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One sub, a two channel system ,one HT reciever ??

I have a nice two channel system that uses the Pre Out's of a HT reciever to a line input of my preamp to integrate the HT system with my two channel gear.

Right now, the sub is driven by the LFE of the HT reciever and bypasses the sub's crossover and it works well.

To use the sub with my two channel gear... it would appear that I take the power amp out put to the speaker inputs and then the speaker out's to the speakers and set the sub crossover where I want.

However, the manual says use either the line level input OR the speaker level inputs but not both.

a) what happens if I screw up and fail to unplug them appropriately

b) Is there a clever way to hook up the sub with my two channel system and the HT system?
tcatman

Showing 2 responses by sogood51

sogood51
2,157 posts
 
If your receiver folds the LFE channel into the mains when set to (large mains-no sub)....you can simply add something like the Paradigm X-30 crossover (around $100 used)into the system. (or any other good crossover on the market).

It would connect like this:

Two channel preamp>>Paradigm X-30>>Mains and sub. This sends the fullrange signal from the receiver, to the preamp. The preamp feeds it to the Paradigm crossover. The paradigm crossover filters the mains and subwoofer, or...just the subwoofer if you want to run the mains fullrange. (a second set of preamp outs required or splitter cable for this method).

I don't agree 100% with "Stanwal" on his second choice option being better....but don't really dis-agree 100% either.

Running the mains fullrange, is speaker dependent (the main speakers). The speaker level connection method assumes that the mains have a smooth low freq's response....many small ported designs are anything but. So....this method depends.

I also don't agree with this:

"The critical factor is not having to run your signal through the crossover".

If this were true (critical), we would all be using single driver speaker systems. Sometimes the gains, more than make up for any loss.

Note: My options also depend on a few things.

Dave
sogood51
2,157 posts
 
Running the mains full range as Rel suggests, either works, or doesn't work...it has a lot to do with whats going on with the main speakers. The Kef's may work great...many smaller ported speakers may not, again....it depends.

No amount of gibberish by Rel, or anyone else, can change the facts.

If it works...thats great. If it doesn't work (and it won't always work)....you will need to fix it, or you won't be happy.

Dave
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