Welcome! This website uses cookies.

Nice that you visit our site. Please indicate here which cookies we may place. The necessary cookies do not collect personal data. The other cookies help us to improve the site and your visitor experience. They also help us to inform you about our products. Are you going for an optimally working website including all the benefits? Then tick all the boxes!
Shopping cart

Your basket is empty


Pre 230 module

With our Pre 230 module we answer to those wanting a high quality Preamplifier, yet with minimum size:

This Pre-230 module fits in a tiny MODU Galaxy 230x40x170mm already. Of course a larger one would fit as well.

As said, it's modular, so several things can be added/changed by us or you:

  • In the basic version it is running as a so called "passive preamplifier", where just
       the volume is controlled by a logarithmic potentiometer. ALPS carbon fits.
  • Volume can be controlled by a Voltage Controlled Amplifier (VCA) module.
  • While using a VCA, gain can be set by a 0-5Vdc and/or an SPI signal
  • Buyer can choose for a basic or toroidal PCB transformer, both potted
  • Buyer can decide to have it with or without an MM/MC prepreamplifier part
  • MM/MC with single input setting OR 16 gain/16 impedance setting by rotaries
  • 3 Inputs, where IN 2 can act as MM/MC or line input, selection by jumpers
  • Input selection and output mute by silver plated relay contacts, 5V controlled
  • In/outputs can be hooked-up by any chassis RCA or basic PCB types
  • In/outputs can be buffered by adding buffer circuits per in/output
  • Those buffers can be in RCA or balanced XLR
  • Customer can make his own buffer circuit for about any signal
  • OUT 1 is for internal (integrated) use, OUT 2 goes outside
  • OUT 2 can be muted, meant for feeding amplifiers in f.e. other rooms or bi-amping
  • Selector relays can be activated by a switch or any other device delivering 5V signals
  • For increased sound quality a Voltage regulator module can be added
  • Frontpanel PCB's connected by a header connector are in development:
While using this one, there is NO wiring at all.

Dimensions of all our modules are in a way, that you also can make Integrated amplifiers with them:
With this setup, you could even make it as low as 40mm while using the CS-40ps LP versions.
In order to fit a single, modest transformer, the depth of the Slimline cabinet needs to be 350mm deep. Any height will do.

In order to fit a single, serious transformer, the depth of the Dissipante cabinet needs to be 400mm deep. Any height will do.