User manual CLARION APX280M

[. . . ] APX280M manual. qxd 3/12/2004 12:55 PM Page 1 APX280M manual. qxd 3/12/2004 12:55 PM Page 2 APX280M Power System Amplifier INTRODUCTION The Clarion APX280M is a full-featured two-channel amplifier incorporating the following features: · Specially coated circuit boards, that resist mold, mildew and moisture damage. · Pulse-Width Modulated (PWM) MOSFET power supply for maximum performance with minimal distortion. · Remote turn-on with "soft start" muting to prevent turn-on "thump". · Advanced circuitry design featuring bridgeable and mixed mode operation for use in various system configurations. [. . . ] Disconnect the negative (-) lead of the battery (or batteries) before making any power connections. When making connections, be sure that each connection is clean and secure. Insulate final connections with electrical tape or shrink tubing. Failure to do so may damage your equipment. A good ground is critical for the performance of the amplifier. A ground wire should be run directly from the battery to the amplifier. Use black insulated 10gauge or larger wire for the amplifier's ground (-) power lead. Add an additional fuse holder and fuse at the positive (+) terminal of the battery. The fuse rating should equal the total current consumption at full output of the amplifier(s). Use red insulated 10-gauge or larger wire for the amplifier's positive (+) power lead. Do not install the fuse until the complete installation has been performed. When replacing the amplifier's fuse, always use one having the same amperage rating. Substituting a higher rated fuse or a slow-blow type can result in serious damage to the amplifier. 4 APX280M manual. qxd 3/12/2004 12:55 PM Page 5 Operation/Installation Manual 7. When creating passage holes for power cables, RCA's cords, and speaker wires, use grommets to eliminate any sharp edges created during drilling. This will protect the wire from being nicked and causing a short circuit. Extra cable can cause signal loss and act as an "antenna" for noise. Use only high-quality RCA cords that are no longer than necessary. In multiple amplifier systems, it is recommended to use a relay on the remote turn-on lead of the radio. WIRING AND APPLICATIONS The Clarion APX280M 2-channel marine audio amplifier can be used in a variety of system applications. Here are some examples to help plan your own installation. Bridged - Mono Subwoofer System Set X-Over Mode to LP and adjust FREQ to speaker specifications. Subwoofer 4 Ohms Figure 4 In this application the amplifier is bridged for mono operation to drive a subwoofer. 5 APX280M manual. qxd 3/12/2004 12:55 PM Page 6 APX280M Power System Amplifier 2-Channel Full-Range, Satellite, or Subwoofer Stereo System (Set INPUT SELECT Switch to STEREO) Set X-Over Mode as shown. Set X-Over Mode as shown; adjust FREQ to speaker specifications. Set X-Over Mode as shown; adjust FREQ to speaker specifications. Figure 5 In this application, the amplifier is used in stereo and drives two full-range (or satellite or subwoofer) speakers. NOTE: A passive crossover must be used with satellite speakers. [. . . ] Power Output 2-Ohm Stereo Output Bridged Power Dimensions Current Consumption at output @ max power 20Hz ~ 20kHz >100db . 05% all channels driven 250mV ~ 2. 5 V 500mV ~ 5V 320W (160Wx 2) 160W (80w x 2) @ . 08% THD 125W x 2 @ . 05% THD 300W x 1 @ . 05% THD 2-1/8"H x 8-1/4"W x 9" L 28A @ 382 Watts 10 APX280M manual. qxd 3/12/2004 12:55 PM Page 11 Operation/Installation Manual CLARION LIMITED WARRANTY For USA and Canada only If purchased from an authorized Clarion dealer, this product is warranted against all defects in materials and workmanship for a period of one (1) year from the date of original purchase. Clarion ProAudio products, except for speakers, are covered by a two (2) year limited warranty when purchased from and installed by an authorized Clarion dealer. ALL PURCHASES OF CLARION PRODUCTS FROM NON-AUTHORIZED CLARION DEALERS ARE SUBJECT TO FURTHER WARRANTY RESTRICTIONS AS DESCRIBED BELOW. The conditions of this limited warranty and the extent of responsibility of Clarion Corporation of America ("Clarion") under this limited warranty are as follows : 1. [. . . ]