DAC 2496 (AK4393) DAC KIT With CS8416+AK4393+5532

[50AE]

@ggetzoff, where did you see 1k value?

About the resistors, I only changed anode and cathode resistors. 150R cathode for the Broskie and 150R cathode again for the anode follower. B+ is 220V, anode resistor 11k.

[hotiron]

pins 17 and 19 measure .02V (8416) surely this cant be right !? 47K should be pulling these pins high!! Duff chip??????

[hotiron]

Could someone measure a working DAC please, the 2 47k next to L1.

[hotiron]

No Worries I've got it working now. It was a Reset problem.Sounding great.

[ggetzoff]

Originally Posted by 50AE

@ggetzoff, where did you see 1k value?

About the resistors, I only changed anode and cathode resistors. 150R cathode for the Broskie and 150R cathode again for the anode follower. B+ is 220V, anode resistor 11k.

The Unbalancer

Here's Broskie's schematic for VOUT usage and the link. Great article BTW.

[jef9200]

Hi all,
here is my version. Modified with the BOM, and transfos output. I use Jensen JT11-P1.
4X 470r carbon resistor, 2200pf mica in // (filter 70khz), and 13k série with 620pf between hot and cold on rca (anti-ringing, Jensen data sheet).
Sound is fine..
Before, i use caps output, but sound was no as good. No good bass.

[PsychoDogBeast]

Hi there all

Ive been skim reading through this great thread over the past couple of days, theres so much information to take in though.

I have purchased a pre-built DAC of fleabay in the black and silver aluminium casing, it took just short of 4 weeks to arrive and is a great bit of kit.

I have changed the op amp to a 46xx version and it sounds really good through my Sony APM 22ES speakers and home built power amp, unfortunately it seems to be lackin a bit of bass as said previously in the thread.

As the case is a bit short of space and i can only add components to the top side of the board due to the space constraints, can i ask what would be the best (and simplest) as im a bit of a newbie mods to get a bit more oomph out of the dac.

Im comparing it to my previous digital to analogue converter built into my Sony 2400ES home cinema amp and my source is a squeezebox playin flac files.

best regards and many thanks in advance.

James H

[sterlingmck]

Originally Posted by PsychoDogBeast

Hi there all

Ive been skim reading through this great thread over the past couple of days, theres so much information to take in though.

I have purchased a pre-built DAC of fleabay in the black and silver aluminium casing, it took just short of 4 weeks to arrive and is a great bit of kit.

I have changed the op amp to a 46xx version and it sounds really good through my Sony APM 22ES speakers and home built power amp, unfortunately it seems to be lackin a bit of bass as said previously in the thread.

As the case is a bit short of space and i can only add components to the top side of the board due to the space constraints, can i ask what would be the best (and simplest) as im a bit of a newbie mods to get a bit more oomph out of the dac.

Im comparing it to my previous digital to analogue converter built into my Sony 2400ES home cinema amp and my source is a squeezebox playin flac files.

best regards and many thanks in advance.

James H

Hi James

These dac chips seem to take quite a while to settle down.
I would not look to change anything untill you have between 100-300hrs on the unit (I always wait for 300hrs)
Then if you still have an issue, follow ClaveFreman's BOm staring with power supply

[ClaveFremen]

Originally Posted by sterlingmck

Then if you still have an issue, follow ClaveFreman's BOm staring with power supply

And LPF filter caps...

They're only 2€...

[Ryssen]

Originally Posted by jef9200

Before, i use caps output, but sound was no as good. No good bass.

I use output cap,but I´m locking for a output tranny.
Is the bass good with the JT11-P1?