Grounding ?

A cheater plug is a good idea for testing. Not sure if its a good idea to use it permanently. To float the grounds in my system, I put a piece of electrical tape on the ground prong of the IEC connector on my transport and DAC. That way when I plug in the power cord, there is no contact for the ground. My preamp is passive, my TT uses a two prong power cord, so the only gear using three prong connector is the amps.

Having all your gear grounded via electrical outlet can create problems on some systems. To eliminate hum/ground loops only one component (usually the preamp) needs to be grounded and anything else connected to this unit via interconnects will become grounded as well. This is more desirable.

Thanks for the response guys! I just looked at the back of my Rega and it does not have a ground coming out of the back of the unit so I'll try lifting the ground on the pre-amp instead of the amp. How can I insure the tap does not push back on the IEC when I push the cord in?

Thanks,
Wig

---> Bob,
why relying on grounding through mass of interconnect cables is bad idea?

I have preamp and two monoblocks - all with unbalanced connection only. Ground is connected to the chassis internally. I have mains cord grounded only in preamplifier. Both monoblocks have lifted ground in power cords and are grounded through interconnects and preamplifier's power cord.
All hum disappeared and such connection seems to be safe (monoblocks are grounded through preamp). What is wrong in such approach?