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Pass ACA Builds
https://www.canuckaudiomart.com/forum/viewtopic.php?f=21&t=39648
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Author:  Frank Wang [ Fri Jun 10, 2016 11:53 am ]
Post subject:  Re: finger nail oil...

ripblade wrote:
You mean nail polish? Yeah it's probably why so many women are nutso lol.

Have you tried Locktight instead?


Yeah, I know HD has locktite something...she bought some nail polish thing and does not like the colors and dumped to me, and I figured to make use of it. Works fine, but really smell terrible.

I strictly prohibit her from using nail polish on my daughter...from the smell I can tell is poisonous, and kids tend to find a way swallow anything...

Author:  Frank Wang [ Sun Nov 19, 2017 11:20 am ]
Post subject:  ACA 1.1, what's the deal?

BAF2017, some friends were expecting sort of ACA "2.0"...turned out to be ACA 1.1, some are "disappointed", some are "confused"...so, what's the deal with ACA 1.0 to ACA 1.1?

What have been changed?
-Circuit-wise: Comparing with ACA 1.0 (with R15 - 2.21K which added later on), there is only ONE change to the circuit, i.e. 68.1K (R12) resistor changed to 39.2K. That's it.
-Above change is tiny, the circuit looks almost the same, what about PCB layout...well, to allow "shorter" inner height chassis, 2 IRFP240 MOSFETs moved to sides, now it looks different....LOL

Simply put, if you already have an ACA with R15 patch, what you need to do is to parallel the 68.1K resistor with another resistor around 68.7K then you have upgraded to ACA 1.1.

Should I upgrade? ACA 1.1 has less output power, and higher current...well, I have attached a bigger picture below...lower noise, more damping factor, more flat curve and etc...

Now should see that ACA 1.1 is better specs-wise, but will ACA 1.1 sound better? I don't know yet...but it will be fun to play. Enjoy!

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Author:  Frank Wang [ Wed May 09, 2018 5:00 am ]
Post subject:  Re: Pass ACA Builds

Building an ACA for my friend...will pass to him this weekend on our trip to Ottawa...
Gosh...hope I can finish it in time...

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Author:  petersch [ Wed May 09, 2018 5:14 am ]
Post subject:  Re: Pass ACA Builds

I just noticed they are now up to ACA 1.6 and they are now taking orders for July delivery. Looks like a spectacular piece of kit!

Author:  Frank Wang [ Wed May 09, 2018 5:43 am ]
Post subject:  Re: Pass ACA Builds

petersch wrote:
I just noticed they are now up to ACA 1.6 and they are now taking orders for July delivery. Looks like a spectacular piece of kit!


It's diyaudio ACA kit 1.6...not ACA 1.6 (ACA is Pass's design)...there is a difference;-)
------

Let's play some Aluminum Oxide Ceramic (1mm thick)...a bit overkill here...chilly

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Author:  Frank Wang [ Fri May 11, 2018 4:39 am ]
Post subject:  Re: Pass ACA Builds

"Painful" metal works...two of the holes are not round holes...

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File comment: Nail polish...
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Author:  Frank Wang [ Sat May 19, 2018 3:47 am ]
Post subject:  Re: Pass ACA Builds

Done and delivered last weekend... :)

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Author:  palladio [ Sat May 19, 2018 4:02 am ]
Post subject:  Re: Pass ACA Builds

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Setup and running....alongside "Frank Wang" ACA monoblocks and crossover. Thanks again Yaping.

Author:  Demerara [ Sat May 19, 2018 4:51 am ]
Post subject:  Re: Pass ACA Builds

palladio wrote:
Attachment:
1-P1020009.JPG



Setup and running....alongside "Frank Wang" ACA monoblocks and crossover. Thanks again Yaping.


Hi palladio,

Are you using a stereo version plus two monos into the same speakers, via the external crossover? What speakers are you using?

Author:  palladio [ Sat May 19, 2018 5:28 am ]
Post subject:  Re: Pass ACA Builds

I am running DIY Open Baffle. Visaton B200 and Eminence Alpha 15. Crossover is at 250HZ. Tweeter is Vifa D27TG-35 with back removed, 1uF cap. The monoblocks run the top end and the second Amp runs the woofers. I am very pleased with this setup. Note: Listening is 90% classical and I prefer moderate sound levels. Frank does beautiful and meticulous work, I build his speaker boxes and he builds my electronics. Love being part of the CAM community!


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Author:  ripblade [ Sat May 19, 2018 7:03 am ]
Post subject:  Re: Pass ACA Builds

palladio wrote:
Attachment:
1-P1020009.JPG



Setup and running....alongside "Frank Wang" ACA monoblocks and crossover. Thanks again Yaping.
Nice setup!

What's the crossover?

Author:  Uunderhill [ Sat May 19, 2018 7:38 am ]
Post subject:  Re: Pass ACA Builds

Frank Wang wrote:
"Painful" metal works...two of the holes are not round holes...


Frank, your metal work skills are great, this would help.

https://www.princessauto.com/en/detail/ ... -p2910254e

Image

Author:  BinkyTheCat [ Sat May 19, 2018 7:43 am ]
Post subject:  Re: Pass ACA Builds

yup, or if yer already loading the chuck on the press consider step bits

however you do get what you pay for... link just an example.


https://images-na.ssl-images-amazon.com ... L1001_.jpg

Author:  Frank Wang [ Sat May 19, 2018 5:31 pm ]
Post subject:  Re: Pass ACA Builds

Thanks Gents...those 2 holes for DC inlet are not round holes, have to use a file

-- 20 May 2018 01:43 --

palladio wrote:
I am running DIY Open Baffle. Visaton B200 and Eminence Alpha 15. Crossover is at 250HZ. Tweeter is Vifa D27TG-35 with back removed, 1uF cap. The monoblocks run the top end and the second Amp runs the woofers. I am very pleased with this setup. Note: Listening is 90% classical and I prefer moderate sound levels. Frank does beautiful and meticulous work, I build his speaker boxes and he builds my electronics. Love being part of the CAM community!


Attachment:
1-P1020010.JPG


Attachment:
2-P1020011.JPG


Hear, hear...the most "fun" part in CAM community is getting to know friends like you...and the pleasure is all mine.

Author:  ripblade [ Tue Jul 24, 2018 3:14 pm ]
Post subject:  Re: Pass ACA Builds

Got an email from diyAudio this morning informing me of a shipment, complete with tracking #. Turned out to be for the chassis that arrived 3 weeks ago. :lol:

Anybody get anything else? Like the boards, parts etc? Something that looks like an amp lol?

The time is approaching.... 8)

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