User manual PEAVEY DPC 1000

[. . . ] sIGNAL LED (3) Bi-colored LED used to indicate the signal status of a channel. This could be caused by bad cables or the Input Sensitivity (2) being set to zero. When the switch is pressed in, the unit is placed in bridge mode (bridge mode is explained later in this manual) and uses only the Channel A input. When the switch is out, the amplifier operates in stereo mode utilizing both inputs. [. . . ] ) INSTALLATION AND CONNECTION The DPC professional series of power amplifiers is designed for durability in commercial installations and has the quality of performance required in studio. These units are a standard rack-mount configuration height, and each is cooled by a variable-speed internal fan. Additionally, the level controls and selector switches are on the front panel. The front panel also contains LED indicators for power and DDT activation, and the mains power switch. INDUSTRIAL AND COMMERCIAL INSTALLATIONS For commercial and other installations where sustained high power operation is required, the amplifiers should be mounted in a standard 19" rack. It is not necessary to leave a rack space between each amplifier in the stack since each fan pulls air in from the rear and exhausts the hot air out the front. However, an adequate cool air supply must be provided for the amplifier when rackmounted. The internal fan must have a source of air that is not preheated by other equipment. If cool, the amplifier will start up in low speed fan operation and will normally stay at low speed operation unless sustained high power operating levels occur. Then, as the amplifier heat sinks heat up, the automatic thermal sensing circuitry will increase the fan speed. Depending upon signal conditions and amp loading, the fan speed may increase to a maximum value, or it may decrease to a minimum value. Threshold of compression, then, is clipping itself, and no specific threshold control is used. This technique effectively utilizes every precious watt available for the power amplifier to reproduce the signal, while at the same time minimizing clipping and distortion and thus significantly reducing the potential of loudspeaker degradation and damage. the DDT system is an automatic hands-off approach to the problem of power amplifier clipping. Since the DPC Series power amplifiers use a fuse for "over current" protection, the DDT compression system plays even a more important role in continuous performance by preventing each channel from clipping and overload. Continuous operation at clipping can cause the fuse to blow, but with the DDT activated, this problem is minimized. For this reason, you should always have the DDT compression system enabled. Stereo mode, both channels driven 2 ohms, 1, 000 W power channel peak music power 4 ohms, 700 W power channel peak music power 8 ohms, 500 W power channel peak music power Bridge mode 4 ohms, 2, 000 W power peak music power 8 ohms, 1, 400 W power peak music power Because of this circuitry, the amplifier cannot slew rate limit. Stereo mode, both channels driven 1 kHz, 4 ohms rated output, less than 0. Stereo mode, both channels driven @ rated output power, 4 ohms 10 A @ 120 V AC Stereo mode, both channels driven Below rated output power 4 ohms, greater than 95 dB (A-weighted) Stereo mode, both channels driven 4 ohms, 100 Hz, greater than 500 Specifications subject to change without notice. PEAVEY ONE-YEAR LIMITED WARRANTY/REMEDY PEAVEY ELECTRONICS CORPORATION ("PEAVEY") warrants this product, EXCEPT for covers, footswitches, patchcords, tubes and meters, to be free from defects in material and workmanship for a period of one (1) year from date of purchase, PROVIDED, however, that this limited warranty is extended only to the original retail purchaser and is subject to the conditions, exclusions, and limitations hereinafter set forth: PEAVEY 90-DAY LIMITED WARRANTY ON TUBES AND METERS If this product contains tubes or meters, Peavey warrants the tubes or meters contained in the product to be free from defects in material and workmanship for a period of ninety (90) days from date of purchase; PROVIDED, however, that this limited warranty is extended only to the original retail purchaser and is also subject to the conditions, exclusions, and limitations hereinafter set forth. cONDITIONS , EXCLUSIONS , AND LIMITATIONS OF LIMITED WARRANTIES These limited warranties shall be void and of no effect , if: a. [. . . ] 11 The power supply cord should be unplugged when the unit is to be unused for long periods of time. If this product is to be mounted in an equipment rack, rear support should be provided. The vinyl covering used on some units can be cleaned with a damp rag or an ammonia-based household cleaner if necessary. Care should be taken so that objects do not fall and liquids are not spilled into the unit through the ventilation holes or any other openings. [. . . ]