HK t-60.....

Heyraz, I took your advice finally and mounted the Ortofon OM20 on the T55c. You were right, the Signet was a bad cart/tonearm match. It's playing Alan Parsons Vulture Culture right now, and no issues with acoustic feedback or footfalls - just sweet analogue sounds :)

I have a T55c and it's a great table for the most part, but it's way too susceptible to acoustic feedback and footfalls. It's now sitting in a closet because of this issue. I've heard it's a common problem for the series.

I was using a Signet AM20 cart, and no, I don't own a test record. The table was sitting in the same place all of my tables sit and none of the others were so sensitive.

It originally had an Ortofon OM20 mounted, which is a super low mass cart and perhaps a much better match to the low mass arm of the HK. I'll put the Orto back on it and re-test.

Thanks.

One issue I am having, now that I'm using this TT more often, is speed accuracy and stability. It's running slow with the quartz lock, and the speed adjustment needs to be turned way up in non-quartz mode. According to the service manual, it needs a new motor pulley. I assume this is because the pulley has become smaller over time?

Also, the speed seems a bit wavery. My other deck is a Technics 1600MK2 so I'm used to rock-solid speed control. Any suggestions here?

Mark