That resonance is on the low side close to record warp frequency! Nine times out of ten this will cause woofer pumping. You should get a good test record so you can see this for yourself.
I use Shure ERA 1V TTR115 test record, it is invaluable for this test.
You can find them on Ebay for about $20.00. It would be a wise purchase for someone like you who is into vinyl.
I use Shure ERA 1V TTR115 test record, it is invaluable for this test.
You can find them on Ebay for about $20.00. It would be a wise purchase for someone like you who is into vinyl.