P75 Dual Source Power Amplifier Installation Manual
SAFETY INSTRUCTIONS CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE THE COVER. NO USERSERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL. WARNING: TO PREVENT FIRE OR SHOCK HAZARD, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE. THIS APPLIANCE SHALL NOT BE EXPOSED TO DRIPPING OR SPLASHING WATER AND THAT NO OBJECT FILLED WITH LIQUID SUCH AS VASES SHALL BE PLACED ON APPARATUS..
CLEARANCE REQUIREMENTS / TABLE OF CONTENTS Clearance Requirements Table of Contents When installing the P75 Amplifier, the clearances shown here MUST be kept for proper ventilation of the amplifier. Safety Instructions................................................................................................................... 2 Product Overview ................................................................................................................... 4 Front and Rear Panels.................
PRODUCT OVERVIEW Introduction Front Panel Controls The Russound P75 is a 2-channel dual source power amplifier with autosource switching. It features two audio line inputs with a loop out to another zone, receiver, or device from the Line 2 source. On the front panel of the P75 amplifier are the power button plus speaker selector, a master balance and a master volume adjustment. The P75 amplifier is rated at 75 watts per channel into 4 ohms, and 60 watts into 8 ohms.
FRONT AND REAR PANEL Power button Speaker selector P75 Front Panel Power LED Indicator Primary Input Volume control Balance control Unswitched outlet 120VAC Secondary Input/Output Stereo / Bridge Switch Manual / Auto On switch Speaker 'A' Output Speaker 'B' Output Fuseholder P75 Rear Panel Russound P75 Installation Manual 5
SYSTEM CONFIGURATION - STEREO MODE WITH DUAL SOURCES The P75 has dual source capability. If two sources are used, connect the source you want to listen to most of the time to the Line 2 (secondary) input and the source you listen to less constantly to the Line 1 (primary) input. Whenever the Line 1 (primary) source becomes active, that signal will take priority over the distributed audio signal on the Line 2 (secondary) input.
SYSTEM DIAGRAM - STEREO MODE Multiroom Controller (secondary source) P75 Amplifier Line Out RCA Cable Line Out RCA Cable Speaker Cables DVD Player (primary source) 8 Ohm Speakers Stereo Mode Configuration with Dual Sources (CD player is primary source) Russound P75 Installation Manual 7
SYSTEM CONFIGURATION - BRIDGED MODE Bridge Mode 5. Restore power to the amplifier. In this mode both the left and right channels are combined for a higher power mono output. 6. On the front panel, set the Balance to center, and set the Volume to Min (minimum). Adjust the output with the volume control to the desired level. NOTE: The minimum impedance for the total load connected to a pair of channels in the bridge mode is 8 ohms. 7. Set the Balance control on the front panel to Center. 1.
SYSTEM CONFIGURATION - BASIC SPEAKER CONNECTION SYSTEM CONFIGURATION - EXTERNAL VOLUME CONTROL System Configuration Using Speaker A and B Connection System Configuration with External Volume Controls The P75 amplifier has a minimum 4 ohm load in stereo mode. Connect up to one pair of 8ohm speakers on A and one pair of 8 ohm speakers on B. The P75 amplifier can be used for multiple pairs of speakers with impedance matching volume controls and/or speaker selectors.
TECHNICAL SPECIFICATIONS P75 Amplifier Continuous Output Power: (<1.0% THD+N) @ 1kHz Signal-to-Noise Ratio: Frequency Response: Input Sensitivity: Crosstalk: Power Requirements: Dimensions: Weight: 10 60W per channel at 8 ohms 75W per channel at 4 ohms 160W bridged mono at 8 ohms 100dB A-weighted 10Hz to 30kHz +0.0dB/- 3.0dB @ 8 ohms, 1 W 900mV for 50W at 8 ohms > 70dB @ 1 kHz 120VAC 60Hz 4.2A 16.5” W x 8”D x 2.5”H (41.9 x 20.3 x 6.4 cm) 10.4 lbs. (4.
WARRANTY Warranty The Russound P75 Amplifier is guaranteed against all defects in materials and workmanship for one (1) year from the date of purchase. During this period, Russound will replace any defective parts and correct any defect in workmanship without charge for either parts or labor. For this warranty to apply, the unit must be installed and used according to its written instructions. If service is necessary, it must be performed by Russound.
P75 Dual Source Power Amplifier Installation Manual ©2016 Russound. All rights reserved. All trademarks are the property of their respective owners. Specifications are subject to change without notice. Russound, Inc. 1 Forbes Road, Newmarket, NH 03857 tel 603.659.5170 • fax 603.659.5388 email: tech@russound.com www.russound.com 28-1387 11.21.16, Rev.
