Head-Fi.org › Forums › Summit-Fi (High-End Audio) › High-end Audio Forum › Eddie Current 2A3 - New updated version, new look with polished top
New Posts  All Forums:Forum Nav:

Eddie Current 2A3 - New updated version, new look with polished top

post #1 of 69
8/25/12 at 9:08pm
Thread Starter 

 

 

Here is a picture of the new updated Eddie Current 2A3 with new look.


Edited by SleepyOne - 8/26/12 at 6:02am
Reply

Head-Fi's Best Sellers

post #2 of 69
9/29/12 at 11:10am

nice.  Can you post a pic of the back side?
 

Reply
post #3 of 69
9/30/12 at 6:32am
Thread Starter 

Sure, here are a few mobile phone pics, sorry for poor quality. Note my amp uses partial silver output transformers so it has only got 8 ohms speaker output. I am not sure what the back of the normal stock* copper output transformers version look like, best check with Craig. However, I do know there is a custom (speaker amp) version of EC 2A3 that has a back with multi speaker taps, see pic below. 

 

* I think stock version can switch between different ohms like 4, 8, 16, but I am not sure, please check with Craig.

 

 

 

The switch at the middle is for switching between 2A3 and 45. The speaker posts are cardas copper.

 

 

 

 

Black plate of special custom version of EC 2A3

 


Edited by SleepyOne - 9/30/12 at 7:03am
Reply
post #4 of 69
9/30/12 at 10:53am

wow, that's a serious looking power umbilical
 

Reply
post #5 of 69
9/30/12 at 10:58am

If the 2A3 is the same as the BA, that just connects the amp to the external PS.  You can see where the normal power umbilical is inserted on the picture of the back of the PS.

Reply
post #6 of 69
9/30/12 at 11:14am
Thread Starter 

Seems Craig has now used metal plugs (on both amp & power supply) for the umbilical cord, so very sterdy.

 

 

Power supply size, very approx. about 12 cm x 21 cm x 17 cm (incl. rubber feet etc but not incl. rectifier tube). Weight around 13 lb.


Edited by SleepyOne - 10/8/12 at 11:43am
Reply
post #7 of 69
10/2/12 at 10:17am

I now want this.  Real bad like.  Awesome move on the umbilical, the plug is a nice touch but probably not necessary.  I may even have to move the ZDSE along...

 

It's rare I run across speakers that are 16 ohm.


Edited by Mr.Sneis - 10/2/12 at 10:21am
Reply
post #8 of 69
10/2/12 at 10:28am

Replace the stock power fuse with a Synergistic Research fuse for a significant improvement. It made a good improvement to my Zana Deux amp. Available from Scott Walker Audio, The Tweek Geek, The Cable Company, and other vendors- $59.00 well spent.

 

David Pritchard

Reply
post #9 of 69
10/2/12 at 12:24pm
Thread Starter 

Thanks David for great tip! I was thinking about that....

 

Mr. Sneis - Zu speakers is an odd exception which uses 16 ohms. With stock output transformers, I think you get choice of differnet ohms for speaker outputs (please check with Craig). As mine is partial silver version so limited to 8 ohms output only. Craig thinks the stock copper output transformers are better for speaker (for some technical reason); apparently one could even order special custom speakers only version with Tango output transformers (expensive as you can imagined).

 

Forgot, in term of heat, what heat!? The amp is not hot (need to put hand a few cm from power tubes to feel some warmth), I even touch the EML 45 by accident without problem lol! The power supply supply does get warm and the rectifier tube does glow orange (not touching that!).

 

The amp or most likely the EML really does takes a long time to break in (100-150 hours not including all the rest periods as required by EML instruction). Initial changes are pretty big to say the least.


Edited by SleepyOne - 10/2/12 at 1:56pm
Reply
post #10 of 69
10/3/12 at 12:27am
Quote:
Originally Posted by Mr.Sneis View Post

Awesome move on the umbilical, the plug is a nice touch but probably not necessary.

 

 

 

I don't want to claim any 'credit' for this development, but after several umbilical-related failures on my ZD SE (the last specific to the plastic plugs / sockets) I specifically asked Craig to replace them with non-flexing metal alternatives.  Below is a snap of my amp, at Craig's place I think, in August.  Has been rock solid since arriving back home.

 

Edit: can't get the photo to load, for some reason, but it's the same connector....

 

 

Quote:
Originally Posted by David Pritchard View Post

Replace the stock power fuse with a Synergistic Research fuse for a significant improvement. It made a good improvement to my Zana Deux amp. Available from Scott Walker Audio, The Tweek Geek, The Cable Company, and other vendors- $59.00 well spent.

 

David Pritchard

 

Not to turn this into a Zana thread, but ....  where within the amp does the fuse go, David?  Presumably it necessitates removing the baseplate of the main unit??


Edited by 40Hz - 10/3/12 at 12:38am
Reply
post #11 of 69
10/3/12 at 1:37am
Should be in the power supply above the iec cable socket.
Reply
post #12 of 69
10/3/12 at 2:02am

Just underneath in fact - thanks for the pointer!
 

Serves me right for not looking...

Reply
post #13 of 69
10/3/12 at 2:16am
Thread Starter 

40Hz - excellent that you help to up the socket to metal type, thanks! For my power supply the fuse is also where the IEC plug locate (the flap just under the ICE hole). 

 

Lastly, initial impression seems that rolling rectifier tube does seems to have some effect, will update more later; I am getting good result with Sovtek GZ34 but even better with good tube.

Reply
post #14 of 69
10/3/12 at 2:48am
Thread Starter 

In term of volume control upgrades, originally I was planning for a P&G RF15, however due to tight space issue it is not possible so a Spectral pot (similar level) was used instead. Here is a pic:

 

 

 

 


Edited by SleepyOne - 10/3/12 at 6:39am
Reply
post #15 of 69
10/3/12 at 2:56am
Quote:
Originally Posted by SleepyOne View Post

40Hz - excellent that you help to up the socket to metal type, thanks! For my power supply the fuse is also where the IEC plug locate (the flap just under the ICE hole). 

 

Lastly, initial impression seems that rolling rectifier tube does seems to have some effect, will update more later; I am getting good result with Sovtek GZ34 but even better with good tube.

 

Well, I imagine there may be some connection, but as I say, I don't want to claim credit - Craig does seem to be open to suggestions across the board, and that has to be a good thing.

 

Let's try again with that pic, so you can see the connector from another angle.  Fingers crossed...

 

 

Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: High-end Audio Forum

Head-Fi's Best Sellers

Head-Fi.org › Forums › Summit-Fi (High-End Audio) › High-end Audio Forum › Eddie Current 2A3 - New updated version, new look with polished top