Originally Posted by nhsice
Sorry I misspelling the lfe with lef.
I have two subs which one is from martin logan and the other is from klipsch.
The klipsch has a lfe-in from the left.
The martin logan has a lfe-in from the right.
I just connected the 2 subs according to their lef-in channel and all I hear was noise coming out of the subwoofers.
I turned off the receiver and unplug one rca cable from the y-splitter but theirs no bass. However, if I unplug the y-splitter, there is bass.
Can it be a bad adapter? I just purchased that adapter today too.
Once again, thanks for the help.
Your description is a bit confusing. With both subs powered on, and the "Y" ends connected to the LFE inputs as Chris notes, pull the cable from the AVR sub preout and rub your finger over it. Do you hear static coming from both subs? If yes, then there's no issue with either the subs or the cable. If not the issue lies with one or the other.
Additionally, on the Martin Logan, make the following settings:
Phase: 0 degrees
Low Pass Filter: 200hz (max)
Level: 12 o'clock
with similar settings on the Klipsch.