Inner 1/3 of All Records Deep Obtrusive Rumble


Using a New Technics 1200G/Hana ML. Everything perfect until the inner 1/3 of every record. Subs are present but blend well with the main speakers. The rumble shakes my sofa, so base sound reinforcement/standing waves kick in. Have some large base traps(4), but bass traps aren’t the answer. I think it is the turntable direct drive mechanism, but I’ve not seen this complaint about this Technics. Any suggestions?  I would prefer to dump the turntable vs notch filter..but maybe my thinking is off base...and then I would need to know what turntable should I be looking for?

vonhelmholtz

Showing 2 responses by wturkey

Definitely check the cartridge alignment and overhang as previously mentioned. The KAB headshell holders have a built in overhang gauge. Sure it’s by eyeball but it works quite well. If memory serves the overhang should be 15mm. Also make sure the headshell wiring is correct on both ends. Mistakes happen….