Hi,

I am using power isolator from Transparent Cable. It improves the sound in my opinion. I use DSP 5000 24/96, they sound is more ease and dynamic contrast improves as well. The vocal is just more lively and I can hear slight change of the tone of the singer.
Once you use it, you are hooked.However, regarding changing the digital cables, you must be carefull. My experience is they are different but not neccesarily better. I found that by changing to even much more expensive digital cable will compromise the pace and the rythem of Meridian system. I did not it. It was sparkling at first though.

Cheers,

Harry

Dargo