DA28R Distribution Amp / Router Operation Manual Biamp Systems, 10074 S.W. Arctic Drive, Beaverton, Oregon 97005 U.S.A. an affiliate of Rauland Borg Corp. (503) 641-7287 www.biamp.
blank print update September 7, 2005
DA28R INTRODUCTION TABLE OF CONTENTS Front & Rear Panel Features pg. 2 Logic Input & Transformers pg. 3 Applications Specifications & Block Diagram Warranty pgs. 4 & 5 pg. 6 The DA28R is a 2-in by 8-out distribution amp/router. Each input channel accepts mic or line-level signals, and includes phantom power for condenser microphones. All outputs are electronically balanced & floating line-level, with 600 ohm drive capability.
FRONT & REAR PANEL FEATURES DA28R on OUTPUTS DA28R INPUTS BIAMP SYSTEMS invert logic phantom invert logic phantom ~ 27V 50/60 Hz Portland, Oregon an affiliate of Rauland-Borg Corp.
LOGIC INPUTS & TRANSFORMERS 14 invert logic phantom invert logic phantom 25 invert logic phantom invert logic phantom 1 invert logic phantom invert logic phantom 13 invert logic phantom invert logic phantom Logic Inputs: Logic Inputs 1~16 are on pins 1~16, and a common ground is on pins 17~25. Logic Inputs 1~8 affect routing of Channel 1 signal to Outputs 1~8, respectively. Logic Inputs 9~16 affect routing of Channel 2 signal to Outputs 1~8, respectively.
APPLICATIONS EIGHT ZONES OF PAGE-OVER-MUSIC ROUTING paging microphone optional music assign switches background music source 1 COMPACT 2:50 DIGITAL AUDIO zone paging switches DA28R OUTPUTS DA28R INPUTS BIAMP SYSTEMS invert logic phantom invert logic phantom Portland, Oregon an affiliate of Rauland-Borg Corp.
APPLICATIONS TWO INDEPENDENT 1x4 DISTRIBUTION AMPS input 1 input/output assignment via hard-wired jumpers input 2 DA28R OUTPUTS INPUTS Portland, Oregon an affiliate of Rauland-Borg Corp. level level level level level level level level trim trim pad output 8 output 7 output 6 output 5 output 3 output 2 output 1 four outputs from input 1 (ch 1) CH 2 CH 1 both ch 1 & ch 2 logic inputs set for normal operation.
SPECIFICATIONS & BLOCK DIAGRAM Frequency Response (20Hz~20kHz): +0/-1dB Maximum Input: +24dBu THD+Noise (20Hz~20kHz): < 0.03% Maximum Output (balanced): +24dBu Noise Floor (20Hz~20kHz @ unity gain): < -75dBu Maximum Gain (mic in to balanced out): 79dB Power Consumption: 10 Watts max. Dimensions: Input Impedance (balanced): height 1.75 inches (44mm) mic input 4.3k ohms width 19 inches (483mm) line input 5.6k ohms depth 7.
WARRANTY BIAMP SYSTEMS IS PLEASED TO EXTEND THE FOLLOWING 5-YEAR LIMITED WARRANTY TO THE ORIGINAL PURCHASER OF THE PROFESSIONAL SOUND EQUIPMENT DESCRIBED IN THIS MANUAL 1. BIAMP Systems warrants to the original purchaser of new products that the product will be free from defects in material and workmanship for a period of 5 YEARS from the date of purchase from an authorized BIAMP Systems dealer, subject to the terms and conditions set forth below. 2.
