Best multi channel amp and processor good for 2 channel listening.

@maguiar 

Overall I found Transparent cables better than Audioquest but would generally cost lot more than Audioquest. All Transparent, Audioquest, Shunyata Research, Kimber Cable, Nordost, etc come with wide price ranges starting from couple hundred dollars to tens of thousands of dollars. For example, Transparent Wave speaker cables, which is an entry level, retail for $250 to $300 per 10 foot pair whereas the Transparent Magnum Opus speaker cables cost at least $65k per 10 foot pair. 

Shunyata Research also makes outstanding cables and AC power products but are very pricey. Shunyata products are also used by many professional advance mastering or recording studios eg Abbey Road studios, etc. Lot of hospitals also use Shunyata AC power products for their highly sensitive medical equipments. 

Furman AC power products are good but I think the Audioquest Niagara and Shunyata Denali or Hydra power products are better than Furman IMO. 
PS Audio also makes excellent AC power products. There are countless other options out there. 

maguiar,

@caphill is spot on, there are ranges in AQ much like all cables.  Choosing manufacturer and line comes with demoing and preference, more important how one cable works in one system but not well another no matter what the price.

There are so many different threads on cables and so many schools of thought.  People have different opinions.  I can only speak to what I have heard personally and analog interconnects/speaker cables make a fairly noticeable impact in my system. I recently did some cable comparisons with non-audiophile friends and they heard the difference immediately, enough where there was a discussion on pros on cons.

I definitely agree with @auxinput's recommandations on solid core conductors.  For AQ, I would recommend the copper Water or even better Earth.  Preowned you can find on the marketplace ~$300-$600.  If you need more resolution, then silver but pricing goes up 2-3x across manufacturers.

I own a Furman IT-Reference 15i and think it's great.  Though I haven't gotten into the power side as deeply as speaker/interconnect cables.
At some point I want to demo the AQ Niagara and Shunyata products.  Almost everyone I have spoken to who has tried them really liked them both.  Furman shouldn't be too bad in comparison since their lead design, Garth Powell, left to join AQ a little while back.  He designed the Niagara power products, cables, and recently helped in the design of the new line of speaker cables.  The AQ Thunderbird Zero speaker cables I own are the most resolving copper cables I have heard.

My recommendation is build out a balanced system and not focus on just one area.  From my experience, it all makes a difference.

@caphill, do you run your amps through conditioners or directly to wall?  Some manufacturers recommend going directly to the wall, but I imagine with the higher end Shunyata and AQ conditioners it could be beneficial.

One really good option if you want a "pure silver" cable is the Audio Sensibility "Signature Silver" interconnects.  It uses all OCC solid-core silver conductors (20/22/24 awg sizes).  I used to run these in my system before I went to all copper.  It is in Canada and lists CAD prices.  A 1 meter XLR pair would be about $1,000 USD.  For the money, I don't think you can get a better "pure silver" cable.

However, I would not recommend their Statement and Impact lines because they do not use solid-core conductors.  Their Impact line actually sound pretty crappy (even though it uses OCC copper).  I have tested that in my system.

@eziggy

To answer your question, it depends on your amps and whether or not your AC line & wall outlet(s) have been upgraded or not. If your amps aren’t high current amps and don’t consume that much you can plug it to your Furman. What kind of amp(s) do you have?

In one of my dedicated reference stereo setup I have a pair of Naim Statement NAP S1 monoblock amps and these are very high current amps so they are plugged directly to the wall but I have dedicated lines and all the lines and wall outlets & circuit breakers in my listening rooms have been upgraded to much higher amperage and using high quality and upgraded witings, higher grade circuit breakers, etc, etc. So only my Naim Statement NAP S1 monoblock amps that are plugged directly to the wall since these amps can burst into 6KW (6000 watts) into 1 ohm per channel, and the rest of my gears are plugged to my Shunyata Hydra Typhon NR Triton combo products. The toroidal transformer power supply of these amps are about the size of a Mini Cooper wheel and the amp has the largest power supply capacitors you will ever see. Each amp (each channel) weighs about 235 pounds per channel. 

In my other reference stereo setup I have 2 pairs of Audio Research Reference 750 SE vacuum tube monoblock amps both-amping the Sonus Faber Aida ll speakers and these amps are plugged directly to the wall since these are also very high current amps and the rest of the equipments are plugged to the Shunyata Hydra Typhon QR Triton combo products. Been major works done with all the AC lines and wall outlets in this listening room too.

But in my dedicated reference theater room I have 2 AQ Niagara 7000 power products. Everything are plugged to them except my 2 JL Audio Gotham subwoofers that are plugged directly to the wall. All my big Classe Delta series class AB amps are plugged to the two AQ Niagara 7000. I have 3 big Classe Delta CAM600 class AB monoblock amps driving my front LCR speakers, 2 Classe Delta CA-2300 class AB stereo amps driving my surround speakers and an NAD M27 seven-channel amp driving my 6 height ceiling speakers for Dolby Atmos setup. So everything including the preamp processor, Oppo 205 player are plugged to two AQ Niagara 7000.
All the AC lines and wall outlets circuit breakers have been worked on.

Thanks @Cahill,

Appreciate the overview, very helpful. You have some amazing setups! Sounds like you have done some great work with your AC lines.

I currently have the Luxman 509X integrated. It’s plugged into the wall right now, but may go through the Furman at some point to compare. Prior to this I had the McIntosh MC452 and that was direct to the wall.

Those Naim monoblocks are insane and have some serious power!