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Tonelux SM2 Module – No Longer Available

Stereo Discrete Summing module
MFR# SM2

Product Description

The Tonelux SM2 is a STEREO DISCRETE Summing module, with selectable inputs (on the PC board with jumpers) so you can grab any pair of bus and use the SM2 as the summing master for the Stereo bus, Surround Bus or the Solo Bus, etc.

The two 8 seg LED VU meters follows the outputs of the both final stages. The Summing inputs use the Tonelux DISCRETE op-amp for summing, then feeds the Tonelux DISCRETE output op-amp into a transformer for the summing (or ACA) outputs. The return from the ACA out comes back into a DISCRETE booster amp, the master fader and transformer for the final output stages.

This configuration allows you to insert a Stereo compressor after the summing amp and before the master fader (either the front panel pot or the external fader option), then returning it back into the fader and to the final Booster outputs. This modules works the same way any typical professional recording console would work.

The INS (insert) button allows the engineer to compare or insert the device such as a compressor for IN/OUT comparison or when required for a special CUE point. One switch controls both channels.

The rear panel connector allows the user to insert a Stereo fader, which will serve as the Master fader.

Both the ACA outputs and the BOOSTER outputs are transformer coupled.

Product Specifications

Condition New

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I would like to thank VK for the wonderful sales assistance, service and prices. This was my first purchase with you and it won't be my last. I only wish I'd discovered you years ago!
Matthew R.
I had two Grammy wins this year - Ray LaMontagne & Carolina Chocolate Drops. Both made with help from Vintage King!
Ryan F.
In almost 20 years in Pro audio buying, never did I receive a unit so well packed and exactly as described. Works flawlessly. The whole process has been so smooth. I will never hesitate to do business with you guys in the future and will recommend you to everyone I know.
Martin C.
This was my first experience buying something from Vintage King (although I surf the "used" categories on the website frequently!), and, despite being on the other side of the world, I had absolutely no trouble and everything went very smoothly.
Phil T.