Can any one help me locate a2 boards

SI · 14th February 2004, 07:47 PM

Hi, I am very new at this, Please bare with me. Here's a little bit about myself: I like to listen to good quality music. I was a big fan of vintage Threshold products(stasis), hence I'm a big fan of Mr. Pass and his works. I have Champagne taste in beer budget. So I recently deceided to build my own Pass clone. I want to get my feet wet with two A2's in one enclosure. I know this is a very big project, but I need to find out the full potential of my pride and joy old AR-9's. That what brings me to you guys feet. I need all the help I can get from the masters of the Audio Kingdom. First Question is can anybody help me aquiring a pair of Aleph 2 driver boards ? Secondly I'm using 9.8"H X 15"D X 1.3"T(thick) to mount 12 IRFP240, Is the heatsink big enough ? Thirdly I'm thinking about mounting two encased 1000VA toroids on the outside of the back panel and I was wondering if this is too close to the line in and speaker out since they are gonna be within 2-3 inches of the big toroids.
Please help.

Regards.
SAAD//

MikeW · 14th February 2004, 11:45 PM

There should be some boards around.
I think you would need at least 2 of those heatsinks per channel.

It is a good idea to keep the power supply as far away from the input as possible.

SI · 16th February 2004, 05:58 PM

Any body have any A2 boards for sell, Please let me know.

SI · 16th February 2004, 07:13 PM

What's the secondary voltage should be for a Aleph 2 tranny.

Coulomb · 16th February 2004, 08:05 PM

I have some spare Aelph 2 boards left over from DH's goup buy.

$10 US ea. including shipping to the US, do you want just the FEB's or do you want the FET boards as well? FET boards are extra $4 US ea. and you would need 2 minimum, probably four if you want to go to 12 devices per channel.

Regards

Anthony

MEGA-amp · 16th February 2004, 09:48 PM

Take a look here. Very high quality, reputable, easy transaction.

PCB DESIGN

It looks like a better deal above by Coulomb, but the site provides the info you are looking for.

SI · 17th February 2004, 08:10 AM

You guys were great help.

Thanks.

SI · 17th February 2004, 05:40 PM

Hi The Masters of the Audio Kingdom,

I was wondering: How the secondary voltage of the tranny effects the output stability of Aleph 2. In other words: If I drive a 4 ohm load does the rail voltage has to be lower ?

Zapped · 17th February 2004, 06:36 PM

Hi Coulomb: I would also be interested in some boards. If you have four of the output boards, and two of the main boards left, I will be glad to purchase them. Just let me know how to pay (does Paypal work for you?).

Thanks.

Larry Wright
Seattle area

Coulomb · 18th February 2004, 12:31 AM

Hello Larry, please see my email response.

Anthony

14th February 2004, 07:47 PM	#1
SI diyAudio Member Join Date: Feb 2004 Location: wisconsin	Can any one help me locate a2 boards Hi, I am very new at this, Please bare with me. Here's a little bit about myself: I like to listen to good quality music. I was a big fan of vintage Threshold products(stasis), hence I'm a big fan of Mr. Pass and his works. I have Champagne taste in beer budget. So I recently deceided to build my own Pass clone. I want to get my feet wet with two A2's in one enclosure. I know this is a very big project, but I need to find out the full potential of my pride and joy old AR-9's. That what brings me to you guys feet. I need all the help I can get from the masters of the Audio Kingdom. First Question is can anybody help me aquiring a pair of Aleph 2 driver boards ? Secondly I'm using 9.8"H X 15"D X 1.3"T(thick) to mount 12 IRFP240, Is the heatsink big enough ? Thirdly I'm thinking about mounting two encased 1000VA toroids on the outside of the back panel and I was wondering if this is too close to the line in and speaker out since they are gonna be within 2-3 inches of the big toroids. Please help. Regards. SAAD//

14th February 2004, 11:45 PM	#2
MikeW diyAudio Member Join Date: Sep 2002 Location: North of Boston	more sinks There should be some boards around. I think you would need at least 2 of those heatsinks per channel. It is a good idea to keep the power supply as far away from the input as possible. __________________ MikeW

17th February 2004, 05:40 PM	#8
SI diyAudio Member Join Date: Feb 2004 Location: wisconsin	tranny selection Hi The Masters of the Audio Kingdom, I was wondering: How the secondary voltage of the tranny effects the output stability of Aleph 2. In other words: If I drive a 4 ohm load does the rail voltage has to be lower ?

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16th February 2004, 05:58 PM	#3
SI diyAudio Member Join Date: Feb 2004 Location: wisconsin	Any body have any A2 boards for sell, Please let me know.

16th February 2004, 07:13 PM	#4
SI diyAudio Member Join Date: Feb 2004 Location: wisconsin	What's the secondary voltage should be for a Aleph 2 tranny.

16th February 2004, 08:05 PM	#5
Coulomb diyAudio Member Join Date: Jul 2002 Location: Ancaster, Ontario	I have some spare Aelph 2 boards left over from DH's goup buy. $10 US ea. including shipping to the US, do you want just the FEB's or do you want the FET boards as well? FET boards are extra $4 US ea. and you would need 2 minimum, probably four if you want to go to 12 devices per channel. Regards Anthony

16th February 2004, 09:48 PM	#6
MEGA-amp diyAudio Member Join Date: Oct 2003 Location: Newington, CT	Take a look here. Very high quality, reputable, easy transaction. PCB DESIGN It looks like a better deal above by Coulomb, but the site provides the info you are looking for.

17th February 2004, 08:10 AM	#7
SI diyAudio Member Join Date: Feb 2004 Location: wisconsin	You guys were great help. Thanks.

17th February 2004, 06:36 PM	#9
Zapped diyAudio Member Join Date: Jul 2002 Location: Seattle	Hi Coulomb: I would also be interested in some boards. If you have four of the output boards, and two of the main boards left, I will be glad to purchase them. Just let me know how to pay (does Paypal work for you?). Thanks. Larry Wright Seattle area

18th February 2004, 12:31 AM	#10
Coulomb diyAudio Member Join Date: Jul 2002 Location: Ancaster, Ontario	Hello Larry, please see my email response. Anthony

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