Parasound Halo A21 - Power conditioner?

The answer is simple. Try it both ways and see if you can hear any difference.

hi, i have the same condtioner and a emotiva xpa-2. emotiva states that their amp has built in treatment that would make running it thru a conditioner redundant. but you can if you wish. i have tried it both ways [using ps audio premier ac on dedicated line] and can hear no difference. presently connected to the furman for convienence. if no experts write i,d possibly call parasound customer service on monday. i hear they are really interested in their customers. good luck

I owned an A21 and also have the schematics. There is a minimal amount of power supply bypassing in the power supply to absorb line tranients, but nowhere near as much as in a good line conditioner like the PS Audio or the Furman (and no MOVs or other SS protection).

Irrespective of any sonic effects, I would always use a line conditioner on an expensive amplifier simply to prolong its life. High voltage line transients can destroy solid state devices in a few nanoseconds, and they can get past the input transformers if they are high enough in frequency.

I recommend against using any kind of line conditioner on an amplifier, including the A 21. If you are concerned about surges and lightning strikes, unplug it when not in use.

Parasound Halo dealer.