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What power cord for your Woo amps?

post #1 of 24
Thread Starter 
Since the power cords are not included with the amps, what kind of after market power cords are you using?
post #2 of 24
Just an old computer cable on mine.
post #3 of 24
I would really recommend an used Signal Cable magic reference. I think used for 40-50 bucks depending on length if you can find one, albeit a bit stiff, it is vastly superior to the Iron Long Jellyfish.
post #4 of 24
As much as I hate the thought of expensive cables, my Woo Audio 2 was initially injecting random noise into the sound. After discussing it with Jack and doing a few checks I determined it was power related. I was using a cheap AC power cord from an old computer. I tried a few other cheap cords I had lying around and the problem persisted.

I hesitantly bought a Green Dragon power cable from Moon Audio on eBay and plugged in my WA2 with it. The noise completely vanished. So that made me a believer and I purchased another pair of those cords for my Woo 300B monoblock amps that will be shipping to me this Friday.

--Jerome
post #5 of 24
Thread Starter 
Maybe the cheap power cords that you tried were not shielded? Usually aftermarket power cords are shielded.
post #6 of 24
The romex in your wall isn't shielded. I have found that well constructed power cords actaully perform some filtering and this is where the good ones have a positive effect.
post #7 of 24
Volex or iron lung jellyfish are cheap and do make a difference compared to a cheap computer cord.I use an iron lung jellyfish and it has seemed to open up both ends of the frequency spectrum.I am only using a SOHA amp though.I got my jellyfish(Quails?) for $ 30 for two about a year ago.
post #8 of 24
I've found that with relatively high powered amps, the power cord has minimal
effect in SQ...exotic power cords seem to be more salient in the signal path
when the equipment is low to medium in voltage consumption.

you can check to see if yours is a high powered one by turning off the amp
while continuing to listen via headphone. if you hear music for more
than 5 secs after power is turned off, then you have a high powered amp.

the WA-6 is a relatively high powered amp and benefits minimally from using
an exotic power cord...save that money for the decoupling caps or tubes...
post #9 of 24
I am feeding the WA6 via an Audience Power Chord, tapped from a PS Audio Duet. Very quiet.

F. Lo
post #10 of 24
Thread Starter 
Quote:
Originally Posted by takezo View Post
I've found that with relatively high powered amps, the power cord has minimal
effect in SQ...exotic power cords seem to be more salient in the signal path
when the equipment is low to medium in voltage consumption.

you can check to see if yours is a high powered one by turning off the amp
while continuing to listen via headphone. if you hear music for more
than 5 secs after power is turned off, then you have a high powered amp.

the WA-6 is a relatively high powered amp and benefits minimally from using
an exotic power cord...save that money for the decoupling caps or tubes...
Hmmm.....that's interesting. If i do get a high powered amp, I'll just get a budget cord that's shielded. Probably all I need.
post #11 of 24
Thread Starter 
Ok, here's my dumb question:

Is the Woo 5 a high powered amp? I know it has a seperate power supply. Sorry if this is a dumb question.
post #12 of 24
It's not a dumb question but I don't see how having a reserve in joules is to be equated with a high power amp. A high power amp might be a 2 to 4 hundred watt amp or more for speakers or something that requires a pretty good current draw and with a good current draw, as in a high power amp (not capacitance reserve as the two do not always mean the same thing). When you do have a good current draw there is all the more reason to have a substantial power cord but also remember that most household wire in the US is 12 gauge. Most headphone amps are not high powered or high current draw amps but some can have a fairly good capacitance reverve, which is stored energy as in joules. I have found good power cords to work with most all audio equipment be that power amps, preamps or headphone amps. Just my opinion and experience. There are no absolutes.

I do find that the construction of a power cord can act as a filter and this is what can have a positive effect on sound. There are a number of things that can ride on the AC and cleaning this up can have a positive effect.
post #13 of 24
Quote:
Originally Posted by takezo View Post
I've found that with relatively high powered amps, the power cord has minimal
effect in SQ...exotic power cords seem to be more salient in the signal path
when the equipment is low to medium in voltage consumption.

you can check to see if yours is a high powered one by turning off the amp
while continuing to listen via headphone. if you hear music for more
than 5 secs after power is turned off, then you have a high powered amp.

the WA-6 is a relatively high powered amp and benefits minimally from using
an exotic power cord...save that money for the decoupling caps or tubes...
woot technical ignorance at it's finest!
" if you hear music for more
than 5 secs after power is turned off, then you have a high powered amp."
that just means you have alot of rail capacitance (eg. my amp takes about 2mins to stop playing properly)

".exotic power cords seem to be more salient in the signal path
when the equipment is low to medium in voltage consumption. "
voltage consumption!?!?! the power cable isn't in the signal path (unless you like listening to 50/60hz tones for some reason).

*My amp has the power cord soldered onto the transformer and is only 1m legnth and is 13A cable... FUSED aswell OMGWTFBBQ how much did I spend, well about £2 on the cable and plug ^ ^ *

you are right that power cables make not a jot of differance though although if it makes you feel better continue giving the fraudsters/delusionals that sell them your money.... it's probobly better you don't have it.
post #14 of 24
Thread Starter 
Does cord gauge matter too for amps?

I see the choices of cords, like 10 guage, 12 gauge and 14 gauge.
post #15 of 24
I'm using a 7' - 18ga shielded/grounded power cord with my WA6 (cord was a left over from work) and the amp sounds fantastic. (Deathly silent during pauses in the passage). Personally I'm with kipman725 when it comes to exotic power cords...
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