of meeting the following performance cri- teria with both channels driven: Sine-wave output power of 200 watts into eight ohms, and 300 watts into four ohms, 45 Hz to 20 kHz, with less than O.1% THD. Frequency response at 3 dB below rated power shall be - 3 dB at 45 Hz and -0.2 dB a

32、t 20 kHz. The voltage gain shall be 40, equiva- lent to 32 dB, and the input sensitivity shall be 1.02 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 for the direct outputs. Output regula- tion, of the isolated outputs, shal

33、l not exceed 1.0 dB at 100 volts, 1.1 dB at 70 volts and 2.0 dB at 25 volts. The amplifier chassis shall occupy three rack spaces, with provision for securing the rear corners. Depth from mounting surface to tips of rear supports shall be 17.9 (45.5 cm). Weight shall not exceed 55 Ibs. (25 kg). The amplifier shall be the QSC Audio Products Model CX6T. 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