User manual PEAVEY DPM 4

[. . . ] Before using this appliance, read the operating guide for further warnings. WARNING: When using electrical products, basic cautions should always be followed, including the following: Do not use this apparatus near water. Do not block any of the ventilation openings. install in accordance with manufacturer's instructions. [. . . ] The balanced line-level input(s) allow the use of a 1/4" phone plug; either a standard, single-ended TS (tip-sleeve) plug; or a balanced TRS (tip-ring-sleeve) type plug. Or you may use either a male or female XLR plug. Do not connect cables to the jacks while the units are ON and the volume is turned up!While the standard, single-ended 1/4" phone plug will work well and the balanced input circuitry will provide some interference rejection, a balanced cable using either the balanced TRS 1/4" phone plug or the XLR plug will provide superior performance. Plugging into the RCA jacks or plugging a mono, 1/4" plug into the combo jack will cause the thru jack to operate in unbalanced mode. Sometimes, with difficult interference problems, it will be helpful to lift the shield ground on a balanced cable at the DPM 4 end only. This can be accomplished via the convenient ground lift switch (10a) found underneath the input jack group. Always turn the volume controls down before plugging and unplugging cables or switching the ground lift switches. These cables typically have better shielding and materials and will provide greater long-term reliability. It is also a good idea to leave some slack at each end of the cable connection and tape the cables down or run them under a cable guard to avoid accidents. When driving the DPM 4 from a mixer, it may be advantageous to reduce the input sensitivity by turning the volume control to the halfway point. Use of the left channel in and out on each of the DPM 4's assures proper overall system operation. This setup can be repeated for each DPM 4 connected for any number of channels. Multiple DPM 4's (or other powered products) The DPM 4 is designed with multiple, parallel inputs which allow daisy-chaining from one DPM 4 to another. Connect the first cable from the mixer output to the first DPM 4. Then, connect a cable from the first DPM 4's thru jack to the second DPM 4's input. This connection can be continued for several units, depending on the total length and capacitance of the cables. With a low source impedance source output from a typical mixer and by using quality, balanced cables, several DPM 4s can be daisy-chained from one output using 30' or 40' cables without obvious problems or distortion. Do not connect cables to the jacks while the units are ON and the volume is turned up. Applications The DPM 4 can be used in a variety of applications such as sound reinforcement, public address or musical playback. DJ use is also supported when using in the three-channel stereo mode. Of course, using the DPM 4 in the traditional role, strictly as a powered subwoofer, is also a great choice. [. . . ] Subwoofer section alone 1500 Watts peak dynamic power, bridged mode 1000 Watts continuous @ less than 0. 3% distortion L & R Output section alone: 750 Watts peak dynamic power either channel All channels loaded full Subwoofer section: 750 Watts peak dynamic power 500 Watts continuous L & R Output section: 375 Watts peak dynamic power either channel 250 Watts continuous One combo female XLR/ 1/4" phone jack providing balanced operation. This unit is NOT designed for over head . Satellite stand mounting via built-in mount, and four large rubber feet for floor use. [. . . ]