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Thread Tools |
5th June 2020, 07:33 PM
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#1 |
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Got Foam?
diyAudio Member
Join Date: Oct 2012
Location: Metro DC (Virginia)
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ACP+ Preamp/HPA for Yarra Preamp
Vunce and I have both built the verification boards for the Pass ACP+ preamp / headphone amplifier in Yarra daughterboard format. This format also is compatible with the M2X amplifier front end bolt holes. Requires +24v supply and can be used as a standalone preamp/HPA.
The design is basically a miniature Aleph based output stage with a Aleph J or J2 front end (?). It sounds super and is very powerful with deep bass authority. A very nice sounding preamp that has tons of headroom. You will enjoy the sound immensely. It is a mostly SMT layout in order to make it small enough to fit in the Yarra/M2X board format. However, the small tight layout contributes to an exceptionally low noise and great sounding design. Thanks to Mr Pass for giving us the go-ahead to make this design for the Yarra/M2X. Thank you to JPS64 for another superb layout. Please add your name, number of boards, and country to the interest list below if you would like to see a GB for this happen. Boards will be the usual price of $12 each and 1.6mm thick 1oz copper, ENIG finish. Green solder mask. GB Interest List: For example... JohnDoe / 2 boards / USA Edit Dec 24, 2020: BOM is here https://www.diyaudio.com/forums/atta...4&d=1608844039
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XRKaudio https://www.etsy.com/shop/XRKAudio Last edited by xrk971; 24th December 2020 at 09:08 PM. |
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8th June 2020, 03:29 AM
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#2 |
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diyAudio Member
Join Date: Feb 2012
Location: Alabama
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MShipmanPE/2 boards/ USA
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8th June 2020, 11:02 PM
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#4 | |
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Freedom or Death
diyAudio Member
Join Date: Sep 2019
Location: Illinois
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Quote:
Lol I was just going to say, if you solder those little bastards Ill take two lmao Also, are we going to see Chassis for Yarra? You have a new Yarra I think I read somewhere.
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Who's your Daddy? Pappa of course. 
Last edited by thompsontechs; 8th June 2020 at 11:05 PM. |
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8th June 2020, 11:08 PM
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#5 |
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Freedom or Death
diyAudio Member
Join Date: Sep 2019
Location: Illinois
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MShipmanPE/2 boards/ USA
thompsontechs/2 boards/USA God Bless it in these trying times!
__________________
Who's your Daddy? Pappa of course.
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8th June 2020, 11:37 PM
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#6 | |
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Got Foam?
diyAudio Member
Join Date: Oct 2012
Location: Metro DC (Virginia)
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Quote:
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XRKaudio https://www.etsy.com/shop/XRKAudio |
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9th June 2020, 12:06 AM
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#9 |
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diyAudio Member
Join Date: Sep 2010
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ACP Daughterboard
MShipmanPE/2 boards/ USA
Carl_Huff/ 2 boards/ USA mnichols30030/2 boards/USA |
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9th June 2020, 12:36 AM
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#10 |
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Freedom or Death
diyAudio Member
Join Date: Sep 2019
Location: Illinois
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Thanks for deleting GBA, nice touch, what was it about God Bless America was offensive? You didn't type it, but thought you should sensor?
Cancel mine X I know it wasn't you, but this crap just chaps my ***. JT
__________________
Who's your Daddy? Pappa of course.
Last edited by thompsontechs; 9th June 2020 at 12:44 AM. |
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