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Subwoofers 80hz and Down under!

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  #1  
Old 01-02-2015, 11:09 AM
nhparrot nhparrot is offline
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Default subwoofer hookup

What is needed to connect a pre-amp without subwoofer or LFE outputs (does have a 2nd set of L/R RCA line outs) to a subwoofer with a single RCA input?

Thanks
Glenn
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Old 01-02-2015, 11:28 AM
Kal Rubinson Kal Rubinson is offline
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The simple way is with a Y-connector from the 2nd set of L/R outputs to the sub........BUT: That assumes a number of things.
1. The sub has its own LP filter and level control.
2. The 2nd set of L/R outputs are buffered from the main L/R outputs so that the Y-connector does not short them together.
3. You do not require a HP filter for the main speakers.

All that said, it might help if you told us the names/numbers of the specific devices in your setup.
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Old 01-02-2015, 02:47 PM
nhparrot nhparrot is offline
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Thanks, the pre-amp is an Audible Illusions L1 and the sub I was considering was a Hsu STF1. The AI L1 has a 2nd set of pre-amp outs, is phase inverting and the 2nd set of pre-amp outs has a 470 ohm resistor in series with the output. The sub does have its own crossover and level controls. The folks at Hsu recommended a RCA summing cable.

Last edited by nhparrot; 01-02-2015 at 02:51 PM.
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Old 01-02-2015, 03:23 PM
Kal Rubinson Kal Rubinson is offline
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OK. The resistor will provide adequate signal isolation if you combine the 2nd L/Rs with the Y-connector. This will do.

OTOH, you will not have any HP filter for the main speakers nor any EQ for the sub. These can be added when/if you see the need.
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Old 01-02-2015, 08:15 PM
nhparrot nhparrot is offline
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Would something like this https://www.edcorusa.com/s2m work in my situation?
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  #6  
Old 01-03-2015, 12:21 AM
Kal Rubinson Kal Rubinson is offline
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Quote:
Originally Posted by nhparrot View Post
Would something like this https://www.edcorusa.com/s2m work in my situation?
Sure but so would this:
6inch RCA Female to 2-RCA Male Digital Coaxial Splitter Adapter - Monoprice.com at $2.75 or a similar one from an audiophile-approved supplier..
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