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Dual Mono DAC AK4490/AK4497
Dual Mono DAC AK4490/AK4497
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Old 10th June 2019, 11:33 PM   #411
Blade2019 is offline Blade2019
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I must say that I'm not satisfied with dual ak4497 I bought.Unfortunately, usb input does not work as it should. I've tried with xmos and amanero card as well and it does not work( I must emphasize that both of those cards work with other dacs). Only things that actually work are optical and coaxialy- digital input
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Old 11th June 2019, 03:55 AM   #412
ozcal is offline ozcal  Australia
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Quote:
Originally Posted by Bassivus View Post
I have tweaked this DAC AK4497 DAC DSD ??? ??384K DSD256 XMOS ????-???
Burson Op-amps in analog output, regs. etc. Now it is really good!
I am using some of his earlier boards in my dac and they appear to be very good. Also using Burson opamps.
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Old 11th June 2019, 09:25 AM   #413
Bassivus is offline Bassivus  Serbia
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Quote:
Originally Posted by ozcal View Post
I am using some of his earlier boards in my dac and they appear to be very good. Also using Burson opamps.
I went for finished dac simply because there was no DIY board with AK4497 chip from him available. I want also to change xtals in xmos for better. But it sound remarkable already. I also changed regs in digital part:
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Old 19th November 2019, 12:03 PM   #414
unixdeveloper is offline unixdeveloper  United States
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Hello, I am also having the same issue and USB doesn't work. Did you get any help from the seller? I assume the firmware is incorrect on the board or the design itself is buggy. The PCB inside is blue color.

If I get the interface diagrams, I can write my own software to control the DAC.

Regards,
Subbu

Quote:
Originally Posted by Blade2019 View Post
I must say that I'm not satisfied with dual ak4497 I bought.Unfortunately, usb input does not work as it should. I've tried with xmos and amanero card as well and it does not work( I must emphasize that both of those cards work with other dacs). Only things that actually work are optical and coaxialy- digital input
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Old 19th November 2019, 02:16 PM   #415
themystical is offline themystical  United Kingdom
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I believe that the AK4497 requires a soft reset upon energisation before it becomes active, check data sheet. The Amanero etc. will need to be programmed to provide this reset?
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Old 29th November 2019, 07:33 PM   #416
Blade2019 is offline Blade2019
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Join Date: Jan 2019
Hi,unixdeveloper

My PCB board is black.I got my money back.

This board:
2019 Dual AK4497EQ DAC AK4118 AK4497 DSD256 Native DAC 32Bit 384KHz USB AK4497 DAC,XMOS XU208 Amanero USB Bluetooth 5.0 APTX HD-in Amplifier from Consumer Electronics on AliExpress
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