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Eddie Current Super 7 (Prototype) impressions and pics - Page 5

post #61 of 101

Seems like the transformers have a BIG influence when it comes to amps like these so going a bit <better> would be good news.

 

Very interested in this amp.  I can't wait to listen to one in person!

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post #62 of 101

I hope Craig will bring the Super 7 to RMAF along with BA 300B and 2A3

I also hope that Craig will bring his new Electra electrostatic amplifier to RMAF too

from what I heard Craig described, the sound was rich, full with depth and extension

like LCD2 revA but better.  It will be one of the most interesting product and cost

much less than the BHSE or Woo WES

post #63 of 101

Sweet, looks great.

post #64 of 101
Quote:
Originally Posted by kiertijai View Post

I hope Craig will bring the Super 7 to RMAF along with BA 300B and 2A3

I also hope that Craig will bring his new Electra electrostatic amplifier to RMAF too

from what I heard Craig described, the sound was rich, full with depth and extension

like LCD2 revA but better.  It will be one of the most interesting product and cost

much less than the BHSE or Woo WES

 

Craig did post on the website previously that the Super 7 will not be at RMAF, but you never know.

 

Has the intro price for the Super 7 been mentioned yet? A ballpark figure of $1500 for the first few units was mentioned, add in $100 for the improved transformers, so ~$1600?

post #65 of 101
Quote:
Originally Posted by xchagg View Post

 

Craig did post on the website previously that the Super 7 will not be at RMAF, but you never know.

 

Has the intro price for the Super 7 been mentioned yet? A ballpark figure of $1500 for the first few units was mentioned, add in $100 for the improved transformers, so ~$1600?



his site now say super 7 will be there

post #66 of 101

This is what Craig described about the electra standard version (new Electrostatic amplifier

which cost much less than the BHSE, WooWES)

We played the Electra most of yesterday. No problem with voltage swing,

1500 volts peak to peak, fully balanced input to output

The sound was full and rich, similar to the Audez LCD2 revA on the BA with

better treble extension. The Electra goes out to 80kHz so there is plenty of air

 

seems to be very interesting, can't miss experience for the Electra

 

I hope Craig will bring his BA 300B too,  he will probably use the GEC BL63 (the father

of all father of 6SN7's, Craig said that it is better than the Tungsol BGRP, ECC32 or

other high end 6SN7's)  and hope that his very rare NOS tube were there too i.e.

Marconi PX25 , PX4.  Wonder how the sound would be like.

 

There are a lot of interest on SR009 however IMO  the sound was too delicate for me

may be overbright at the edge,  more forwarding mid.  However I found that using BA

as tube preamplifier help the performance of SR009 better and it has rich, warm ,

full, very sweet flowing mid.   I only use cheap 6F8G such as National Union as the driver

the effect is much more better than using the SR009 with DAC 202 and Stax 727A modded

post #67 of 101
Cool, glad Craig got the transformers figured out. As of a month or two ago he was still looking. Can't wait to hear the sound difference.
post #68 of 101
Quote:
Originally Posted by kiertijai View Post

 

There are a lot of interest on SR009 however IMO  the sound was too delicate for me

may be overbright at the edge,  more forwarding mid.  However I found that using BA

as tube preamplifier help the performance of SR009 better and it has rich, warm ,

full, very sweet flowing mid.   I only use cheap 6F8G such as National Union as the driver

the effect is much more better than using the SR009 with DAC 202 and Stax 727A modded

 

This makes sense to me and I felt similarly about the 009 paired w/ a SS amp.  Not very exciting, very flat, dull and 2D though I consider the sig more neutral than bright.  Perhaps you are more used to the more romantic O2 sig?   I'm really curious to hear how much better the 009 can scale with tubes because as it stands the HD800 w/ a proper tube amp isn't doing any favors for the 009's extra $3K so far.  Talking mostly about resolving power specifically.
 

On topic, I've really missed the S7 and have been stocking up on tubes for an amp I don't have yet.  >.<

 


Edited by Anaxilus - 10/12/11 at 7:07pm
post #69 of 101
Quote:
Originally Posted by CEE TEE View Post

Seems like the transformers have a BIG influence when it comes to amps like these so going a bit <better> would be good news.

 

Very interested in this amp.  I can't wait to listen to one in person!


The circuit is most important, but when it comes to components, transformers are hugely important. This has been impressed on me by every graybeard electronics geek I've met. Craig knows what he's doing.

Glad to hear he's putting money towards what really counts for sound quality.
post #70 of 101

Perhaps you are more used to the more romantic O2 sig?  

      No , I still think the O2mkI is too dark for me.   In fact I like the LCD2 rev1 driven by fully balanced BA using Telefunken, SICTE Fivre, Tungsram.

The unique mid of LCD2 is the one I like but I don't like that small soundstage and rolled off treble but balanced BA with those tubes help those.  I

still think SR009 has a bright tone (I don't mean sibilance but it has bright edge, more forwarding mid, quicker pace than the HE90, SR Omega).  The

sound is also too delicate when driven by SS amplifier especially mine that is modded 727A that is good for O2 but not for SR009 so I used the BA preamplifier

with warm full sound tubes like the National Union, GEC B65 and the best of all is GEC BL63.  It really helps improve the sound of SR009  to be rich full smooth

sweet mid and to some extent the bigger  3D soundstage too.

 

I'm really curious to hear how much better the 009 can scale with tubes because as it stands the HD800 w/ a proper tube amp isn't doing any favors for the 009's extra $3K so far.

       Please see above.  For me HD800 is not as good as SR 009 with this setup except the soundstage ( but the imaging is not that good).  The sound of HD800 still thin

even I use gold clad Zeus cable and Apuresound cable, tube rolling helps some but not as dramatic as the SR009.  Again because the soundstage of HD800 is already quite large

so the balanced setup may not improve much.  I need to try the HD800 with the GEC 65 and GEC BL63 some day.   As I heard the HD800 will perform excellently with the Super7

especially with the transformer upgrade but I still concern that the super 7 may still have high treble cutoff.

post #71 of 101
Quote:
Originally Posted by Uncle Erik View Post


The circuit is most important, but when it comes to components, transformers are hugely important. This has been impressed on me by every graybeard electronics geek I've met. Craig knows what he's doing.
Glad to hear he's putting money towards what really counts for sound quality.


It's funny. When you open up his amps, you see expensive transformers, but no boutique caps, resistors, etc. Some of those poly caps look like the ones we can buy from Radioshack or Frys.

 


Edited by purrin - 10/13/11 at 9:40am
post #72 of 101

 

Quote:
Originally Posted by kiertijai View Post

I'm really curious to hear how much better the 009 can scale with tubes because as it stands the HD800 w/ a proper tube amp isn't doing any favors for the 009's extra $3K so far.

       Please see above.  For me HD800 is not as good as SR 009 with this setup except the soundstage ( but the imaging is not that good).  The sound of HD800 still thin

even I use gold clad Zeus cable and Apuresound cable, tube rolling helps some but not as dramatic as the SR009.  Again because the soundstage of HD800 is already quite large

so the balanced setup may not improve much.  I need to try the HD800 with the GEC 65 and GEC BL63 some day.   As I heard the HD800 will perform excellently with the Super7

especially with the transformer upgrade but I still concern that the super 7 may still have high treble cutoff.


I can't run PX4s with the HD800s on the BA. With HD800s, I'm currently running the solid plate EML 300Bs which provide a little more thickness. Also, our HD800s are modified to tone down the treble a measurable -3db.

 

Our initial impressions of the Super 7 prototype being warm and slightly rolled were incorrect. It turned out to be the source that sounded that way. When Anax had an opportunity to steal the prototype for a few weeks, we found the S7 to be neutral with good extension both ways. This also means some tube rolling (and perhaps mods) would be necessary to "tame" the HD800s.

post #73 of 101

 

I can't run PX4s with the HD800s on the BA. With HD800s, I'm currently running the solid plate EML 300Bs which provide a little more thickness. Also, our HD800s are modified to tone down the treble a measurable -3db.

 

Our initial impressions of the Super 7 prototype being warm and slightly rolled were incorrect. It turned out to be the source that sounded that way. When Anax had an opportunity to steal the prototype for a few weeks, we found the S7 to be neutral with good extension both ways. This also means some tube rolling (and perhaps mods) would be necessary to "tame" the HD800s.

Dear Purrin,   Good to hear that the source is the problem not the Super 7 amplifier.    What combination of tubes that you and Anaxillus  thought are the best for each type of music ?   or dynamic headphones i.e. LCD2, HD800
                     Is Super 7 speaker post powerful enough to drive HE6 and AKG K1000 : if it can what is the best combination of tubes?
I don't run PX4, AVVT32B, PSvane 300B, Svetlana 300B  after I tried WE 300B original.  At first I tried to keep the WE 300B for special occasion but I can't  so I just leave them there. I only try to save more money for other needs.
WE300B original hands down provides the best mid, the best soundstage. The bass extension and impact is just right for me.  When I first used them with LCD2 rev 1  and Telefunken 6sn7w (better than swedish standard)   I thought I had a new phone .
There is no more problems with soundstage, treble extension while bass detail, soundstage  is better with same  bass quantity, impact.   With the use of GEC BL63  the mid becomes fuller richer smoother,  better than I ever imagine 

 


Edited by kiertijai - 10/13/11 at 10:14am
post #74 of 101

Our approach was simple. Put in the best sounding (resolving) driver tube regardless of sound balance. "Hardware EQ" with different combos of output tubes. We found a couple of great ones at reasonable prices, but I don't want to post for fear of some dude in Taiwan buying everything up and reselling what used to go for $25 for $269. (I'm referring to the Tungol 68FGs which aren't cheap anymore.)

post #75 of 101
Quote:
Originally Posted by purrin View Post

I can't run PX4s with the HD800s on the BA. With HD800s, I'm currently running the solid plate EML 300Bs which provide a little more thickness. Also, our HD800s are modified to tone down the treble a measurable -3db.

 

Apologies for getting slightly off topic, but why can't you run PX4s on the BA with your HD800s?  Is it just too much for your tastes, or is there an electronics reason behind that?

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