New Member_Aleph Project

thomasfw · 21st January 2005, 05:53 PM

Dear All,
I am a new comer from Hong Kong.
I would like to build a power amp greater than 40W_Class A.
I have go to the passdiy.com,but still have questions :-

1) What is the latest ver of Aleph, where I can found the
Schematic, PCB layout and ref. documents, etc., ?

2) Which one is most fit what I want ?

3) How can I study in very beginning (full history of Pass Project) ?

4) In Hong Kong most common PowerMosFet is K135, is it fit for Aleph projects ?

5) Also it is also hard to find "Big Heat Sink". any good channels to buy it ?

6) which serious is design with "SuperSymmetry" ?
7) Any suggestion in "Kit" supplier ?

Best Regards !

Thomas

Netlist · 21st January 2005, 06:13 PM

Hi Thomas and welcome.

1) All Aleph schematics can be found at PassLabs.com.
2) According to Nelson Aleph2 is the 'best'.
3) Passdiy.com and DiyAudio.com
4) Don't think so but can't tell you why.
5) Ebay?
6) AlephX, look at the wiki. There's a mindblowing calculation speadsheet too.
7) We don't do kits but look around, you'll find pcb's.
Or you could go P2P as a few of us did.

Good luck

/Hugo

Nelson Pass · 21st January 2005, 06:14 PM

The most recent version of the Aleph is the Aleph 30 and Aleph
60. The owners manuals also contain the schematics and
can be found online at www.passlabs.com. There are numerous
PC boards and artwork available - right on this forum, I
believe.

I will let someone else address your other questions, but
the K135 is, I believe, a lateral Mosfet, and will give somewhat
different performance than the vertical IR type Mosfets used in
the original Alephs. It can be used with some adaptation.

Duck-Twacy · 21st January 2005, 08:06 PM

The Aleph2 of course is the king of the Alephs. The Aleph5 might be a bit closer to you wishes (a good 60 watts class A) and a lot cheaper to built

A good source for ready made PCBs is Kristijan http://web.vip.hr/pcb-design.vip/

Probably some of the fokes here will be glad to share a pcb design with you, I believe somebody is working on a new generic Aleph PCB design right now.

moe29 · 21st January 2005, 09:11 PM

This thread has PCB artwork and some good discussion on the
Aleph 2, and it can be scaled to any Aleph you wish.

Aleph Project

Clarkcr · 22nd January 2005, 03:10 AM

Why isn't the Aleph 1.2 the king? If the Aleph 1.2 is 6 foot tall and wearing a crown of gold and diamonds, and the Aleph 2 (or the Aleph 5 for that matter) is 5'8" and wearing a crown of gold and emeralds.....seems like a no brainer....

Anyway, Thomas, I got a great deal on extrusions from M&M metals in Irving, TX. Of course I drove over there to pick them up, but all in all they were very very reasonable. I bought 12 feet of extrusions for my Aleph for about $320. GEt in contact with Bob Hardin www.mmmetals.com....972 438-1247.

Good luck!!!!

Chris

thomasfw · 22nd January 2005, 07:07 AM

Dear All,
Thank You For The Great and Fast Response !
Actuclly I own a Marantz 9 and 300B power Amo (DIY)
I want to build two "Solid State" Amp close or even better than
them ! Because it is very hard to find good "Tubes" !!!!
I love B & W 802 speaker very much !
As the above reasons, which two models should I choose ????
I got a lots of K135, K405 should I still use them, or buy new parts for better "Sound Result" !!!

Please advice !!!

Thomas

Duck-Twacy · 22nd January 2005, 02:49 PM

Quote:

Originally posted by Clarkcr
Why isn't the Aleph 1.2 the king?
..
Good luck!!!!

Chris

Nooo, thats the emperor

Mark A. Gulbrandsen · 22nd January 2005, 06:06 PM

"Why isn't the Aleph 1.2 the king?"

The high end is a bit more rolled off on the 1.2. It is more powerful but not as neutral as the 2 is. IMHO the original Aleph 3 is still the king of them all if you are not taking power into acount. It has soundstaging and imaging that put to shame the finest amps out there. It is one amazing amp... recently built one for a friend of mine.

But anyway... I really love my Aleph 2s!

Yes, M&M Metals is THE place to go in the States for good prices and nice to deal with people. Wakefield and Thermolloy are not interested in any small orders....

Mark

Nelson Pass · 23rd January 2005, 01:42 AM

When Goldilocks tried the three bears' porridge, chairs, and
beds, she always found one that was just right. for many people,
including me, that was the Aleph 2.

Truly the Aleph 2 is not best for me at the moment, but then
I am running 5 and 10 watt amps currently, and the Aleph 2
is just too big.

If you are a Pappa bear, you want a 1.2. If you are Momma
bear, a 2 is just great. If you are a baby bear, an Aleph 3
fits the bill.

If you listen through a magnifying glass, an F1 is just swell.

If you are King Kong, I sell a nice X1000 you need to consider.

/pass/: Loves Bebel Gilberto and JLH amps. Don't tell Carlos
the Destroyer X.

21st January 2005, 05:53 PM	#1
thomasfw diyAudio Member Join Date: Jan 2005 Location: Hong Kong	New Member_Aleph Project Dear All, I am a new comer from Hong Kong. I would like to build a power amp greater than 40W_Class A. I have go to the passdiy.com,but still have questions :- 1) What is the latest ver of Aleph, where I can found the Schematic, PCB layout and ref. documents, etc., ? 2) Which one is most fit what I want ? 3) How can I study in very beginning (full history of Pass Project) ? 4) In Hong Kong most common PowerMosFet is K135, is it fit for Aleph projects ? 5) Also it is also hard to find "Big Heat Sink". any good channels to buy it ? 6) which serious is design with "SuperSymmetry" ? 7) Any suggestion in "Kit" supplier ? Best Regards ! Thomas

21st January 2005, 08:06 PM	#4
Duck-Twacy diyAudio Member Join Date: Oct 2002 Location: Holland, The Hague	The Aleph2 of course is the king of the Alephs. The Aleph5 might be a bit closer to you wishes (a good 60 watts class A) and a lot cheaper to built A good source for ready made PCBs is Kristijan http://web.vip.hr/pcb-design.vip/ Probably some of the fokes here will be glad to share a pcb design with you, I believe somebody is working on a new generic Aleph PCB design right now. __________________ Is that all there is?

22nd January 2005, 07:07 AM	#7
thomasfw diyAudio Member Join Date: Jan 2005 Location: Hong Kong	Matching with B&W 802 Dear All, Thank You For The Great and Fast Response ! Actuclly I own a Marantz 9 and 300B power Amo (DIY) I want to build two "Solid State" Amp close or even better than them ! Because it is very hard to find good "Tubes" !!!! I love B & W 802 speaker very much ! As the above reasons, which two models should I choose ???? I got a lots of K135, K405 should I still use them, or buy new parts for better "Sound Result" !!! Please advice !!! Thomas

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21st January 2005, 06:13 PM	#2
Netlist diyAudio Moderator Join Date: Jan 2003	Hi Thomas and welcome. 1) All Aleph schematics can be found at PassLabs.com. 2) According to Nelson Aleph2 is the 'best'. 3) Passdiy.com and DiyAudio.com 4) Don't think so but can't tell you why. 5) Ebay? 6) AlephX, look at the wiki. There's a mindblowing calculation speadsheet too. 7) We don't do kits but look around, you'll find pcb's. Or you could go P2P as a few of us did. Good luck /Hugo

21st January 2005, 06:14 PM	#3
Nelson Pass The one and only Join Date: Mar 2001	The most recent version of the Aleph is the Aleph 30 and Aleph 60. The owners manuals also contain the schematics and can be found online at www.passlabs.com. There are numerous PC boards and artwork available - right on this forum, I believe. I will let someone else address your other questions, but the K135 is, I believe, a lateral Mosfet, and will give somewhat different performance than the vertical IR type Mosfets used in the original Alephs. It can be used with some adaptation.

21st January 2005, 09:11 PM	#5
moe29 diyAudio Member Join Date: Dec 2002 Location: Florida	This thread has PCB artwork and some good discussion on the Aleph 2, and it can be scaled to any Aleph you wish. Aleph Project

22nd January 2005, 03:10 AM	#6
Clarkcr diyAudio Member Join Date: Jun 2004 Location: Houston, TX	Why isn't the Aleph 1.2 the king? If the Aleph 1.2 is 6 foot tall and wearing a crown of gold and diamonds, and the Aleph 2 (or the Aleph 5 for that matter) is 5'8" and wearing a crown of gold and emeralds.....seems like a no brainer.... Anyway, Thomas, I got a great deal on extrusions from M&M metals in Irving, TX. Of course I drove over there to pick them up, but all in all they were very very reasonable. I bought 12 feet of extrusions for my Aleph for about $320. GEt in contact with Bob Hardin www.mmmetals.com....972 438-1247. Good luck!!!! Chris

22nd January 2005, 06:06 PM	#9
Mark A. Gulbrandsen diyAudio Member Join Date: Sep 2001 Location: Salt Lake City	"Why isn't the Aleph 1.2 the king?" The high end is a bit more rolled off on the 1.2. It is more powerful but not as neutral as the 2 is. IMHO the original Aleph 3 is still the king of them all if you are not taking power into acount. It has soundstaging and imaging that put to shame the finest amps out there. It is one amazing amp... recently built one for a friend of mine. But anyway... I really love my Aleph 2s! Yes, M&M Metals is THE place to go in the States for good prices and nice to deal with people. Wakefield and Thermolloy are not interested in any small orders.... Mark

23rd January 2005, 01:42 AM	#10
Nelson Pass The one and only Join Date: Mar 2001	When Goldilocks tried the three bears' porridge, chairs, and beds, she always found one that was just right. for many people, including me, that was the Aleph 2. Truly the Aleph 2 is not best for me at the moment, but then I am running 5 and 10 watt amps currently, and the Aleph 2 is just too big. If you are a Pappa bear, you want a 1.2. If you are Momma bear, a 2 is just great. If you are a baby bear, an Aleph 3 fits the bill. If you listen through a magnifying glass, an F1 is just swell. If you are King Kong, I sell a nice X1000 you need to consider. /pass/: Loves Bebel Gilberto and JLH amps. Don't tell Carlos the Destroyer X.

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