Questions About Bulk Power Cable, Sugestions Needed

Stereo5 - electricians are "generally' more concerned about how a cable services the continuous power demands and as such, your friend is not wrong.

However, in the audio world it's all about how good a cable can respond to the extreme power requirements of the system  when attempting to service loud transient demands.

E.G. the extreme transients current demands such as those required to realistically reproduce a loud drum strike - these can be very short in duration but require a significantly larger initial current draw than the continuous power requirements for the other instruments.

This is the type of transient response people tend to notice the most when a quality cable is installed.

However, as we incorporate quality power cables into our systems and as time goes by, we start to hear the more delicate nuances and textures of the music that are now discernable, due to the higher quality and conductivity of materials used and the architecture/geometry of that cable. 

A basic understanding of a some of benefits quality cables provide...
- The quality of the materials generally improves the dynamic performance of a cable and the clarity of the system

- The architecture/geometry generally reduces the "noise floor" i.e. it improves the cable's ability to reject noise, again improving the clarity of the system

- Also remember in a two channel system, if the reproduction of even one  channels is not 100% accurate - there will be phasing issues that creep in, impacting the imaging of the system.

There is of course much more to this, which a mere "hi-fi mortal" such as myself, is yet to understand :-)

Regards...

+1 for DH Labs Power Plus - I've used is many times

Performs as good as 10 gauge Furutech, but  much much cheaper

Only $8/ft

Regards...

+3 on the DH Labs Power Plus

Not sure why you would want a 40-foot long power cord.  If you are able to make changes/improvements to where you are living, I would recommend having an electrician run  a new 20A dedicated line (10awg Romex) directly from the electric panel or install a sub-panel and then new outlets near where you want to power your system.

I second hdm, D.H. Labs Power Plus

http://www.ebay.com/itm/DH-Labs-Silver-Sonic-Power-Plus-AC-RAW-Power-Cable-sold-by-the-Foot-DIY-/390...

I've been through numerous power cords over the last few years, everything from Gutwire, Stealth, Electraglide, Fusion Audio, 6Sons Audio...... and so forth.  Eventually, I began trying different wire with premium plugs ( I prefer the Oyaide 046 and the Iego 8095).  One of the early copper cables I experimented with was those offered by polarwire.com    I used them for both speaker cables and as power cords with pretty good results.  Perhaps you could acquire a short run of a suitable power cord, install your plugs, and see what you think.  The prices are very affordable and you might just find the sound to be all you need.  I very much preferred these power cords with Iego plugs to a Cardas Crosslink power cord.  These polar cable power cords were much more revealing of inner detail and had a weightier presentation while also being more articulate in the bass and the soundstage was deeper, more palpable.  Really, there was no comparison; the cords were in different leagues.  I prefer silver wire but, for copper, these are really quite good and stupid cheap for what you get.  Good luck with your search.

http://www.partsconnexion.com/dhlabs_64435.html

DH Labs Power Plus

Very good cable-works well in all applications in my experience. I currently use it (terminated with Marinco male & IEC) on my integrated, line conditioner, phono stage and Blu-Ray/CD Player. 

Preferred it to a number of more expensive power cables including Blue Circle BC 62 and Cardas Golden. 

I'd describe it as being just marginally on the warmer side of neutral. Not dead neutral perhaps, but nothing like the Cardas Golden which was all warm, syrupy and dark. 

Parts Connexion has 10G Audience cable in bulk for 12.95/ft.
http://www.partsconnexion.com/wire_ac_auric.html

I have used this for several years with Wattgate and or Oyaide connectors. Works as well as $200 power cords. Especially nice if you need flexibility. Highly recommended.
http://www.awcwire.com/part.aspx?partname=sjoow-10/3

Good luck!