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Chinese AK4497 DAC dual-chip decoder board
Chinese AK4497 DAC dual-chip decoder board
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Old 9th April 2020, 02:27 PM   #121
Thmartin is offline Thmartin  France
diyAudio Member
 
Join Date: Aug 2004
Location: Paris
Hi,

Board : €78
AK4497EQ chips : €33,44 each (price has increased a lot since I purchased them 3 months ago)
XMOS U208 : €27,64
Chassis : €37,30
2x9V Talema transformer : €15,25
2x15V Talema transformer : €15,40

Displays are widely available in many colours, for instance here.

Some prices may have changed since, but total cost is approximately €240, still cheap for such a nice DAC.

Quote:
why build a DIY DAC when companies like TOPPING offer great products for quite reasonable price
Because I like building things

Which TOPPING DAC are you mentioning ?

T.

Last edited by Thmartin; 9th April 2020 at 02:32 PM.
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Old 9th April 2020, 03:27 PM   #122
Azzuro is offline Azzuro
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Join Date: Jul 2018
Hello thmarting,
Do you have removed red wima caps?

I soldered in // 100uf caps, and bass was more clear, but i have in stock nichicon muse caps and would like to know if better to completely this 1uf caps by 100uf caps instead.
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Old 9th April 2020, 04:52 PM   #123
nickytheshaft is offline nickytheshaft  France
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Join Date: Apr 2019
Location: lyon
ok 240 is in fact a good price if the DAC works great. I thought it would be way more expensive.
I was thining about the topping D70 but it is more 470.

I guess the worst part is soldering the chips right?

thanks for the answer
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Old 9th April 2020, 05:16 PM   #124
Thmartin is offline Thmartin  France
diyAudio Member
 
Join Date: Aug 2004
Location: Paris
Quote:
Originally Posted by Azzuro View Post
Hello thmarting,
Do you have removed red wima caps?

I soldered in // 100uf caps, and bass was more clear, but i have in stock nichicon muse caps and would like to know if better to completely this 1uf caps by 100uf caps instead.
Hey Azzuro,
Nope, I haven't yet. I usually prefer to get my ears used to a setting before implementing a modification, it's easier for me to have an opinion. Haven't played yet with opamps for instance. But thanks for the hint, I'll try this.

T.
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Old 9th April 2020, 05:18 PM   #125
Thmartin is offline Thmartin  France
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Join Date: Aug 2004
Location: Paris
Quote:
Originally Posted by nickytheshaft View Post
I guess the worst part is soldering the chips right?
yeah, that was the fun part, but with a magnifier, soldering paste and an hot air soldering station it was not that difficult.

T.
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Old 9th April 2020, 05:26 PM   #126
nickytheshaft is offline nickytheshaft  France
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Join Date: Apr 2019
Location: lyon
Soldering past is the salvation...
I have to finish chasing a hum on my diy 300b valve amp then I may go with this double ak4497.
Do you have a reference dac you compare it too?
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Old 10th April 2020, 06:21 AM   #127
vacuphile is offline vacuphile  Netherlands
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Join Date: Apr 2011
Location: Seaside
Chinese AK4497 DAC dual-chip decoder board
Quote:
Originally Posted by Thmartin View Post
Hi,

Board : 78
AK4497EQ chips : 33,44 each (price has increased a lot since I purchased them 3 months ago)
XMOS U208 : 27,64
Chassis : 37,30
2x9V Talema transformer : 15,25
2x15V Talema transformer : 15,40

Displays are widely available in many colours, for instance here.

Some prices may have changed since, but total cost is approximately 240, still cheap for such a nice DAC.


Because I like building things

Which TOPPING DAC are you mentioning ?

T.
This board is ok, but some changes are required to make it great.

Chinese AK4497 DAC dual-chip decoder board
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Old 10th April 2020, 08:02 AM   #128
nickytheshaft is offline nickytheshaft  France
diyAudio Member
 
Join Date: Apr 2019
Location: lyon
Quote:
Originally Posted by vacuphile View Post
This board is ok, but some changes are required to make it great.

Chinese AK4497 DAC dual-chip decoder board
Yes I saw that you tweaked it.
I may give it a try, actually my only DAC is a smsl a8 running a ak4490. I sold (and regretted doing so) my topping D30. I may get another one. This being said, I may give it a try. For around 300 (ak4497 is more expensive) it may be a bargain and fun project
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Old 10th April 2020, 08:02 AM   #129
nickytheshaft is offline nickytheshaft  France
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Join Date: Apr 2019
Location: lyon
For the display, red is really cool
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