Rens Heijnis custom-built audio equipment
A few examples of monitor units
Different surround monitor amplifiers, only drawing available
Passive stereo monitor amplifier Stereo passive
Surround monitor amplifier.
Stereo monitor amplifier with 2 inputs, 1 output, and switches to control volume.
Surround monitor amplifier with 2 stereo inputs, 1 surround input and surround output.
Stereo monitor amplifier with 2 inputs, 3 outputs, 2 headphones and talkback
Stereo monitor amplifier with 3 inputs and 3 outputs.
Stereo monitor amplifier with 4 inputs, 5 outputs, headphone, and a special mid/side switch.
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