User manual ELECTRO-VOICE CPS-2T

[. . . ] The CPS-2T has built-in limiters to protect speakers from the deleterious effects of amplifier clipping. The limiter's action is controlled by very sophisticated input/output comparators which are designed to preserve the sonic integrity of the source. The CPS-2T has electronically-balanced XLR type and removable Phoenix Contact "Euro-style" input connectors in parallel that allow easy, problem-free connections and signal routing. The amplifier has an input routing switch that allows selection of either normal dual-channel operation or parallel mono operation, which routes an input to both channels but still allows independent level control. [. . . ] Optional input transformers may be added to the amplifier to provide for even greater immunity from interference. The CPS-2T Phoenix Contact "Euro-style" removable output connectors provide sturdy, reliable connections and allow use of heavy wire for loss-free signal transmission. There are easily identifiable connections for the direct outputs and for the transformer-isolated 25, 70. 7 and 100-volt outputs which may be used simultaneously. To prevent ground loops from occurring, the CPS-2T is equipped with a ground-lift switch. When the amplifier is operated in a rack with units of different ground potential, the switch may be adjusted to eliminate hum. Separate dB-scaled potentiometers on the rear panel of the CPS-2T allow easy regulation of gain. There is easily readable nomenclature to ensure repeatable control settings. The Electro-Voice CPS-2T is an excellent choice for high-quality professional sound system applications which require excellent sound quality, speaker protection and the highest level of construction quality and long-term reliability. Commercial Stereo Power Amplifier COMMERCIAL Architects' and Engineers' Specifications The power amplifier shall be a dual-channel model of solid-state design employing high-power output devices capable of driving normal speakers and 25 ­ 100 volt lines. It shall be capable of operating from a 120/230/240-V, 50/60 Hz ac line. The power amplifier shall meet many worldwide product safety requirements including Underwriter's Laboratories UL-813 standard, Canadian Standards and CE standards. 1, 200 watts Dual Mode, 8 Ohms: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 330 watts Transformer-Isolated Outputs, Dual Mode: 590 watts at 100 V 580 watts at 70 V 570 watts at 25 V Transformer-isolated Outputs, Bridged Mode: 1, 180 watts at 200 V 1, 160 watts at 140 V 1, 140 watts at 50 V Maximum RMS Voltage Swing (reference 1 kHz, 1 % THD), Direct Outputs: 52 Volts Transformer-Isolated Outputs: 121 Volts at 100 V 88 Volts at 70 V 32 Volts at 25 V Frequency Response (+0, - 3 dB, reference 1 kHz/1 watt): 45 - 30, 000 Hz at direct outputs 45 - 22, 000 Hz at transformer-isolated outputs Voltage Gain (reference 1 kHz), 30 dB at direct outputs 42 dB at 100 V 39 dB at 70 V 30. dB at 25 V Input Sensitivity, 1 kHz, Dual Mode for 500 watts into 4 Ohms: 0 dBu (775 mV) Maximum Input Level (reference 1 kHz): +20 dBu (7. 75 V) Input Impedance (per channel, 20 -20, 000 Hz), Balanced: 20, 000 ohms Total Harmonic Distortion (at rated output power, measurement bandwidth 80 kHz, reference 1 kHz): <0. 05% at direct outputs <0. 1% at 100 V <0. 2% at 70 V <0. 3% at 25 V IMD (SMPTE) (60 Hz/7 kHz, typical, rated power): <0. 08% at direct outputs <0. 1% at 100 V <0. 3% at 70 V <0. 5% at 25 V Slew Rate, (at 1 kHz): 30 V/microsecond Damping Factor, Any Mode, (at 100 Hz /1 kHz): . . . . . . . . . . . . . . . . . . >300 / >200 Signal to Noise Ratio: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . > 100 dB Amplifier Protection: TSP (Transformer Saturation Protection); Audio limiters; over-temperature; dc, excessive hf, excessive back-EMF; inrush current limiters; shorted loads; peak current limiters Load Protection: Start-up/shutdown transients; dc fault; infrasonic and ultrasonic filters; Low ac line voltage; nonlinear signal limiters; transformer saturation protection Cooling System: Front-to-rear airflow with two 3-speed fans Controls and Switches, Rear: Two calibrated level controls; input routing (Dual/Parallel); chassis ground switch (Grounded/Ungrounded); bridged mode switch (Bridged/ Normal); Power Switch (On/Off) Front: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power switch (On/Off) Front-Panel Indicators: Two LED's per channel (4 total) for signal present -and limiter on, protect indicator and power on Connections, Input: 3-pin female XLR-type connectors for each channel in parallel with a removable 3-pin Phoenix Contact "Euro-style" terminal block connector for easy signal routing. The XLR connectors are wired according to the EEC 268 standard: pin 1 shield, pin 2 positive, pin 3 negative Output: Phoenix Contact "Euro-style" terminal block connector #KGS-MSTB 2. 5/12 for direct-coupled and transformeri solated outputs for AWG 12-24 wire. Power: 16-gauge 3-wire IEC standard removable power cable Remote Power "On" at pin 2 of Phoenix Connector. Operating Voltage: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 120, 230 V, 50/60 Hz ac Power Consumption (both channels operating in dual mode at 1/8 maximum output power at 4 ohms): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] 120, 230 V, 50/60 Hz ac Power Consumption (both channels operating in dual mode at 1/8 maximum output power at 4 ohms): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 870 watts Dimensions, Height: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5. 25 in (132. 5 mm ) Width: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19. 0 in (483 mm) Depth: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ]