Before we plunge into a conditioner some basics first. Get a circuit tester and multi - meter. measure to see what voltage you have at listening time.
Check the circuit with tester to verify proper wiring. If all wired right and we have 122V good.
Remove existing receptacle, disconnect wires and clean them. clean receptacle as well. reinsert wires after treating with pro-Gold and tighten well. Change the receptacle to a 20A industrial type.
Now we can try conditioners. There are several ways to do such. One is a isolation transformer plugged into dedicated circuit then using a power conditioner plugged into that.
Isolation of digital gear is key to any power set up. If one can have two dedicated circuits using one for digital and one for analog even more affective.
If not the conditioner selected must have a dedicated line for digital.
Some designers and power experts suggest no conditioning of digital gear only the analog. Lifting the chassis ground [ if available on unit ] on digital is a plus. Power must be grounded but not the chassis. Can be a big improvement.
One can try regenerating power conditioners, Balanced, brick wall, etc. They ALL have an effect on the sonic outcome. Not all conditioner work with amps well. Loss of dynamics can be a result.
To date I have tried numerous conditioners. The one that does the least harm sonically is the Uberbuss. Using one for digital and one for analog fed off one dedicated 20 A line.
No matter what PC used the Alan Maher devices were installed at the wire entry of the elec service and one in the receptacle box of the dedicated line. These devices are never going to taken out. Yes a royal PITA to settle [ 3 weeks] however worth every minute waiting. Result is more dynamics, more info and deeper bass.
Almost forgot some more basics. All power cords should be lifted off the floor. None should touch each other. Keep at a minimum 6 inches apart. Digital ICs should be shielded as well as TT ICs. Keep power cords away from internal in wall wiring as well 6 inches minimum. Keep conditioners away from gear at least two feet.
Wire management is a part most neglect. ICs, speaker cable, power cables can interfere with each other so get to work and my bey you will hear better sound.
A disclaimer I sell the Uberbuss.
charles