DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532 - Page 249 - diyAudio
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Old 17th April 2013, 04:53 PM   #2481
hotiron is offline hotiron  Scotland
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NEW Hi end DAC 24 BIT 192K HZ AK4396 sc | eBay
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Old 17th April 2013, 05:33 PM   #2482
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Thanks.
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Old 18th April 2013, 01:01 AM   #2483
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Is there an option where more of the board is assembled?
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Old 25th April 2013, 03:40 PM   #2484
hotiron is offline hotiron  Scotland
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Yes he will build it for you. For a few extra dollars.
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Old 25th April 2013, 07:37 PM   #2485
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@ poimandres, just to let you know incase you missed it...
ClaveFremen has done a LOT with this board. upgrading the components. see his google docs, he has a full list of upgrade components and where to buy them from https://drive.google.com/?authuser=0#folders/0B-qKRBuaKtzYYWNkNzRmODktZTQyNS00YjA2LWIwNzItN2UzNzhj ODI5MWRm

also, if you do buy the unassembled board, the three main ic's and the three chips are pre-soldered, so the most tiny stuff is done. may want to double check that with the seller though. good luck
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Old 26th April 2013, 09:42 PM   #2486
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I bought my kit from zoe_tsang (as per ebay link from hotiron at #2481). The IC's came soldered in place, but not the LM117s, which would have been nice. I bet if you ask, the vendor will send you your kit with these pre-soldered as well as the IC's.

Based on earlier posts, it looks like both zoe_tsang and along1986090 have proven to be reputable ebay sellers of this kit. The PCB board should say "2496 mini" or "2496 mini ES" (I don't recall if there's a difference). The R-core transformer offered with the kit is preferred by Clave and others. It should be 30VA, and is typically marked “AC4.265.5387.”

I bought the whole kit, not just the PC board. Once I ordered all my parts, I realized that Clave's BOM replaces about 80% of what comes with the kit. No worries, I think it's simpler to do it this way. Still, you might save a few dollars by ordering just the PC Board and transformer from the ebay merchants, and the other parts separately.

In this thread, you'll see a fair bit of variation on the power supplies. The Silas Shunt is highly praised (I have to believe this is the gold stardard, yes?). Alternately, Clave has designed a shunt regulator that should work quite well. A few builders have chosen another variation, and have separate transformers for the digital and analogue circuits of the board. Try a few searches within this thread to learn more. Ah, variety!! All part of diy-ing !
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Old 27th April 2013, 01:21 AM   #2487
fidel is offline fidel  United States
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Ciao Comrades, I have read every word, and am waiting for a wee box from China.
I think I may have found a substitute for those hard to find (at least for me)
Evox-Rifa SMR 100nF 50V caps on Clave's bom. Kemet SMR film caps 0.1uF 50V 5% Mouser p/n

80-MMK5104J50J01TR18

Evox Rifa and Kemet are the same corporation I think, and the specs are the same (as far as I can tell)

Thank you all and Bravo Dario!

fidel

Last edited by fidel; 27th April 2013 at 01:50 AM. Reason: spelling
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Old 27th April 2013, 01:50 AM   #2488
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Quote:
Originally Posted by fidel View Post
I think I may have found a substitute for those hard to find (at least for me)
(...)
Evox Rifa and Kemet are the same corporation I think, and the specs are the same (as far as I can tell)
Sorry but SMR and MMK are different type caps, SMR have PPS dielectric while MMK have polyester.

PPS is a superior (and better sounding) dielectric than polyester.

You can find them from Mouser (80-SMR5104K100J03L4), I've updated the BOM on Google Drive.
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Old 27th April 2013, 02:05 AM   #2489
fidel is offline fidel  United States
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Shite, another $1.19 shot to hell
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Old 27th April 2013, 03:05 AM   #2490
fidel is offline fidel  United States
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Sorry all. I meant to order the SMR type but ordered the wrong p/n.
I really shouldn't make up orders at 3:00 AM.
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