Why the woofer moves badly when playing certain LPs


Hello. First greeting.
My turntable is Pro-Ject The classic, Phono is Lejonklou Gaio2.4 and Cartridge is AT150sa.

However, I am having problems with my woofer moving badly when playing certain LPs.
Generally, this is not the case with the older, dusty LPs of the 80's, but rather with the record just new released LPs.

I want to get help from someone who knows why this is happening.
Sorry for my broken English.
Thank you very much.

starbusters

Showing 2 responses by heaudio123

Have you looked at the records to ensure they don't have any warping, or that they are sitting flat?
At 0.49 I can see a large gap under the record at the edge. Approximately 1-1.5" of the outside of the record is not touching the platter. The record is warped. That is likely instigating your woofer excursion. If you have a resonance issue in addition as described by atmasphere, above, that will make it worse.