Qsc - Pl14 Spec Sheet 电路图.pdf

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1、he PowerLight 1.4 is an advanced professional audio amplifier featuring uncompromised audio performance. A new high frequency power supply, utilizing QSCs PowerWave Switching Technology, has been combined with the rugged audio amplification circuits of traditional QSC amplifiers to produce an amplif

2、ier with incredible reliability, thermal capacity and audio performance. The PowerLight 1.4 is rated at 325 watts/channel into 8 ohms, 550 watts/channel 1675 MacArthur Boulevard Costa Mesa, California 92626-1468 USA Phone: 714/754-6175 Fax: 714/754-6174 PowerLight into 4 ohms, and 700 watts/channel

3、into 2 ohms making it ideal for powering subwoofer and high power, passive full-range speaker systems. Increased power supply regulation maintains excellent low impedence performance. Outstanding audio performance and reliability, high efficiency design, networkability, and light weight make this am

4、plifier ideal for all critical sound system applications. 700 watts per channel at 2 ohms 550 watts per channel at 4 ohms (guaranteed minimum specs) Advanced thermal management system Clip Limiter (user defeatable) reduces distortion, protects loud speakers PowerWave Switching Technologyfor improved

5、 audio performance Detented gain controls with 2 dB steps for easy resetting Comprehensive LED status arrays High efficiency, 2-step output circuit for improved thermal performance and lower AC current consumption Variable speed fan, for quiet operation DC, sub audio, and thermal overload protection

6、 Patented Output Averaging short- circuit protection Neutrik ”Combo“ (XLR a green LED power-on indicator; a yellow LED standby indicator and a red protect mode indica- tor. Each channel shall have the following controls and displays: A front panel detented gain control, with 11 gain settings: 34 dB,

7、 32 dB, 30 dB, 28 dB, 26 dB, 24 dB, 22 dB, 20 dB, 16 dB, 10 dB, -; a recessed front panel clip limiter defeat switch; a green signal present LED triggering at -30 dB; two yellow LED output indicators, triggering at -20 dB and -10 dB; a red LED showing true amplifier clipping. The output connectors f

8、or each channel shall include a “touch proof” bind- ing post, accepting banana plug or up to 7 AWG (4mm) wire. Connector terminals are arranged to allow bridge mono connection. The rear panel input shall provide barrier strip and Neutrik “Combo” con- nectors for each channel. The XLR input shall be

9、wired with pin 2 high, the 1/4 RTS input shall be wired with tip positive, ring negative, and sleeve grounded. Inputs shall be electronically balanced, with a minimum impedance of 10 kilohms per side, and a common mode rejection of at least 50 dB from 20 Hz to 20 kHz. A High Density 15 Pin Data Port

10、 connector shall carry both audio and am- plifier operational status signals to and from a QSC MultiSignal Proces- sor. Switches shall be provided for stereo-bridging and parallel inputs. A two position barrier strip, on the rear panel, shall be used for remote AC power control. A contact closure sh

11、all place the amplifier in standby mode, when the front panel power switch is in the on position. The front panel power switch shall function as a master switch that removes all AC power. Each channel shall be capable of meeting the following performance cri- teria with both channels driven: Sine-wa

12、ve output power of 300 watts into eight ohms, and 500 watts into four ohms, 20 Hz to 20 kHz, with less than 0.1% THD. Frequency response at 3 dB below rated power shall be 20 Hz to 20 kHz within 0.15 dB. The voltage gain shall be 50, equivalent to 34 dB, and the input sensitivity shall be 0.96 Vrms.

13、 The signal to noise ratio over the range of 20 Hz to 20 kHz shall exceed 108 dB relative to full output. IHF damping factor shall exceed 350. The amplifier chassis shall occupy two 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 18 lbs. (8.2 kg.). The amplifier shall be the QSC Audio Products PowerLight 1.4. RadioFans.CN 收音机爱 好者资料库