patching sub output to L/R
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gene stangel
Posts: 35
I have resisted purchasing a subwoofer because my main speakers are the large RTA15-tl towers which really have a nice tight low end and I have an A150 Acurus high current amp. Through discussions with a wise salesman I realized that I could split the sub output and patch it into the L/R which I have done between the preamp and amp. I have heard lots of new low information especially from DVD-Audio sources. Just wondering if anyone out there has done this also and if there is any downside to it. Thanks.
Post edited by gene stangel on
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Hi:
A sub is purchased because they go lower than a normal woofer in the average speaker. Most passive speakers will not go down into the 20 to 30Hz that a sub will, even if you do patch the sub output to your L and R channel. Also you might damage your RTAs if you really push them at below their low end.
You will need a sub if you want to hear the lfe that is intended for you to hear on DVDs.
Gary -
Agreed.Dan
My personal quest is to save to world of bad audio, one thread at a time. -
If he has the LFE going to the main l/r, IMO there wouldn't be any advantage to this setup? The signal should already be there from the processor to the l/r front?
Oh, the bottle has been to me, my closes friend, my worse enemy! -
HI:
I really don't see any point either, but it may depend on how his receiver is set up. Anyway, get a sub.
GAry -
I tried several different setups for my sub. LFE single input, line level from speaker inputs and then out to the mains, running a single cable from each of the L and R pre-outs of my reciever to the L and R input of the sub. I finally ended up with a "Y" adapter from my LFE and sending it to the subs L and R input. I got the idea from Adire Audio. I was considering the Rava subwoofer and had downloaded the manual. I ended up with a Dayton Titanic sealed sub (very similar to the Rava). Here is the excerpt from the manual:
"NOTE: If your LFE output is a single channel then you only need one cable from the LFE output to the Rava. You can use either low level input: left is used by convention. Additionally, if you need additional gain on the LFE channel, a simple "Y" jack to run the LFE input to both the left and right channels will give you a "free" 6dB of gain.
Rava Owner's Guide"
This setup worked very well for me."Just because youre offended doesnt mean youre right." - Ricky Gervais
"For those who believe, no proof is necessary. For those who don't believe, no proof is possible." - Stuart Chase
"Consistency requires you to be as ignorant today as you were a year ago." - Bernard Berenson -
Good post shack - I have always used and supported the y adapter method. It just makes sence. I have not found a better way to hook up lfe to a sub yet.simple "Y" jack to run the LFE input to both the left and right channels will give you a "free" 6dB of gain.
:cool: -
Hi:
Most subs I have seen have a dual voice coil that takes a Y adapter. Check out your sub cables and I believe you will find a Y adapter included with it. I know Monster's does, I have one. I have said it before, there is no R and L to a single sub. Just a dual voice coil.
The LFE out of your receiver is just that. It is to connect your sub. I believe you will get the best results that way.
GAry -
Run RCA's to both of your sub's input's, even if your sub doesn't have a dual voice coil; it's only like six bucks down at the radio shack ... and you should also wear a dress when you do this.
