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Woofers getting workout, but no bass

I'm puzzled: I'm noticing just about every LP I've played in the past couple days has my 10" woofers moving like mad, but not in time with the music and regardless of whether there's any audible bass.

I can only conclude that I have subsonic frequencies occuring (my phono stage doesn't have a filter). What would cause this?

Relevant components:
Speakers: Wilson Sophia 2's
Turtable: TW Acustic Raven One
Phono stage: Tron Seven

Thanks in advance.
madfloyd

Showing 3 responses by dan_ed

dan_ed
2,451 posts
 
So, this wasn't an issue until the woofers were "seen" doing the dance. I don't think there was much mentioned about "hearing" any issues. Certainly finite detail at low freq. might be improved by defeating the woofer dance, but it usually comes at the cost (price and performance) of additional components in the case of using sub-sonic filtering.

The issue that most miss can arise IF there is not enough headroom in the amp to prevent clipping when those cones are moving an inch in both directions.
dan_ed
2,451 posts
 
Are you saying a ceedee playing down to,say, 25Hz will also cause excessive excursion? I think that ported speakers may be more susceptible, but that doesn't tell the hole story, IMO.
dan_ed
2,451 posts
 
Pain? Perhaps at times. However, how does it sound to you? Warts and all, it still sounds better to me than any other format.
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