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Eddie Current Zana Deux owners - Page 77

post #1141 of 1737
I use an isolation transformer on my Zana Deux. You can find several available for hobbyists under $50.
post #1142 of 1737
Quote:
Originally Posted by SteveM324 View Post
I never used the stock power cord, it's being used on my LCD TV. I agree that big power amps should be run directly from the wall. I plug my McIntosh MC275 V5 tube power amy directly into the wall bypassing my Running Springs Jaco. Both of my headphone amps are plugged into my PCs. Also my CAT SL1 Ultimate vacuum tube preamp is plugged into the PC as well as all of the sources.
Ok cool. So you don't worry about the "sawtooth wave" from the pc ? I also thought you had the Stefan Art ribbon umbilical, your green cable. Craig seemed (for the most part) disinterested in the idea of power cables, so I've let it roll. And concerning potential mods, I'm wondering if the power supply could possibly be modified while leaving the unit intact.

Quote:
Originally Posted by robinje View Post
I don't use a power conditioner on my ZD or any other of my components. I've tried a few (PS Audio Quintet, BPT, etc.) but I could hear no audible benefit, so I sold 'em all. Straight to the wall (via BPT 'power strip' with no filtering, etc.) works for me...
I let my Mattijs handle his power from the wall on his dac, my first custom power cable. It's very nice. I have thought about using the same one on the Zana. Otherwise I am just using a regular splitter down there as well.

Quote:
Originally Posted by Uncle Erik View Post
I use an isolation transformer on my Zana Deux. You can find several available for hobbyists under $50.
This is what Dennis recommended I buy off eBay for my source. Does it make any noise ??
post #1143 of 1737
Quote:
Originally Posted by Karo View Post
Ok cool. So you don't worry about the "sawtooth wave" from the pc ? I also thought you had the Stefan Art ribbon umbilical, your green cable. Craig seemed (for the most part) disinterested in the idea of power cables, so I've let it roll. And concerning potential mods, I'm wondering if the power supply could possibly be modified while leaving the unit intact.



I let my Mattijs handle his power from the wall on his dac, my first custom power cable. It's very nice. I have thought about using the same one on the Zana. Otherwise I am just using a regular splitter down there as well.



This is what Dennis recommended I buy off eBay for my source. Does it make any noise ??
The umbilical cord in the photo is stock.
post #1144 of 1737
Quote:
Originally Posted by Karo View Post
Ok cool. So you don't worry about the "sawtooth wave" from the pc ? I also thought you had the Stefan Art ribbon umbilical, your green cable.
Sorry, I have no idea what you are talking about in regards to "sawtooth wave". The green cable is stock from Craig.
post #1145 of 1737
When listening to a Zana Duex amp what we are listening to is A/C from the wall that is converted to D/C and then modulated by the music source. Therefore the nature of the A/C entering the ZD is critical. At my first location for the ZD ,the A/C ran through a PS Audio Premier Power Regenerator. This is one proven approach. Nice quiet background- an improved sound over straight from the wall. Currently the ZD is in a different room. Here I am using Alan Maher.com CBI filters on the A/C circuit. This is a different approach but also has a good sound. Power cords and umbilical cords will diffinately change the ZD's sound. Putting the Stephen's Audio Art umbilical cord in the system made the ZD sound faster and more open- I like this change. Adding his power cord was too much of a change to my ears.
I encourage each user to read about the importance of good A/C and control of RF pollution. There is more than one way to maximize good sound.
I now do not use roller ball vibration controls under the Zd. Turning my head with phones attached, I pulled the Zd from the desk to the floor. OUCH! Four broken tubes. The good news is the new RCA rectifier tubes and the new output tubes sound better than my previous tubes. Craig builds a tank like product!
Static or crackles in one channel,

I would try cleaning the tube sockets, making sure the tube sockets make a snug fit, and then maybe replacing tubes.
David Pritchard
post #1146 of 1737
Quote:
Originally Posted by SteveM324 View Post
Sorry, I have no idea what you are talking about in regards to "sawtooth wave". The green cable is stock from Craig.
This is actually in reference to a battery backup power device used w/ a computer, the type of power wave it generates (in my limited understanding of it ). I have a very large hesitation using hifi w/ pc, but if it sounds great .... I'm glad to hear about it.

Nice update David .... but OWCH !!!! Very sorry to hear about that. Glad to hear you are enjoying Stefan's ribbon, that's what I wanted to hear about as well. I just wish someone would explain the principles involved.
post #1147 of 1737

zana power / pop my trunk

The photo reminded me .... I need to add some rubber feet on my mahogany scraps.





Larger Version (thumb)



Mr. Royal .... my assistant / in-house engineer





a little dac pron ... for my buds.

post #1148 of 1737
Quote:
Originally Posted by Karo View Post
This is actually in reference to a battery backup power device used w/ a computer, the type of power wave it generates (in my limited understanding of it ). I have a very large hesitation using hifi w/ pc, but if it sounds great .... I'm glad to hear about it.

Nice update David .... but OWCH !!!! Very sorry to hear about that. Glad to hear you are enjoying Stefan's ribbon, that's what I wanted to hear about as well. I just wish someone would explain the principles involved.
I'm not using a computer in my system. So I still don't understand what you are getting at.
post #1149 of 1737
Quote:
Originally Posted by Karo View Post
This is actually in reference to a battery backup power device used w/ a computer, the type of power wave it generates (in my limited understanding of it ). I have a very large hesitation using hifi w/ pc, but if it sounds great .... I'm glad to hear about it.

Nice update David .... but OWCH !!!! Very sorry to hear about that. Glad to hear you are enjoying Stefan's ribbon, that's what I wanted to hear about as well. I just wish someone would explain the principles involved.
I abbreviated power conditioner as (PC), not a personal computer if that is what you are referring to. I currently don't use a personal computer in my audio system.
post #1150 of 1737
Quote:
Originally Posted by SteveM324 View Post
Both of my headphone amps are plugged into my PCs. Also my CAT SL1 Ultimate vacuum tube preamp is plugged into the PC
In my quote above, PC = Running Springs Power Conditioners. I have a Running Springs Haley power conditioner in my headphone system. Also I have a Running Springs Jaco power conditioner in my speaker system.
post #1151 of 1737
Gotcha ! You had me going there Steve.

Sounding good this morning gentlemen.
post #1152 of 1737
Quote:
Originally Posted by Karo View Post
This is what Dennis recommended I buy off eBay for my source. Does it make any noise ??
No, they remove noise and ground loops. The big benefit is that an isolation transformer takes DC off the line. DC can saturate a toroid easily, so an isolation transformer is important there.

Quote:
Originally Posted by David Pritchard View Post
When listening to a Zana Duex amp what we are listening to is A/C from the wall that is converted to D/C and then modulated by the music source. Therefore the nature of the A/C entering the ZD is critical.
No, it's not that critical. What can help, as I mentioned above, is getting the DC off the line to help the toroid and isolating ground loops.

Aside from that, the quality of the AC entering a Zana isn't all that important. Which is one of the reasons I bought one.

The Zana has a very high quality power supply, including four chokes. When you have that kind of filtration, what goes in really doesn't matter much.
post #1153 of 1737
Quote:
Originally Posted by Uncle Erik View Post
No, they remove noise and ground loops. The big benefit is that an isolation transformer takes DC off the line. DC can saturate a toroid easily, so an isolation transformer is important there.
What I meant was do they make any noise while in operation, any little hums. Are you using it with everything ? The ones I found online were very interesting, came from unusual places. Thanks Erik.
post #1154 of 1737
Quote:
Originally Posted by KevinR70 View Post
Has anybody tried the Dennon 7000 with the ZD? I was thinking of picking a pair up, but didn't know what kind of synergy that have with the ZD. Thanks.

Sorry for the delayed response. My ZD SE had no problems driving the D7000 very well. I was listening to that combo this afternoon and it sounded superb. No issues at all driving a low impedance can like the D7000. The D7000 is a fantastic closed can and it would be my first choice among the currently available closed cans. I like it much better than the Edition 9s that I had prior to them.
post #1155 of 1737
How does the ZD do with the Beyer T1? It works great with my HD650's, but I am considering a headphone upgrade and the T1 has my interest. Any experience here?
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