Pre amp out on Pass Labs INT-150


Recently purchased a Pass Labs INT-150 and connected an SVS SB-13 Ultra (with SVS Ultra bookshelves) to the preamp outs (RCA). Setup the low pass filter on the sub, high pass disabled. Started playing some music and noticed bass response was negligible (mids and highs were just fine). I ran some frequency sweep files and it seems frequencies below ~100 hz are not being output for some reason. Reconnected an older integrated amp to and everything seems fine. Is this an equipment matching issue or amp itself? I'm stumped.

Anyone else had this issue? Any feedback or input would be greatly appreciated. Thanks in advance.

Tim
usquazar

Showing 1 response by usquazar

Thank you for all the responses.

I powered off the amplifier last night and let sit for a couple hours. Changed the pre amp cabling to some different interconnects and powered on the unit subwoofer. Then listened to some music and ran the same test files and everything was working as expected. While still stumped, things seem to be in working order again. Strange.

Tim