Knoll Systems MA850 사용자 설명서

Output

Output Output

Output

1L 1R

1

2

2L 2R

Gain

3L 3R

Gain

4L 4R

Gain

Gain

3

L

4

R

Input

L

R

Input

12 VDC

Trigger

120 VAC

 4 Amps

Link (out position)

cascades channel 1

to chanels 2-4

10. Connect the AC power into an outlet than can supply at 
least four amps (550 watts) dedicated to each MA850. 

 
Caution: Never listen to sound that is distorted. If distorted 

sound is heard, turn the volume down immediately or speaker 
and/or amplifier damage could occur that is not covered by the 

warranty. If this problem persists, contact your dealer. 
 

User adjustments and service: There are no user 
adjustments on the MA850. Your installer may make certain gain 
level adjustments on the rear panel.  

 
Caution: The MA850 contains no user serviceable parts, so do 

not attempt to open or repair the MA850. Refer servicing to a 
qualified technician only or contact the factory for information. 

 

 
 
 

 
 
 
 
 

 
 
 
 
 

 

MA850 to impedances  

damage not covered  

by the warranty may occur. 

 

 
 
 
 
 

 

 
 
 

The trigger is 12 VDC (35mA per MA850) via 3.5mm mono 
jack. 5 VDC trigger outputs will not work. To connect the 
trigger to a receiver use a 12 VDC power supply (we 
suggest Knoll PS1202 power supply with an adaptor). Plug 
the power supply into the switched outlet on the rear of 

the receiver. Connect the 12 volt wire to a 3.5mm mono 
jack. Plug the jack into the rear  of the MA850. 12 VDC 
polarity is not important. Make sure the  
amplifier power switch is off (out). When the receiver is 
switched on, the MR1250 amplifier is switched on. 
 

The Link button is normally set to the in  
position to give all six stereo inputs individual  
sources. When the Link button is set to the  

out position, that input Left/Right is linked or  
cascaded to input #1 (without the use of Y cords). Any or 
all combination of linked inputs 2 to inputs 6 are possible. 
When all inputs are linked to input 1 the input impedance 
is about 4000 ohms.