GC SuperSymmetry

[jh6you]

No. Maybe. Yes, it would be better to keep R1 and R2 as the original and change only R15 down to 220 ohms.

???

Regards

 

[jh6you]

Preliminary GCSS

Here is my preliminary GCSS.

Differences from the post #240 of metalman is as follows:

- Rail voltages: +/-15.5V (vs. +/- 29.5V)
- R15: 220 ohms (vs. 1K)
- Q1,2,3: KSP42 (vs. ZTX450)
- R15: 10 ohms (vs. 5.1)
- C4 and C5: 0.22uF (vs. 0.1uF)

All others the same.

The problem I had was due to my wrong reading of one resistor value. I read 5WR1J as 5W10ohms, instead of 5W0.1ohms, and applied them for R15 and R16. Eeeeeeeng.......

I have used electrolytic caps for C1 and C2. Nevertheless, the first impression of the sound is very good. Comparing with my Monolithic SS, GCSS has higher gain and has better upper frequency sound in vivacity. In other areas, sound similar.

I would like to have certain length of time for further listening test and will see the result.

Regards

 

[jh6you]

I will listen to these for a while.

Regards

 

[mikelm]

Hey Nelson that pic two posts up looks like the pic you published of your class A design of many moons ago - you know, the one with the surplus heatsinks and fans...🙂

 

[metalman]

Originally posted by jh6you
Comparing with my Monolithic SS, GCSS has higher gain and has better upper frequency sound in vivacity. In other areas, sound similar.

HOORAY! I am so glad to hear of your success getting the GCSS functionaing. I have really been looking forward to a comparison of it vs. your Monolithic SuSy, but I am also glad to hear you will be taking your time to do so. I found it takes about a week of playing for the GCSS sound to settle in.

I also want to compliment you on your wiriing. I see we both belong to the spaghetti circuit layout club.

Lastly, nice choices in music, and a good variety as well.

Cheers, Terry.

 

[metalman]

Nelson,

BrianGT and I have both been receiving a number of e-mails inquiring if we will be making pcb's available for my version of the GCSS, and we are interested doing up a layout and arranging a group purchase.

Can we have your blessing/permission to move forward with this?

Cheers, Terry

 

[BrianDonegan]

Please?

 

[planet10]

inquiring if we will be making pcb's available for my version of the GCSS, and we are interested doing up a layout and arranging a group purchase.

🙂

I've been patiently waiting for this... the GC with the unique Pass twist that makes it really special.

dave

 

[planet10]

Here is my preliminary GCSS.

That maze is truly an amazing work of air dielectric construction. I am humbled....

dave

 

[steenoe]

That maze is truly an amazing work

Oh, "The Amazing Maze" Didn't I hear that song somewhere😀

Steen🙂

 

[planet10]

"The Amazing Maze"

It was actually a game that shipped with the Mac128 & 512

dave

 

[steenoe]

It was actually a game that shipped with the Mac128 & 512

Thanks for enlightening on that, for a moment I was sure it was a tune😀 Never had a Mac, so that explains....

Steen😎

 

[Nelson Pass]

BrianGT and I have both been receiving a number of e-mails inquiring if we will be making pcb's available for my version of the GCSS, and we are interested doing up a layout and arranging a group purchase.

Can we have your blessing/permission to move forward with this?

Of course. Anything to move chips off the factory app notes.

😎

 

[BrianGT]

Of course. Anything to move chips off the factory app notes.

😎

Alright 🙂 I will see what Terry and I can come up with once I get the mini Aleph boards out of the way. Thanks again.

--
Brian

 

[Russ White]

Woooot!!!

Awesome!!! Thanks Nelson!!

 

[metalman]

Originally posted by Planet10
I've been patiently waiting for this... the GC with the unique Pass twist that makes it really special.

Dave, if you are ever across to my side of the water, I'd be more than happy to give you an audition of my GCSS driven by my CC-CCS-X-BZLS preamp. I'll trade the audition for a discussion on speaker building with full-range drivers.

Cheers, Terry

 

[jh6you]

Nelson Pass, … amazing... I am once again impressed that your brain itself is a real class A electronic circuit. It is not strange that your XA-100 is selected by Japanese audio critics as number one in its price range. I am really glad to see that XA-100 has broken the strong brick wall formed by other high-end products in a conservative high-end audio market. Best wishes for your continuous success. 😎

Guys, I like the spaghetti wiring. By doing so, I could arrange the wires just as I do it myself. The spaghetti wired construction has good flexibility and strength. If there is an earth quake, the structure is flexible (floated from the vibration noise 😉) and, at the same time, it has good strength to maintain the distances between wires. These are verified by my structural strength analysis. 😉 In addition, when parasitic insects enter into it, the electrical wire net will be a Kill Bill.

As built in this way, GCSS shows no trouble. The offset is very low, with no effort of matching components at all. When there is no signal, the speakers are dead quite.

As built in this way, the transformer is of 400VA (12V-0V, 12V-0V). The PSU caps are of two 22,000uF.

Regards

 

[planet10]

if you are ever across to my side of the water, I'd be more than happy to give you an audition of my GCSS driven by my CC-CCS-X-BZLS preamp. I'll trade the audition for a discussion on speaker building with full-range drivers.

Looks like i'll have to make a weekend to come over... between you, Cal, and a few others i could have a jam-packed weekend... usually a tip to Vancouver is a continuous dash...

dave

 

[jh6you]

Filomena Moretti
J.S. Bach
Partita in e major for lute BWV 1006a

GCSS/MSS(paralleled): GCSS guitar seems to have the strings slightly over tightened with tension force than MSS guitar.

I bought this live CD last week, and I love her play.
Filomena Moretti plays Bach passionately.
If you like classic guitar, save money and buy this.

Regards

 

[stappvargen]

jh6you wrote:

...Filomena Moretti...

Can you suggest a net shop which sells her album?

Thanks!
/Niclas