Microphone cable

When the director at Van den Hul ( came to my studio the end of 2010, he let me hear a simple interlink cable between a pre amp and the speaker amplifiers. I already had the best cable from his firm and was very happy with the sound. After switching back and forth a number of times the difference was startling (I was not amused!). This would mean I would have to re- cable everything that I had built up in the last number of year. The depth of sound, the air around the music was startling. 

This cable wheel is the first step in going from the microphones directly to the op amps.



The microphones have been modified by Rens Heijnis so that the power can be supplied by the stage box close to the microphones.


Stage power supply

Supplying the microphones directly with their power from the stage and designing a new printed- circuit board is a plus for the stability of the power and to keep the signal clean. Built by Rens Heijnis. The sonic improvements are:

• clearer placement of musical instruments within the stereo sound field
• exceptionally fast reaction time to intermittent high impulse sound waves
• extreme clarity and definition of complex low frequency sounds
• measurably less distortion across the entire sound spectrum


Pre amplifier

One of the biggest problems with recording on location is not having a clean and stable electricity. Not only has the dutch audio guru Rens Heijnis designed a new state of the art pre-amplifier but housed them in a box with very large rechargeable batteries ( Problem solved. Result:

• a much more relaxed projection of the sound images
• less noise artifacts
• a complete ‘black’ around the phantom images in the stereo and surround images.


Multi channel pre amplifier

Custom build high quality multichannel monitor amplifier is used for listening on location in multichannel. Built by Rens Heijnis.


Mixing board

I have been using this mxing board built by Rens Heijnis for the last 20 years (with regular upgrades!). All hand built, simple, no extra electronics to dirty the signal. It is even possible to bypass the faders to keep the signal path as short as possible.


Grimm analogue to digital DSD converter

It is no secret that this converter ( has raised the ‘musical’ level of the recordings for the last two years. Naming all the technical details and improvements in respect to other converters is secondary to just listening and comparing the results.