I had this problem when my table was just _slightly_ off level due to a platform settling. Leveled it again; problem gone. Hope yours is that simple!
Speakers "pumping" with record warps - normal?
I just set up my Technics SL-3200 with an AT440MLa cartridge, Sumiko headshell, and Herbies mat. The table is properly isolated on a Target shelf that is mounted to wall studs. Using the Hi-Fi News test record, I determined that the resonant fequencies of the tone arm are approximate 8Hz (vertical) and 7Hz (lateral).
I've noticed that on warped records, the speaker cones do a lot of low-frequency pumping (visible movement in and out). I'm afraid that I could damage the drivers if I turn up the volume. Is this a normal consequence of warped records, or do I have a resonance problem with my TT?
Thanks,
Mika
I've noticed that on warped records, the speaker cones do a lot of low-frequency pumping (visible movement in and out). I'm afraid that I could damage the drivers if I turn up the volume. Is this a normal consequence of warped records, or do I have a resonance problem with my TT?
Thanks,
Mika