2. amps-preamps
  3. 193043-200743

Need a little help

Hello everyone. Somewhat new to this hobby and need a little advice. My current setup is a 2.1 channel setup consisting of a Pioneer sclx-904 av receiver that I'm using as a preamp, 2 identical Anthem power amps that are feeding a pair of B&W bookshelf speakers (they are biamped). My question is this; I recently acquired an Nad preamp. Can this NAD be integrated into my existing system somehow?  What would I be gaining? I read that an external preamp can be hooked up to an av receiver, how would I do that?? Also the NAD only has one set of preout's, and does not have a dedicated sub out, I still want to use both Anthem amps and my Klipsch subwoofer, but how do I achieve this with only one set of preouts( left/ right) on the NAD?? Any help is much appreciated. Thank you!

spoonman16510
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jeffbij
45 posts
 

From what I think you are saying, the answer is no.  You can't feed on channel (L or R) to the amps (and then onto the speakers) and the other channel to just the sub.

You have to keep the channels isolated from eachother, left channel going to the left speaker and the right channel going to the right speaker.  

This also brings up another question.  You already said the sub doesn't have speaker wire connections (L and R) on it.  Does it have a separate L and R  RCA inputs?  If it doesn't, then there is another problem.  You can't merge the L/R channel signals back together without isolating them.  Otherwise, you are creating a short circuit and loose the "stereo".   Typically this is done inside the preamp/processor or inside the sub.  

I know that this is getting complicated and confusing for you.  Try drawing this out on a sheet of paper, it might help.  And trying to explain this in text can add to the confusion.  If you would like to talk about it, private message me and maybe we can arrange something.  Maybe some kind of white board session

 

- Jeff

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jeffbij
45 posts
 

Since my last post, I've been thinking on what you are trying to do. 

What is the make/model sub you have? 

Since the NAD is an integrated amp, you do have one additional set of outputs on it, the high level speaker outs.  You might be able to do something with that and a sub woofer.

spoonman16510 OP
13 posts
 

Jeffbij, the Sub is a Klipsch R-100W 10" High level speaker outputs on the NAD? 

spoonman16510 OP
13 posts
 

https://community.classicspeakerpages.net/topic/8597-bi-amping-the-ar9-how-do-you-do-it/ This was how I had the b&w bookshelves hooked up, again using the Pioneer elite as a preamp. Hopefully that link opens. This is vertical passive biamped correct? 

. 

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jeffbij
45 posts
 

Sorry to confuse you more.  The "high level" speaker outputs on the NAD are the speaker connections, i.e. where you connect the speakers to.

Unfortunately the sub doesn't except high level inputs.  Good thing is that it does have L and R connections, so the input signals are isolated before being combined.  Thus the 3 way splitter will work.

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