The frontpanel
Digital volume , filter, phase inversion , swap left and right.
In preamp volume and Channel
Digital volume , filter, phase inversion , swap left and right.
In preamp volume and Channel
Very cool! Are you going to offer front panel as separate product?
I'm looking for such controller for my AK4490 (DIYINHK implementation+waveio).
I'm looking for such controller for my AK4490 (DIYINHK implementation+waveio).
Short answer : NO
I sell it as a module and i provide only firmware for the stuff i build.
I dont see why i should support diyinhk or waveio. Embedded software is not an easy task and i dont want to be support center for stuff i have not build.
Br Sonny
I sell it as a module and i provide only firmware for the stuff i build.
I dont see why i should support diyinhk or waveio. Embedded software is not an easy task and i dont want to be support center for stuff i have not build.
Br Sonny
Here is the complete list of things we will support in the AK4490 with the frontpanel:
1) Sharp roll-off filter
2) Slow roll-off filter
3) Short delay Sharp roll-off filter
4) Short delay Slow roll-off filter
5) Super Slow Roll-off Filter
5) DSD Normal path
6) DSD Volume bypass
7) DSD filter 50KHz
8) DSD filter 150KHz
9) LEFT and RIGHT Channel Swap
10) phase inversion
11) Digital volume control or analog volume control (through preamp) (I am a bit tricky about digital volume control, as i need to see how it behaves on the datastream through USB)
1) Sharp roll-off filter
2) Slow roll-off filter
3) Short delay Sharp roll-off filter
4) Short delay Slow roll-off filter
5) Super Slow Roll-off Filter
5) DSD Normal path
6) DSD Volume bypass
7) DSD filter 50KHz
8) DSD filter 150KHz
9) LEFT and RIGHT Channel Swap
10) phase inversion
11) Digital volume control or analog volume control (through preamp) (I am a bit tricky about digital volume control, as i need to see how it behaves on the datastream through USB)
Last edited:
Short answer : NO
I dont see why i should support diyinhk or waveio.
From simple reason: Profit
There is no such product on the market... Yet.
From simple reason: Profit
There is no such product on the market... Yet.
Tempting. ... Is there no such Product on the market!!?????
Of course it could be isolated Down to say, we have digital inputs from other USB sources. What i dont want to, is to make new firmware for waveio modules or diyinhk... As This would be a nightmare....
Hi Sonny,
I wanted to let you know I received the package on Monday in good order. Quickly hooked it up yesterday and have been enjoying it ever since. I really like the way it sounds. Will take another picture once it is properly setup with mravlca's TPS7A4700 regulators.
I wanted to let you know I received the package on Monday in good order. Quickly hooked it up yesterday and have been enjoying it ever since. I really like the way it sounds. Will take another picture once it is properly setup with mravlca's TPS7A4700 regulators.

Tempting. ... Is there no such Product on the market!!?????
Of course it could be isolated Down to say, we have digital inputs from other USB sources. What i dont want to, is to make new firmware for waveio modules or diyinhk... As This would be a nightmare....
I don't know details of your implementation but when I say product I mean module that is able to read and change AK4490 chip registry using i2C or SPI dac interface.
From my perspective this module should not be specific to any vendor implementation but only to dac chip itself.
Please no hard feelings, I fully respect your decision 🙂
The frontpanel controller has 6 serial channels that Can be configured to i2c, spi and uart.
Two of them will be used by the frontpanel itself leaving 4 left.
I am have no hard feeling. I am just making my thoughts clear and i am openminded if the suggestions are wellfounded
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Two of them will be used by the frontpanel itself leaving 4 left.
I am have no hard feeling. I am just making my thoughts clear and i am openminded if the suggestions are wellfounded
Sent from my iPhone using Tapatalk
Great. The one single important thing when building a small voltage producer to a bigger voltage producer. Afaik none have reported anything, everything else is non sence. Period.
Great. The one single important thing when building a small voltage producer to a bigger voltage producer. Afaik none have reported anything, everything else is non sence. Period.
Could you explain what you mean?
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Yes. An amplifier is maily one thing. It takes a voltage from a source and amplifies that voltage to a new level.Could you explain what you mean?
My question is do you recommend passive linear plus minus X voltage to your circuit or do you recommend pre regulation?
I would always go for higher psrr values. So preregulated power source. But it does not have to be expensive or low noise level here.
What you want is to reject as much hum as possible. So use something like lm317/337 In front regulation .... It would give a total psrr of more than 100dB up to 1KHz. The board it self lays around 70dB up to 100KHz. So 200mVpp ripple is ok
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What you want is to reject as much hum as possible. So use something like lm317/337 In front regulation .... It would give a total psrr of more than 100dB up to 1KHz. The board it self lays around 70dB up to 100KHz. So 200mVpp ripple is ok
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Wired it up yesterday - pretty damn good Sonny 🙂
An externally hosted image should be here but it was not working when we last tested it.
Hi Sonny,
I wanted to let you know I received the package on Monday in good order. Quickly hooked it up yesterday and have been enjoying it ever since. I really like the way it sounds. Will take another picture once it is properly setup with mravlca's TPS7A4700 regulators.
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I am glad you like it. 🙂😎
Wired it up yesterday - pretty damn good Sonny 🙂
An externally hosted image should be here but it was not working when we last tested it.
Thanks for the kind words! 😀 You all have made me very happy.
It is always exciting to what people think of the work i do...
Again Thanks a lot guys and girls for the nice words!
BR Sonny
Sonny - I am seeing a bit of an issue with DSD64 occasionally losing lock. You can see my setup above. I am running the DAC PS at 7V (config. wise, it was easier to hit 7V than 5.25V).
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