my sub amp(before i smoked it) only had l&r inputs,no lfe and there was much more gain running a splitter and connecting both.

are there really subs with 2 LFE inputs?if so,why?

Well you guy's are most likely right however there is a potentional 6dB gain in amplitude when feeding the two LFE inputs on the Sub with a Splitter and I suspect my friend thinks that by splitting out of the single LFE on the receiver he's created a parallel circuit and thus affected overall resitance and thus signal strength and is viewing the two splitters at the Subs as a way to compensate. There is no doubt that thinking about this gets the Ol' Eyebrows Twitching but it does make for interesting discussion.

Yes, my sub for example has two LFE Low Pass inputs, you'd use the "Left" for a single LFE however the two may be there for runing inbetween a Pre-Pro but I'm not sure. There have been recommendations to use a splitter at these two Inputs for Subs that have an Auto-On circuit that's not sensitive to operate with the single LFE input. Using a splitter sends the same Signal to the two inputs and has the same affect of a 6dB channel level gain in signal.

at least this is my story... and I'm sticking to it

snarl,the thought of 2 lfe inputs still raised my eyebrows.i searched on your sub,and the little info i came up with leads me to believe that your sub has l&r inputs(and high passed outs) not 2 lfe inputs.

I beleive you are correct, at least to a degree. My sub has 2 Low Level Inputs, both can serve as a Single LFE Input (tested) however the LH is the indicated primary. And according to the manual you can also use a Y Cable to send input to each for the 6dB Signal Gain. Then below that it also has 2 High Pass Outputs

ok.