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Tonelux SM1 Module – No Longer Available

Single bus Master Summing Amp, configurable to any bus, No Insert
MFR# SM1

Product Description

The Tonelux SM1 is a DISCRETE Mono Summing module, with a selectable input (on the PC board with jumpers) so you can grab any bus and use the SM1 as the summing master for the bus, such as Sends, Center Channel, LFE, PFL, etc.

The 8 seg LED VU meter follows the output of the final stage. The Summing input uses the Tonelux DISCRETE op-amp for summing, then feeds the Tonelux DISCRETE output op-amp into a transformer for the summing (or ACA) output. The return from the ACA out comes back into a DISCRETE booster amp, the master fader and transformer for the final output stage.

This configuration allows you to insert a 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 output. 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.

The SM1 is also available with only a Summing/Booster/Fader output when the INS function is not required, as when it is used for a send master.

Both the ACA output and the BOOSTER output 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.