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Amp's Line-Out to Subwoofer?

Hey Audiogon forum!

An audiophile acquaintance of mine has been trying to convince me to get a subwoofer for my system recently, and I am curious about the possible benefits. I have a pair of Elac B6's fed by a Music Hall A15.2 (which has no LFE out) and he said I'd be able to use the Music Hall's Line Out output to connect a sub. I have a lot of questions about that. Mainly (and obviously) will that work? Second, if it DOES work, will the full signal be sent to the speakers and would that create any weird complications in sound quality? I've never heard of doing it this way before so I have no clue; I just know that I love my current amp and don't want to get a new one just to get an LFE output.

Thank you!!

Also, here's the Music Hall manual which details the Line Out option in more detail:
http://musichallaudio.com/pdfs/music-hall-a15.2-integrated-amplifier-manual.pdf
kremrik

Showing 2 responses by mofimadness

mofimadness's avatar
mofimadness
4,940 posts
 
tls49 is correct, if this is a fixed line out.  However, I really doubt that it is.  It wouldn't make any sense to make it a fixed output?

I would indeed get a hold of Music Hall to make sure.
mofimadness's avatar
mofimadness
4,940 posts
 
Yes that would work.  Whatever sub you get will most likely have all of the crossover and level controls that you would need to match your speakers.

All the line out is doing is sending a full range signal, (controlled by the volume control) to the the device hooked up to it.  Be it an amp or sub or etc.

You really do NOT want a LFE output for a 2 channel system,  because that would require the source to be encoded then decoded by a processor to function properly.  LFE is usually associated with the audio signals from a video system.  Low Frequency Effects are part of that signal chain.
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