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Jeff_Permanian

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Reply with quote  #1 
There are a few options. First would be to get DSP sevice with extra inputs that allows you to hook up the the subwoofer outputs from your receiver and then route the signal to your Noesis 215RTs. With this setup all you have to do is adjust the subwoofer level right in your receiver just like if you had subwoofers. I would think even the MiniDSP 88A would allow this. Next would be to get a small, high quality mixer to integrate your subwoofer outputs with your mains. The easiest would be to just buy a few stereo to mono converters. You'll need one per speaker. For the left speaker, hook up the left output from your receiver to the left input of the convert, sub out to the right input. For the right speaker, hook up the right output from your receiver to the right input of the convert, the other sub out to the left input.


Some ideas:
1) http://www.minidsp.com/products/dirac-series/ddrc-88a


2) http://www.shure.com/americas/products/mixers-dsp/scm262-stereo-microphone-mixer


 3) http://www.mcmelectronics.com/product/50-9042?utm_expid=8634549-27.0czCl7fSQamjILoiAH9mgA.0&utm_referrer=http%3A%2F%2Felectronics.mcmelectronics.com%2Fsearch%3Fcataf%3D%26view%3Dlist%26w%3Dstereo%2Bto%2Bmono%26x%3D0%26y%3D0

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Jeff_Permanian

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Reply with quote  #2 
Using stereo to mono adapters:



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freudie1

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Reply with quote  #3 
Jeff,

Reading this, I have a few questions:

  1. If I have three 215RT (L,C,R of course) are you recommending only running the left and right towers with the LFE mixed in OR are you suggesting to run all three with LFE mixed in (my original plan was the later)?
  2. My amps are pro audio amps and as such have XLR inputs (and my pre-pro has xlr outputs).  I found the following "combiner", however the frequency range stated only goes down to 20hz.  Take a look and let me know if this will "work":  http://www.bhphotovideo.com/c/product/351511-REG/Whirlwind_IMCOML_IMCOML_2_to_1_Line.html


Thanks!
Jeff_Permanian

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Reply with quote  #4 
I would send LFE to all three if you can. That combiner you listed is $100 each and you need one per speaker so it might be able to get DSP device that lets you combine for the similar money and give you more features.
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freudie1

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Reply with quote  #5 
I found that combiner for $70ish with some searching.

The beauty of this solution is it's simply mixing in the LFE signals without having to configure anything (i.e. DSP unit).

The main reason I am looking at this option is due to the fact that I already have DSP capabilities via my pre-pro (Marantz AV8802).  Using the combiners to mix, I can now control the LFE gain via the pre-pro as opposed to if I use the pre-pro AND a separate DSP I have two places to adjust when tuning (not to mention Audyssey is out the window pretty much).

I'm thinking the only reason to go the stand alone DSP route is if you don't already have such capabilities.  Really is a shame that pre-pros just simply don't have a "mix" option already for such scenarios.
Jeff_Permanian

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Reply with quote  #6 
Most pre-pros will add in the LFE to the mains if your select that you don't have subwoofers however you lose the abilitiy to adjust the LFE level.
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DRC3

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Reply with quote  #7 
I have the Marantz 8801 and if I run full range on mains it sounds like I have my subs on, but unable to adjust how much LFE is going to mains.  Sounds great but I've had an amp go into protection mode once (during movie).
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Reply with quote  #8 
I wonder if  'Y-Connector' cables would work ?

 By hooking up the ' Y part' to the 'Main output' and the 'LFE output', and then connecting the 'Single out' to the Amplifier input ?
Jeff_Permanian

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Reply with quote  #9 
It's not a good idea to use a y connector to two outputs and that could cause damage to your processor.
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Jeff_Permanian

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Reply with quote  #10 
I've still been looking for other solutions and came across this:

http://www.sonifex.co.uk/redbox/rbsm2_ld.shtml

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Jeff_Permanian

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Reply with quote  #11 
http://www.rapcohorizon.com/p-21-mc-4.aspx

I haven't tried this unit yet but it does have 4 channels. Could combine left with lfe, right with left and center with lfe.

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