Rens Heijnis                                      custom-built audio equipment

A few examples of  monitor units

Different surround monitor amplifiers, only drawing available 

• Monitor type 1
• Monitor type 2
• Monitor type 3
• Monitor with talk back 1
• Monitor with talk back 2

Passive stereo monitor amplifier  Stereo passive

Stereo monitor amplifier with 3 inputs and 3 outputs (price: 900 euro).
 
 

   

Stereo monitor amplifier with 4 inputs, 5 outputs, headphone, and a special mid/side switch (price: 1500euro)
 

   

Stereo Monitor amplifier built with tubes, 2 inputs and remote controlled input and volume.

 

  

Stereo monitor unit with talk back, light, tuning fork and gain control of a 6 channels remote controlled pre-amplifier