User manual CREST AUDIO PL SERIES

[. . . ] PL PROFESSIONAL POWER AMPLIFIERS CLIP SIGNAL PROTECT ACTIVE -6 -10 -15 -30 -80 0dB -1 -3 -15 -30 -80 0dB -1 -10 CLIP SIGNAL PROTECT CH A CH B -6 -3 PL 9001 ACTIVE PROFESSIONAL POWER AMPLIFIER CLIP SIGNAL PROTECT ACTIVE -6 -10 -15 -30 -80 0dB -1 -3 -15 -30 -80 -10 CLIP SIGNAL PROTECT CH A CH B -6 -3 PL 8001 ACTIVE PROFESSIONAL POWER AMPLIFIER -1 0dB CLIP SIGNAL PROTECT ACTIVE -6 -10 -15 -30 -80 0dB -1 -3 -15 -30 -80 -10 CLIP SIGNAL PROTECT CH A CH B -6 -3 ACTIVE PL -1 7001 PROFESSIONAL POWER AMPLIFIER 0dB CLIP SIGNAL PROTECT ACTIVE -6 -10 -15 -30 -80 0dB -1 -3 -15 -30 -80 -10 CLIP SIGNAL PROTECT CH A CH B -6 -3 ACTIVE PL -1 6001 PROFESSIONAL POWER AMPLIFIER 0dB CLIP SIGNAL PROTECT ACTIVE -6 -10 -15 -30 -80 0dB -1 -3 -15 -30 -80 -10 CLIP SIGNAL PROTECT CH A CH B -6 -3 ACTIVE PL -1 4601 PROFESSIONAL POWER AMPLIFIER 0dB CLIP SIGNAL PROTECT ACTIVE -6 -10 -15 -30 -80 0dB -1 -3 -15 -30 -80 -10 CLIP SIGNAL PROTECT CH A CH B -6 -3 ACTIVE PL -1 3301 PROFESSIONAL POWER AMPLIFIER 0dB OWNER' S MANUAL Important Precautions This symbol is used to alert the operator to follow important operating procedures and precautions detailed in documentation. This symbol is used to warn operators that uninsulated "dangerous voltages" are present within the equipment enclosure that may pose a risk of electric shock. 10. Power down & disconnect units from mains voltage before making connections. Never hold a power switch in the "ON" position if it won't stay there itself! [. . . ] Drawn in by dual 45 cubic feet-per-minute (CFM) fans on the rear panel, air flows through the cooling fins of the channel heat sinks (dissipating power transistor heat), then exhausts through the front panel slots. The "intelligent" variable-speed DC fans are controlled by heat sink temperature-sensing circuits. When the amplifier is turned on, the fans briefly "rev up, " then slow to an idle; this indicates that the temperature sensing circuits are operating normally. The fan speed increases only as required by heat sink temperatures, keeping fan noise to a minimum. Under extreme thermal load, the fans will force a very large volume of air through the heat sinks. If either heat sink surpasses the maximum allowed temperature, the sensing circuit will open the output relay, disconnecting the load from that channel. If the power transformer overheats, another sensing circuit opens both channel output relays until the transformer cools to a safe temperature. IMPORTANT: To ensure optimum cooling, periodically clean the amplifier fan filters (removable without tools). Also make certain that there is enough space around the front of the amplifier to allow the cooling air to escape. If the amplifier is rack-mounted, do not use doors or covers on the front of the rack; the exhaust air must flow out without resistance. If the amplifiers are to be housed in racks with closed backs, allow at least one (1) standard rack space of opening in the front of the rack for every four amplifiers. Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 Page 9 PL Connecting Inputs. Use either the XLR or 1/4-inch input connectors on the rear to supply audio signals to your Crest Audio PL Series amplifier. Both connectors accept balanced and unbalanced audio connections. (The PL Series amplifiers are configured standard with "Pin 2 hot" on XLR inputs. Please note that some other Crest Audio amplifiers are configured with "Pin 3 hot"). The unused connector can be used to jumper the audio input to another amplifier input. For more information, see the sections on Balanced 1/4" (TRS) & XLR Input Connectors, Input XLR Polarity, and Input Sensitivity. Speakers are connected using 5-way Output Binding Posts. Please note that on the PL9001, two pairs of 5way binding posts are provided for each channel, so that paralleling of speakers is possible. For more information, see the Output Connectors and Mode Selection sections. Page 10 Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 PL Mode Selection. The three-position, recessed Mode Select switch (located on the rear panel) configures the amplifier for either Stereo, Parallel or Bridged Mono Mode. Amplifiers are factory-configured for Stereo Mode. In Stereo Mode, both channels operate independently, with their input attenuators controlling their respective levels. [. . . ] If improperly packed, your amplifier may be damaged. For those with Internet access, please visit the Crest Audio website at: http://www. crestaudio. com Crest Audio PL Series Power Amplifiers Models PL3301, PL4601, PL6001, PL7001, PL8001, PL9001 Page 15 PL Appendices PL Appendix A - Amplifier Specifications 1kHz, 0. 01% THD+N 8 Stereo Power 4 Stereo Power 2 Stereo Power 8 Bridged Mono Power 4 Bridged Mono Power 20Hz-20kHz, 0. 1% THD+N 8 Stereo Power 4 Stereo Power 2 Stereo Power 8 Bridged Mono Power 4 Bridged Mono Power Max RMS Output Voltage (each channel) Max Peak Output Voltage Frequency Response (+0 / -0. 3dB, 1W/8) Power Bandwidth (rated power at 4, 1%THD+N) TourClass Protection THD+N (rated power, 4/1kHz) SMPTE IMD (rated power, 8, 60 Hz & 7kHz) Damping Factor (10-400Hz at 8) Input CMRR (1kHz) Standard Input Sensitivity (rated power at 8) Standard Voltage Gain (rated power @ 8) Input Impedance (balanced/unbalanced) Hum and Noise ("A" weighted, full power at 4) Crosstalk ("A" weighted, full power at 4) Class Input Connectors (per channel) Output Connectors (per channel) Filter Storage Power Supply (factory configured) Idle Current Draw (120V) 1/8 Power Curr. Draw (typical music cond. , 120V/4) 1/3 Power Curr. Draw (continuous music cond. , 120V/4) Thermal Emissions (1/8 Power, 4) Thermal Emissions (1/3 Power, 4) Cooling Controls LED Indicators (per channel) Construction Dimensions (Height x Width x Depth to rear rack ears) Gross Weight Net Weight Warranty PL3301 160W 250W N/A 500W N/A PL4601 250W 435W 500W 830W 1000W PL6001 400W 600W 750W 1200W 1500W PL7001 600W 900W 1000W 1800W 2000W PL8001 700W 1200W 1400W 2400W 2800W PL9001 1000W (. 03% THD+N) 1800W (. 03% THD+N) 2500W (. 03% THD+N) 3600W (. 03% THD+N) 5000W (. 03% THD+N) 150W 200W N/A 450W N/A 44V 62V 20Hz-20kHz, -3dB@135kHz 20Hz-20kHz, -. 9dB/+. 15dB <0. 01% <0. 01% 368:1 > - 60 dB 0. 775V X45 >20k/>10k -105dB > - 60dB AB 245W 400W 450W 800W 900W 58V 82V 20Hz-20kHz, -3dB@135kHz 20Hz-20kHz, -. 9dB/+. 5dB <0. 01% <0. 01% 550:1 > - 60 dB 0. 775V X61 >20k/>10k -105dB > - 60dB AB 350W 500W 600W 1000W 1200W 73V 103V 20Hz-20kHz, -3dB@135kHz 20Hz-20kHz, -1. 1dB/+0dB <0. 01% <0. 01% 400:1 > - 60 dB 0. 775V X68 >20k/>10k -105dB > - 60dB H 550W 800W 900W 1600W 1800W 82V 116V 20Hz-20kHz, -3dB@135kHz 20Hz-20kHz, -. 84dB/+0dB <0. 01% <0. 01% 700:1 > - 60 dB 0. 775V X86. 5 >20k/>10k -105dB > - 60dB H 650W 1100W 1100W 2200W 2200W 90V 126V 20Hz-20kHz, -3dB@135kHz 20Hz-20kHz, -. 23dB/+. 85dB <0. 01% <0. 01% 800:1 > - 60 dB 0. 775V X97. 5 >20k/>10k -105dB > - 60dB H 950W 1700W 2400W 3400W 4800W 99V 140V 20Hz-20kHz, -3dB@150kHz 20Hz-20kHz, -. 2dB/+. 2dB <0. 03% <0. 01% 800:1 > - 70dB 0. 775V X115 >20k/>10k -115dB > - 80dB H ACL, IGM, AutoRamp, short circuit, DC voltage, turn-on/off transient, current inrush, sub/ultrasonic input Female XLR (pin 2+, configurable for pin 3+), TRS (tip+) Five-way output binding posts (two pair on model PL9001) 20, 000 µF 100V-240V, 50-60Hz 1. 2A 3. 25A 5. 5A 9. 0A 1119 BTU/hr 1607 BTU/hr 27, 200 µF 100V-240V, 50-60Hz 1. 4A 6. 8A 10. 0A 15. 0A 2030 BTU/hr 2726 BTU/hr 68, 000 µF 100V-240V, 50-60Hz 1. 6A 6. 0A 13. 0A 18. 0A 2630 BTU/hr 3713 BTU/hr 80, 000 µF 100V-240V, 50-60Hz 2. 0A 8. 6A 16. 0A 21. 0A 3250 BTU/hr 4341 BTU/hr 140, 000 µF 100V-240V, 50-60Hz 2. 8A 10. 5A 23. 0A 30. 0A 4750 BTU/hr 6300 BTU/hr 144, 000 µF 100V-240V, 50-60Hz 3. 0A 12. 0A 25. 0A 36. 0A 7125 BTU/hr 9450 BTU/hr Two rear panel variable speed DC fans, filters detachable without tools Front panel: 2 attenuators, magnetic circuit breaker/power switch; Rear panel: signal ground lift & mode switches; PL9001: XLR polarity & input sens. /voltage gain switches) Clip/Limit, Signal, Temp/DC, Active 2U chassis: 16 gauge steel; 3U chassis: 14 gauge steel. [. . . ]