QUESTION: Does your amp have a Good power cord - if yes, then switch cords and see what happens
Since you have a dedicated line - you've already ventured into the `Power Zone`
As you have probably read on Agon - for many of us, power components (cables, outlets, connectors etc) are considered as important as any other component in a system
A dedicated power line may negate the need for a power conditioner - that is unless you have a noisy digital source impacting the whole system.
My personal journey started with a Panamax power conditioner - and yes, it made a difference.
Once I installed a dedicated power line I then proceeded to verify if my power conditioner was necessary, by replacing it with a DIY Power Distribution Centre that used good quality parts and cables e.g. Pass and Seymour MRI outlets $24 each and Furutech power cable. I also replaced all my power cables. AND THEN I LISTENED :-)
In my case the DIY Power Distribution Centre out-performed the Panamax and my `environment` is quiet, so no need for any `conditioning`. Granted, I have no surge protection, but I`m planing a household unit for that anyway. It is however, protected by pushbutton breakers similar to power conditioners.
Also, all of my power cables are sheilded with a floating shield design (i.e. the shield is only connected to the mains plug) the theory being any `noise` is grounded at the socket and does not impact the component.
So - I could say YES replace it, but since I do not know everything about your sytem - I would be guessing.
The next question is - what is a good brand of power cord
I have tried two brands with great success...
- DH Labs Power Plus is very good and affordable
- Furutech are excellent and a little more expensive
If you can attach a plug to a cable then go the DIY route
- my 7ft DH Labs 12 gauge DIY cable cost around $75
- my 7ft 10 gauge Furutech DIY cable cost around $250 (for amps)
- my 7ft 14 gauge Furutech DIY cable cost around $$160 (for sources)
And yes - the furutech are better than the DH Labs, but its very very close.
There are a whole host of assembled after market cables and one that springs to mind as GOOD & AFFORDABLE is the Pangea brand - lots of positive feedback on them here on Agon
One last thing - if your outlet is just a standard 20amp from Home Depot - replace it with a Pass and Seymour MRI Grade 20 amp outlet. Your ears will thank you :-)
I have listed my favourite components, but there are many more out there - I always start with reasonably priced and work up from there. Furutech, Oyaide and othes are the creme of the crop, PS Audio a little more reasonable - your choice
One IEC and mains connector I have used and was impressed with, is available on Ebay called Vanguard - at $21 for the both of them - granted they are from China, but they are gold on copper and work very well.
Hope this helps with your decision :-)