Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Stacker II - the next generation Hybrid
New Posts  All Forums:Forum Nav:

Stacker II - the next generation Hybrid

post #1 of 84
4/19/08 at 11:20pm
Thread Starter 
I have been waiting for this day for quite some time.

Runeight has been hard at work these past few months, throwing out many concepts which have been prototyped and tested. Some worked, some had a few teething problems but all of this has culminated in an extraordinary hybrid amp which achieve a few goals.

1. High end audio ; nope make that no.2
1. DIY
3. A tube rollers dream - octal and noval , 6.3V or 12.6V
4. Modular to keep future options open
5. I could keep listing but why not check out the Intro post at HW

If this doesn't get your juices flowing, you must be a hardcore SS servant.

..dB

picture of my stacker
Reply
post #2 of 84
4/19/08 at 11:33pm
Nice... I'll have to keep an eye on this!
Reply
post #3 of 84
4/19/08 at 11:33pm
Very interesting stuff...thanks for the heads-up, dBel!
Reply
post #4 of 84
4/19/08 at 11:40pm
Thread Starter 
these are exciting times - an awful lot of thought has gone into this to make it a first rate amp which should have wide appeal.

It is not for noobs however , the voltages need due care but the design itself has been well worked out to make it safe for most..dB
Reply
post #5 of 84
4/20/08 at 12:17am
Hopefully my funds will have accumulated again by the time this is ready for release
Reply
post #6 of 84
4/20/08 at 12:45am
Wow! We've had some nice new designs roll out lately. I will definitely watch this thread develop and might end up with another project. I could use a high-end hybrid on the amp stack.
Reply
post #7 of 84
4/20/08 at 12:59am
should the cap be directly on the plate of the input tube like that? i have never seen that before.

it looks like it will be a sweeeeet amp.
Reply
post #8 of 84
4/20/08 at 1:12am
Thread Starter 
Quote:
Originally Posted by fierce_freak View Post
Hopefully my funds will have accumulated again by the time this is ready for release
Basic component cost is not unreasonably high , a rough estimate is around $170, which includes transformer/s but not boards. I am sure someone will want to add boutique caps .

Quote:
Originally Posted by nikongod View Post
should the cap be directly on the plate of the input tube like that? i have never seen that before.

it looks like it will be a sweeeeet amp.
afraid you've lost me here? ..dB

aaaah - you've recalled the ptp thread - yep, but I guess you need to see the schematic to make sense of it. runeight will post full disclosure in the not too distant future
Reply
post #9 of 84
4/20/08 at 1:37am
Quote:
Originally Posted by dBel84 View Post
afraid you've lost me here? ..dB
on the schematic in the linked thread there is a 47uf cap BETWEEN the plate resistor for the input tube and the tube. shouldnt it be before the resistor?

feel free to shoot me down if im wrong, but i think it may be a drawing error.
Reply
post #10 of 84
4/20/08 at 1:58am
Quote:
Originally Posted by dBel84 View Post
Basic component cost is not unreasonably high , a rough estimate is around $170, which includes transformer/s but not boards. I am sure someone will want to add boutique caps .
...and I'm the sucker to do it ;D I almost always end up spending more than the average, but I'm putting this down as the next project

Is the name very definite? When I first saw the thread title I was thinking what does a computer case or weight-loss/energy pills have to do with amps...haha ;D
Reply
post #11 of 84
4/20/08 at 7:25am
Great, just what I need. Another amp project I think my wallet has gone numb and doesn't feel the pain anymore.
Reply
post #12 of 84
4/20/08 at 7:49am
Quote:
Originally Posted by dBel84 View Post
I have been waiting for this day for quite some time.

Runeight has been hard at work these past few months, throwing out many concepts which have been prototyped and tested. Some worked, some had a few teething problems but all of this has culminated in an extraordinary hybrid amp which achieve a few goals.

1. High end audio ; nope make that no.2
1. DIY
3. A tube rollers dream - octal and noval , 6.3V or 12.6V
4. Modular to keep future options open
5. I could keep listing but why not check out the Intro post at HW

If this doesn't get your juices flowing, you must be a hardcore SS servant.

..dB

picture of my stacker
Yes, a no-nonsense design with the ability to roll many "audio tubes" into this amp in the input/tube stage, plus... the well performing PPA-like buffer, at a very reasonable cost will sure make this amp a dream for hardcore hybrid amp lover/DIY-er.
Reply
post #13 of 84
4/20/08 at 11:40am
Thread Starter 
Quote:
Originally Posted by nikongod View Post
on the schematic in the linked thread there is a 47uf cap BETWEEN the plate resistor for the input tube and the tube. shouldnt it be before the resistor?
I am not very familiar with this amp other than knowing mains built it and it is said to sound fantastic. I think the cap placement has to do with the fact that the sooper has a hollow state psu with both tube rectification and regulation. Normally the RCR networks are to smooth out the ripple which is not required here. Perhaps runeight will enlighten and educate..dB
Reply
post #14 of 84
4/20/08 at 9:34pm
Being a history buff, would someone shoot me an email about the 'theft' of prior runeight designs? Knowing it would not live to see the light of day in open forums, I am curious (just for my own personal edification) to know the circumstances of that, causing a lack of open analysis and debate.

Edit: Thanks for the replies - duly noted, with no surprises.
Reply
post #15 of 84
4/20/08 at 11:11pm
Sorry for back to back, but a wildly different tangent - quality compared to the MillettMax? More voltage swing? Best tube compliments (in your humble opinions) to date?

Oh, and, of course, I would want to build balanced, so form factor for casing, including PSU?

Yes, I know - too many questions.
Reply
New Posts  All Forums:Forum Nav:
  Return Home
Head-Fi.org › Forums › Misc.-Category Forums › DIY (Do-It-Yourself) Discussions › Stacker II - the next generation Hybrid