LightSpeed Technologies 880iR Dépliant

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Step 3: Connecting and Routing Speaker Wire
A.   Locate the four coils of wire (two 50 feet, two 75 feet) 
 
and place them next to the speakers. Each speaker 
 
requires one length of wire.
B.  At the first speaker, connect one end of the wire to the 
 
terminals on the back of the speaker. Connect the red 
 
wire to the red terminal by depressing the tab and 
 
inserting the wire into the connector hole. Then  
 
connect the black wire to the black terminal in the 
 
same manner.
C.  Attach the speaker to the mounting bracket. Place the 
 
speaker between the mounting bracket arms and  
 
secure on each side with the plastic angle adjustment 
 
knobs. Angle the speakers down to “aim” the sound 
 
halfway across the room. Tighten knobs snugly, but do 
 
not over tighten and strip the screw threads.
D.   Run wire by best route back to the receiver/amplifier.  
 
For permanent installations, it is usually best to route 
 
wire overhead when possible using wire raceway to 
 
conceal. Running speaker wire above suspended ceiling 
 
tiles is common practice, but must be done is accor- 
 
dance with building and electrical codes. If the room 
 
has high ceilings it might be best to route the wire 
 
around the room floor staying close to the walls. Do  
 
not connect the wires to the receiver/amplifier yet.
Step 4: Connecting Speaker Wire to  
Receiver/Amplifier 850iR (see figure 4)
A.  Connect the wire coming from each speaker into the  
 
SPEAKER OUTPUT binding post connectors.
 
  i. Unscrew the red and black caps on the binding  
 
     post connectors for all four speakers.
 
   ii. Insert the bare red wire into the hole that was 
 
     revealed by unscrewing the red cap. Insert the  
 
     bare black wire into the hole on the black binding 
 
     post. Repeat with all four speaker wires.
 
  iii. Screw the caps back down onto the wire until they 
 
     are secure.
 
  iv. Make sure the speaker on/off switch next to the 
 
     jack is switched to the “ON” position.
880iR (see figure 5)
 
  i. Unplug the euro-block style connector from the 
 
     SPEAKER 1 jack.
 
   ii. Insert the black wire (-) into the left side of the  
 
     connector and lock it down by tightening the screw 
 
     on top of the connector.
 
  iii. Insert the red wire (+) into the right side of the  
 
     connector and lock it down in the same manner.
 
  iv. Plug the connector back into the SPEAKER 1 jack  
 
     and lock it into the amplifier by tightening the two 
 
     side screws.
 
   v. The corresponding speaker volume knob should be 
 
     left in the 12:00 position.
Step 5: Equalization
A.  Each receiver/amplifier includes an 8-band equalizer 
 
that allows users to fine-tune their classroom based on 
 
different room characteristics. Figure 6 shows the  
 
factory recommended settings for the WMQ speaker.  
 
Since all rooms are different, this is only meant as a 
 
starting point and may require some adjustment.
B.  The ideal sound is a crisp, clear sound with no feed- 
 
back. Volume levels should be set to a point you can 
 
barely hear your own voice. The goal is to try to repli- 
 
cate the sound of your voice as if the child is sitting 
 
directly in front of you, not to amplify your voice at  
 
high volumes. Because of the classroom size and  
 
constant proximity to the speaker, the system can 
 
product feedback (squealing) if the volume level is  
 
set too high.
C.  Return to the “Initial Set-up” section of the user  
 
manual to complete the remaining steps of the  
 
system installation.
EQUALIZER
250
400
600
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1K6
2K5
6K3
4K
+10
0
-10
LightSPEED
Start your system installation with the 
“System Installation” section of the User Manual
All LightSPEED speakers should be in 
accordance with Uniform Building Code, state 
and local building department requirements
DRQ™ Ceiling Speaker Installation Instructions
for the 850/880iR Receiver/Amplifier
SPEAKER 
OUTPUTS
250 400
700
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1K4
2K5
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6K
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0
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AUX
VOL
ADJ
COMPUTER
AUDIO INPUTS
TV/VCR CD/DVD
800iX
INPUT
PAGING INPUT
DC POWER
CHARGERS
24VDC
L
R
SENSOR INPUTS
SENSOR 
SHORT
1
2
3
4
AUX 
ALD
VOL
ADJ
ALD
OUT
AUX
OUT
CH A
PRIORITY
R
L
ADJ 
SPEAKER 
VOLUME
5
6
CH. B/Audio IN
Audio
IN
OFF
1
2
Connecting Speaker Wire to Back of Receiver/Amplifier
EQ Setting
Figure 6:
Figure 5:
RED
Figure 4:
880iR
820/850iR
BLACK