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Author Topic: Dropping 100v speaker signal down to line input  (Read 454 times)

David Sturzenbecher

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Re: Dropping 100v speaker signal down to line input
« Reply #10 on: June 03, 2018, 11:54:38 am »

this was made for doing exactly what you want...
http://www.rdlnet.com/product.php?page=162
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Kevin Graf

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Re: Dropping 100v speaker signal down to line input
« Reply #11 on: June 04, 2018, 08:52:22 am »

Another solution might be:
A small speaker transformer and an old Radio Shack auto radio Line-out Converter #12-1238.
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Hal Bissinger/COMSYSTEC

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Re: Dropping 100v speaker signal down to line input
« Reply #12 on: June 04, 2018, 06:03:43 pm »

I second the RDL TX70A. In lieu of that a 100v line transformer with a 1/8W tap.

Quote
Do you mean like a 100v rotary attenuators? Like this one?

Doesn't anybody know how to wire a simple pot like 100K off the transformer secondary for a level control?

-Hal
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Nathan Riddle

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Re: Dropping 100v speaker signal down to line input
« Reply #13 on: June 05, 2018, 12:14:40 pm »

The cheapest way: http://www.epanorama.net/circuits/speaker_to_line.html/ (what JR was saying to do).

There's this: https://www.rapcohorizon.com/product/233/db-1sl-direct-box
Unknown what the voltage is. (400w @ 8ohm is 56v)

Or this:
http://whirlwindusa.com/catalog/black-boxes-effects-and-dis/direct-boxes/director
100v -30dB = 3.16V = 12.2 dBu (+22dBu line level max, most mixers)
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