Start Up Rattle on Rega P3

The rattling on start up is normal,if you start the platter with your thumb as you turn on the power there should be no rattle.It also saves wear and tear on the belt and motor.

The other respondants are correct in that the "thunk" on start-up is normal. It is not, however, normal once the platter is up to speed. I agree with giving the platter a push as you turn the table on. Although I personally have a P25 which does not have the "thunk" on start-up, my brother uses a P3. We recently installed the new motor upgrade that is now available which gets rid of this noise. While performing the upgrade it became obvious as to why the noise occurs with the original motor. It's mounted, IMHO, in a really cheesy manner with, essentially, rubber bands. The motor literally hangs there and can flop around. I think Rega made a great evolutionary improvement with the upgrade to the P3. Be advised that the upgrade kit my brother got came with no instructions. I would assume that the intent is to have this installed by a competent dealer. Fortunately (for my brother) I have an electronics background and was able to discern where to wire to the new regulator board. The motor upgrade is very solid. You must determine for yourself if it's worth the $150.
Luck to you...Woodrow

If you have an older Planar 3, the start up rattle is normal, but not the continued rattling. The new P3 motor has a different mounting scheme which shouldn't rattle at all. This motor is offered as an upgrade to older tables for 155.00. I would recomend this as an upgrade if, in fact, you don't already have it.