Let me start by saying I've incorporated a SVS Pro2000 sealed box sub into my system. My Raven integrated has a sub out which allows an 80 db filter to keep my Klipsch Lascalas from trying to do what they do poorly anyway. Plus my amp no longer needs to send signal to mains saving the amp the strain of those lower frequencies. The SVS sub has a low pass filter which on the phone amp is extremely convenient to use from my sweet spot allowing setting switching from my chair as music plays. I've attempted to adhere to the detailed instructions which are hard to misunderstand. But after considerable experimentation, there is no doubt that the "low pass filter" HINDERS the sound quality profoundly! With this feature OFF, the music reproduction has filled in a perceived hole in the sound stage. I've switched it OFF and back ON dozens of times and despite various CD's of all kinds the effect is always more natural and full without the "low passs filter." The one glaring downside is that at higher volumes the bass seems too boomy but a simple adjustment to lower the bass volume cures the problem. Maybe someone can benefit from this too!
I can’t hear the Difference in the change the low pass filter or the volume on my SVS subs
sorry for the typo in my headline. I don’t know how to fix it.
I have to make major adjustments to notice the difference. Is that because of me or is that the nature of the beast? I suppose It could be my room as well. It’s not a problem so much as a curiosity.