User manual BIAMP IWA250
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Manual abstract: user guide BIAMP IWA250
Detailed instructions for use are in the User's Guide.
[. . . ] CAUTION: These installation instructions are for use by qualified service personnel only. To reduce the risk of electric shock, do not perform any servicing other than that contained in the operating instructions unless you are qualified to do so.
IWA 250
In-Wall Powered Mixer
Installation Instructions
Biamp Systems | 9300 S. W. Gemini Drive | Beaverton, OR | 97008 | USA | +1. 503. 641. 7287 | www. biamp. com
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5Jul06
IWA 250
TABLE OF CONTENTS Front Panel Features Installation Remote Control Applications Specifications & Block Diagram Warranty pg. 12 INTRODUCTION The IWA 250 In-Wall Powered Mixer provides an 8 input/2 output mixer plus emergency page interrupt, a 9-band graphic equalizer, and a 250 Watt power amplifier with outputs for standard and distributed speaker systems. [. . . ] Main Equalizer: This 9-band graphic equalizer adjusts the frequency response (tonal balance) of signals sent to the Main Amplifier. Each control provides ±15dB boost/cut at the designated center frequency. From the factory, the Main Equalizer receives signal from the mixer Main Out. Cables should route through appropriate conduit, raceway, or service entrance cable fitting. Mount the backbox with the internal cable tray assembly located on the right side. The "IWB" can be mounted between standard 16" center studs, using the six mounting holes on each side of the box. The "SMB" can be mounted onto standard 16" center studs, using the four outer-most "keyhole" slots, or onto other suitable surfaces, using the six inner-most "keyhole" slots. Wire Routing: Wiring that carries signals of dramatically different voltages must be separated by as much distance as possible. Microphone and line level wiring should never be run with loudspeaker or power wiring. To reduce the potential of crosstalk or oscillations that could damage the amplifier, never bundle the microphone and line level cables with loudspeaker or power cables. It is recommended that all loudspeaker wiring enter the backbox at the upper right "knock-out", and route through the cable tray. It is recommended that wiring for the microphone and line inputs should enter the backbox at the lower right "knock-out", and route under the bottom edge of the chassis. The microphone and line level inputs require shielded wire for proper operation. Loudspeaker wire should be of a heavy gauge, to prevent cable losses from degrading the system capabilities. Cable runs using 14 gauge wire should not exceed 90 feet (for 8 ohm operation) or 45 feet (for 4 ohm operation). Longer cable lengths require heavier gauge cable (smaller wire number). Constant voltage outputs (70V and 25V) can tolerate lighter gauge cables or longer cable runs (check an appropriate line loss chart for specific application requirements). NOTE: AC power should enter the backbox at the bottom left "knock-out" (a standard AC duplex outlet, with enclosure and cover, is provided). For proper system grounding, the duplex outlet ground, enclosure, backbox, and conduit or raceway must be bonded together and connected to earth ground. For safety and conformance to codes, this bonding of all metal surfaces should be performed by a qualified electrician during installation of the backbox. Back-Box Grounding: 1) 2) 3) 4) The back-box must be electrically bonded to the ground conductor of the incoming power cable. Ground to the box should be bonded to the stud provided in the cable tray inside the back-box. [. . . ] Once Override Input settings are made, Override Sensitivity may be adjusted for proper muting sensitivity. Override Sensitivity should be adjusted so that muting is easily triggered by Override Input (paging) signals, but not by ambient or background noises on the paging line. The Override Input Active indicator will remain lit during muting.
8
CH 8
-12V +12V +10V GND OUT IN -12V +12V +10V GND OUT IN -12V +12V +10V GND OUT IN -12V +12V +10V GND OUT IN
CH 7
CH 6
CH 5
CH 4
-12V +12V +10V GND OUT IN
CH 3
-12V +12V +10V GND OUT IN
CH 2
CH 1
-12V +12V +10V GND OUT IN
-12V +12V +10V GND OUT IN
REMOTE CONTROL
MAX
MIN
Mixer Circuit Board
OVERRIDE SENSITIVITY
MAIN
AUX
9
IN OUT GND +10V +12V -12V IN OUT GND +10V +12V -12V
APPLICATIONS
250 Watt Distributed System plus Hearing Assistance & Recording Outputs
IWA 250
channels 1
aux
2
aux
3
aux
4
aux
5
aux
6
aux
7
aux
8
aux
+15
C
UL
R
power
US
LISTED
52SJ
120V~ 60Hz 900 Watts
main equalizer
+15 max
Main Amp. output
min
max
min
max
min
max
min
max
min
max
min
max
min
max
min
main
main
main
main
main
main
main
main
-15 -15
63
min max min max min max min max min max min max min max min max
125
250
500
1k
2k
4k
8k
16k
high
high
high
high
high
high
high
high
IWA 250 Powered Mixer
-15 +15 -15 +15 -15 +15 -15 +15 -15 +15 -15 +15 -15 +15 -15 +15
HPF OFF ON AUTO MANUAL OVERRIDE
low
low
low
low
low
low
low
low
aux
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
-15
+15
min
max
gain
gain
gain
gain
gain
gain
L / R Sum OFF OFF ON ON 20dB Pad OFF OFF 20dB Pad L / R Sum ON ON
main
aux out
main out
line
mic
line
mic
line
mic
line
mic
line
mic
line
mic
min
max
min
max
min
max
peak
peak
peak
peak
peak
peak
peak
peak
active peak
S LR LR
common main EQ in main out
1
2
3
4 inputs
5
6
7
8
override input
aux out
main out
Phantom Power
tape playback
OFF OFF
Phantom Power
microphones
OFF OFF
Phantom Power
OFF OFF
Main distributed speaker system
COMPACT
1
DIGITAL AUDIO
2:50
CD player mic preamp
paging microphone
tape recorder
hearing assistance system
10
APPLICATIONS
250 Watt Distributed System plus Remote Control & Auxiliary Speaker System
IWA 250
channels 1
aux
2
aux
3
aux
4
aux
5
aux
6
aux
7
aux
8
aux
+15
C
UL
R
power
US
LISTED
52SJ
120V~ 60Hz 900 Watts
main equalizer
+15 max
Main Amp. [. . . ]
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