4-Zone / 8-Channel Amplifier DPA-4.8 Instruction Manual 4 1 POWER 2 3 Z O N E — 8 C H A N N E L A M P L I F I E R 4 ZONE DPA-4.
WARNINGS “WARNING” “ TO REDUCE THE RISK OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.” “CAUTION” “ TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER. NO USER - SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
the four stereo pairs can be bridged to two stereo pairs for higher output power. The DPA-4.8 power output is 50 watts per channel into 8 ohms, and 75 watts into 4-ohms. Bridged adjacent outputs provide 100 watts of power into 8-ohms and 150 watts of power into 4-ohms. All this power is backed by two high output toroidal transformers.
POSSIBLE SYSTEM CONFIGURATIONS The DPA-4.8 can be configured as an audio distribution system, or used as the main amplifier for a home theater system. When used with an audio distribution preamp, each zone can independently drive one of several different sources by using each zones’ individual line audio inputs. As a home theater amplifier the DPA-4.8 output can be bridged to provide high power out for the front channel.
4 1 2 POWER 3 Z O N E — 8 C H A N N E L A M P L I F I E R 4 ZONE DPA-4.8 FRONT PANEL Stereo / Mono Switch: This selects stereo or mono for the speaker outputs. In the Mono position each Left and Right output is Mono. The Mono selection will also be used to select operation for bridged mode. When Mono is selected the inputs are summed and when in stereo the inputs remain independent to provide a stereo output. See Bridged Operation pg6 for further details.
BRIDGED OPERATION LEFT CHANNEL LINE INPUT ZONE 4 L R RIGHT CHANNEL VOLUME CONTROL L LINE L BUS GAIN BUS GAIN R R 2 1 3 4 ∞ MUTING DELAY TIME SPEAKERS STEREO R+ R– L– L+ R+ R– L– L+ STEREO BRGD MONO* RIGHT CHANNEL LINE INPUT LINE INPUT LINE SET THIS SWITCH TO BRGD MONO FOR BRIDGING 6 L R LINE INPUT LEFT CHANNEL VOLUME CONTROL LEFT SPEAKER EIGHT OHM ZONE 3 SET THIS SWITCH TO BRGD MONO FOR BRIDGING BRGD MONO* 2 1 3 4 ∞ MUTING DELAY TIME SPEAKERS RIGHT SPEAKER EIGHT OHM
SPECIFICATIONS Audio power output: Continuous 50W @ 8 ohms, 75W @ 4 ohms. Frequency response: 20HZ to 20KHZ -0.3dB. Total harmonic distortion: 0.05% 8 Ohm, .075% 4 Ohm Input sensitivity: 400mV line Input impedance: 22k Line Input Signal to noise ratio: 85dB WARRANTY The Russound DPA-4.8 is fully guaranteed for two (2) years from the date of purchase against all defects in materials and workmanship.
5 Forbes Rd. Newmarket, NH 03857, USA ☎ 603.659.5170 • Fax 603.659.5388 e-mail: tech@russound.