Power Supplies & Performance

@Parabolic - I had the Panamax 4300 in my system for a while.

Initially, it made some improvement to the sound and like others have posted, I found that plugging high power components, like the amp and in your case the sub, directly into the wall provided better control of all the speakers.

I've since removed the Panamax from the system, because the voltage is stable in my area and I have a dedicated power line, so noise on the line is minimal (if any)

The improvements I have found in removing the Panamax are...
- better imaging
- improved dynamic perofrmance

In your case to get the best improvements with the panamax still in place would be to replace the wall outlets with at least, hospital grade outlets - I have MRI grade outlets that have NO magnetic material in their construction. I bought them from Take Five Audio - they are also cryo treated (if you believe that makes a difference)

These outlets provide much tighter clamping of the plugs

You should notice improved dynamic performance with better imaging

If you are still using stock power cables i would recommend replacing those. Signal Cable has some pretty good cables at reasonable cost.. Their Silver Resolution series is pretty good

If you are into basic DIY then I would recommend Sonar Quest silver plated copper (ebay) IEC/Mains connectors together with DH Labs Encore for source components and Power Plus for the amp.

If you are really into advanced DIY then take a look at this site
http://image99.net/blog/

The Helix are my own design and are superb performers - ask @toddverrone for his thoughts - he has built Speaker, IC and power cables.

This thread covers our experience designing and building his bi-amp'd version of the speaker cables
https://forum.audiogon.com/posts/1435981

Going back to the Panamax and frequent power outrages.

If it were me I would think about investing in something much more robust than the panamax 4300. 

I have looked at the Furman products in the past and they look very good.

The Furman SPR201  would be my choice of product for your system
http://www.furmanpower.com/product/ref-voltage-regulator-20a-SPR-20I

The nice thing with this product is that you can plug in your own power cable.

The SPR201 may seem like a lot of money, but not as much as having your gear repaired after a power disruption

Hope that helps

@gdhal - that's interesting - was that a recent merge/takeover?

Do you know if their product lines are the same?

When I looked around 2-3 years ago, Furman appeared to have slightly more "professional" products.

Cheers

@gdhal - thanks for the update - I'm going to look into the CMX-2 - looks very interesting.

Thanks

@parabolic...

Seems the consensus is that a power filter/conditioner helps reduce noise, therefore improves sound.

They do - assuming that you have noise to begin with.

Some might argue that there is always noise, but it would seem that noise in my Audio system is so low I have not noticed a difference, so there is no conditioner.

My A/V might have a little more noise and so it has a conditioner.

It really depends on the components you have in a system and their quality e.g. the mode affordable consumer products from Best Buy may generate more noise then the higher priced products from A/V specialty stores.

The only thing to do is try removing the conditioner to see if it makes a difference - if not - leave it out

The other thing to remember is that power conditioners tend to have better outlets than power bars, so there is benefit there.

If you wanted to get rid of the conditioner then I would suggest getting a PS Audio Dectet Power Centre. it has basic common mode and differential mode filtering

There are also the following from Furutech...

Unfiltered - http://www.furutech.com/products/power-distributors-filters/unfiltered-distributor/

Filtered - http://www.furutech.com/2013/01/31/1522/

All of the above have outlets that clamp much better than many power conditioners, especially the Furutech products. That is a huge benefit for all devices - not just amps

The disadvantages of power conditioners (generally speaking) ...
1. they can compress the sound of high current-draw devices like amps, which reduces their dynamic abilities
2.The Panamax devices wire each zone in a star configuration, but each outlet in that zone is wired in parallel to the other outlets in that zone, so cross contamination sill occurs between components sharing that zone.

Cheap power bars have all the  outlets wired in parallel, so contamination across devices is very common

Hope that clarifies things a little more

Regards, Steve