User manual QSC AUDIO 215PCM BROCHURE

[. . . ] The 215PCM can supply extreme SPL within the recommended bandpass of 35-150 Hz (-3 dB). The 215PSB is a powered subwoofer, but without the "top-box" electronics. The power and processing electronics of the 215PCM are contained in a backpack mounted on the rear of the subwoofer enclosure. [. . . ] The drivers face each other and move equally but in opposite directions. The net effect is that the driver forces counterbalance, minimizing vibration in the cabinet. Key Features Highest output to size ratio available 3000W powerplant for sub (215PCM and rigidity of the cabinet walls raises the enclosure's natural resonances to frequencies higher than the subwoofer's operating range, so the cabinet acts more like an ideal enclosure. Composilite construction significantly reduces the weight of the subwoofer, making it easier and more cost-effective to transport. The system is designed for single-person portability; by leaning the cabinet back onto its two casters and grasping the handles at the upper rear corners, one person can easily roll it across a floor or other flat surface. Sir Isaac Newton's third law of motion states that to every action, there is an equal and opposite reaction. Subwoofer cones have significantly higher mass than those of other types of speaker driver, and the low frequencies they reproduce require large displacements. Thus, the forces that move the cone forward and backward also make the enclosure move the opposite way in reaction. The enclosure's vibrations tend to turn its walls into radiating surfaces and its supporting feet into walking appendages. However, a lightweight enclosure like the 215PSB) ­ 3600W, 2 channel powerplant for accompanying top enclosures (215PCM) User configurable DSP for both sub and Port top enclosures with eight storable presets for each (215PCM and 215PSB) Removable backpack houses processing and amplification for system (215PCM and 215PSB) Dual High power 15" drivers rated at 1400 watts each Diametrically opposed drivers for 18. 38" increased efficiency and output Cored Composite construction results in greater rigidity, increased output, reduced off axis resonances and lighter weight Weather and UV resistant durable enclosure Reinforced, integral suspension fly track Port 24. 0" for vertical or horizontal hanging QSControl compatible for remote monitoring and control Integrated heavy-duty pole cups on top and side for pole mounting top boxes The movement of the two separate drivers counteract, reducing enclosure vibration. ISIS Series 215PCM / 215PSB / 215SB System Specifications Description Frequency Range Recommended Bandpass: Frequency Response: Usable Frequency Range: Calculated Peak Output1: Measured Continuous Output2: 1300 W RMS, 2 hours (AES) 1000 W RMS, 8 hours (IEC) 800 W RMS, 100 hours (IEC) Specifications 215PCM: Comprised of the 215SB Subwoofer Cabinet with a "backpack" containing two QSC DSP-3 24-bit Signal Processors, 1 vibration damped QSC PL230 3000 Watt amplifier and 1 vibration damped QSC PL236 3600 Watt amplifier. All interconnections for the audio signals and AC power are complete inside the backpack. NOTE: Regular production PL230 and 236 amplifiers are not recommended replacements for the amplifiers in your 215PCM. 35 - 150 Hz (±3 dB) 36 - 360 Hz (-3 dB) 29 - 440 Hz (-10 dB) 141 dB SPL 131 dB SPL Maximum Output Impedance Power Handling 4 ohms (nom. ) 3. 7 ohms (min. ) 23. 3 ohms (max. ) Sensitivity Nominal Coverage Transducers 101 dB half-space, 95 dB full space, 35 - 100 Hz, 1W, 1m Omnidirectional (100 Hz) Two 15-inch (394 mm) high efficiency subwoofer drivers. Subwoofer: One vibration damped QSC PL230 amplifier in bridge mode, 3000 Watts at 4 ohms Top Boxes: One vibration damped QSC PL236 amplifier, 2-Ch. 's, 1300 Watts per Ch. (One Processor per amplifier) Neutrik NL4MP Standard Bridge Mono Wiring Pin 1+= Positive Input Signal Pin 1­ = Negative Input Signal AC Power - NEMA L5-30 receptacle CH1/CH2 Input - female XLR, Input 3 (discrete mono) - female XLR Parallel Out (discrete mono) - male XLR wired directly in parallel with Input 3 connector Output to Top Boxes - two Speakon NL4MP receptacles: CH1 wired for 4-wire biamp use CH2 wired for 2-wire (right channel) normal use Both Processors feature: Post-Processor audio outs (3-wire, detachable terminal block connectors), one for each channel. [. . . ] Two QSC DSP-3 Processors, 24 bit, 48 kHz, one for each amplifier 20 Hz - 10 kHz ±0. 3 dB (XLR inputs on 215PCM rear panel) 20 Hz - 20 kHz ±0. 7 dB (XLR inputs on 215PCM rear panel) 20 Hz - 20 kHz±0. 2 dB (if using DataPort input on Processors) <0. 01% THD+N @ +4 dBu out 1. 00 millisecond >93 dB unweighted, 20 Hz - 20 kHz, 1. 5V, 4V and 9V sensitivity >88 dB unweighted, 20 Hz - 20 kHz, 18V sensitivity 1 - Calculated maximum peak SPL at 1 meter distance, half-space, speaker operating at rated RMS power with 6 dB crest factor pink noise input, 35 - 100 Hertz. 2 - Measured maximum RMS SPL referenced to 1 meter distance, loudspeaker operating at rated RMS power with 6 dB crest factor pink noise input, 35 - 100 Hertz. Measurements taken at 2 meters, half-space, after 15 minutes of full power operation. ISIS Series 215PCM / 215PSB / 215SB Amplifier Specifications Output Power in watts Subwoofer Amplifier (PL230 type) Top Box Amplifier (PL236 type) FTC: 4 Ohms, 1 kHz, 1% THD EIA: 1 kHz @ 1% THD 8 Ohms per channel 4 Ohms per channel 2 Ohms per channel Specifications 3000 Watts 8 Ohms per channel (20 - 20 kHz, 0. 03% THD) 4 Ohms per channel (20 - 20 kHz, 0. 05% THD) 725 Watts 1100 Watts 800 Watts 1300 Watts 1850 Watts Less than 0. 01% <0. 015% <0. 01% Distortion (both amplifiers) Frequency Response (both amplifiers, without processors, at 10 dB below rated output power) Damping Factor (both amplifiers) Noise (unweighted, 20 - 20k Hz, both amplifiers) Voltage Gain SMPTE-IM Typical, 10 dB below rated power, 20 - 20 kHz Typical, full rated power, 5 kHz. [. . . ]