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Installation and Operating 
Instructions MA201 Stereo 
Integrated Amplifier  

Congratulations and thank you for choosing Knöll 
products.  

The MA201 is a stereo integrated amplifier rated 
at 15 watts per channel. It is controlled by the 
VC201 or VC201i keypad. These keypads are 
available in white, almond and ivory colors. The 
MA201 controls the volume, mute, bass and treble. 
A VC201 keypad is located in some convenient 
location in the room and it controls the volume and 
mute. The MA201 is usually located near the stereo 
source equipment but does not have to be. 

Installation

 

The MA201 is normally wall or SMC mounted. It 
does not have to be near the stereo equipment but 
long line level audio runs are not recommended.   
 
The MA201 needs to be controlled by a VC201 or 
VC201i keypad. If VC201 keypads are being used, 
one or two can be installed in each room. These 
keypads are available in white, almond and ivory 
colors. Cat 5 wires need to be home run from the 
keypad locations to the MA201.  
 
First with a good quality RJ45 crimper, crimp the 
cat 5 wires from the keypad to the MA201 on both 
ends with a RJ45 plug. There is no specific order 
the wires have to go, so long as they are in the 
same order on both ends of the plug.  Install the 
VC201 keypad, connecting the RJ45 plug to the 
jack. If two VC201 keypads are being used to 
control one room, the wire from one of the VC201 
keypads can be run to the other VC201, with only 
one home run back to the MA201 controller. 
 
Next insert the wire from the VC201 keypad to the 
MA201 jack labeled KEYPAD. 
 

Connect the stereo source to the MA201 gold RCA 
jacks labeled INPUT. 
 
If the 12-volt output trigger is to be used connect 
it now to the detachable terminal labeled TRIGGER. 
The maximum output is 50 mA.  
 
If this room does not require start mute, remove 
the shunt from the appropriate pins next to gold 
RCA jacks on the MA201. Start mute means that 
the output is muted after the MA201 is powered up 
until the volume control is activated. 
 
If VC201i keypads are used, connect any required 
emitters to the pins on the detachable connector 
labeled “IR OUT” and “G” 
 
If the MR202 source selector is being installed do 
it now. Make a short RJ45 to RG45 jumper using 
cat 5 wire to connect the “SELECTION” jack on 
the MR202 to the “MR202” jack on the MA201. 
Connect up to 4 stereo inputs to the MR202 gold 
RCA jack labeled 1, 2, 3 and 4.  
 
With good quality short as possible RCA cable, 

connect the MR202 B outputs to the MA201

 gold 

RCA jacks labeled “INPUTS”. Connect the supplied 
15VAC power supply to the MR202.  
 
Connect the PS1318 power supply to the MA201 
jack labeled “13VDC”.  
 
Plug the power supply or supplies into the wall. 
After the system powers up and the source is on 
and running use the VC201 up button to turn on the 
MA201. Adjust the balance, bass and treble on the 
MA201 as needed. Use the keypad to adjust the 
volume up and down.  If the power supply is 
installed to a switched outlet on a receiver, the 
infrared cannot be used to turn the system on. 
  
 
 
 
 
 
 
 

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