IME the most frequent cause of 'woofer pumping' is an arm/cartridge mass mismatch. This problem should be cured by proper matching and set up, not a rumble filter.
A rumble filter would help with sub-sonics that are present on the recordings. I've heard these on some British recordings where the studio was near an underground/subway. But I'm not so sure they are all that common. If you have a tape loop on your pre-amp you could stick one there and only use it when needed.
A rumble filter would help with sub-sonics that are present on the recordings. I've heard these on some British recordings where the studio was near an underground/subway. But I'm not so sure they are all that common. If you have a tape loop on your pre-amp you could stick one there and only use it when needed.