• These commercial threads are for private transactions. diyAudio.com provides these forums for the convenience of our members, but makes no warranty nor assumes any responsibility. We do not vet any members, use of this facility is at your own risk. Customers can post any issues in those threads as long as it is done in a civil manner. All diyAudio rules about conduct apply and will be enforced.

Akita "AllInOne" Amp based on TPA325x PFFB+ and LLC PSU in one board.

Jump to Latest
#1,083
Hi Vitaly,
Thanks for some explanation.

Please give configuration details for all the circled header pins in my pictures. What is the purpose of the red jumpers?
Is the faston tab (J25) a earth/chassis ground connection?
Is J3 for fault indication?

Just a suggestion, if you add a detailed hookup diagram and the Akita amplifier schematic to your first post, you wouldn’t have to keep answering these questions. The more amps you ship out, the more questions your going to get because the information is vague and in some cases non-existent.

Thanks,
Vunce
 

Attachments

  • D4DAD2D7-3820-4C5F-8758-22B3A67ECFC0.jpeg
    D4DAD2D7-3820-4C5F-8758-22B3A67ECFC0.jpeg
    715.2 KB · Views: 185
  • 13521534-5ACB-47E2-97C5-A7081D515842.jpeg
    13521534-5ACB-47E2-97C5-A7081D515842.jpeg
    768 KB · Views: 185
#1,085
Vunce said:
Hi Vitaly,
Thanks for some explanation.

Please give configuration details for all the circled header pins in my pictures. What is the purpose of the red jumpers?
Is the faston tab (J25) a earth/chassis ground connection?
Is J3 for fault indication?

Just a suggestion, if you add a detailed hookup diagram and the Akita amplifier schematic to your first post, you wouldn’t have to keep answering these questions. The more amps you ship out, the more questions your going to get because the information is vague and in some cases non-existent.

Thanks,
Vunce
Click to expand...


There is the PCB mass with me ...
See photo
 

Attachments

  • P1040789.jpg
    P1040789.jpg
    635.3 KB · Views: 177
Last edited:
#1,088
Hi all!
I finally found a moment to test the vitaly akita amp ... With a usb dac, it seems very promising.
All is well! I did not give him a gift, no protection from the amp ... Unlike my Chinese amp!

In short, I am super happy !!! (it was worth the wait)😉😉😉😉
 

Attachments

  • DSC_0367.jpg
    DSC_0367.jpg
    1 MB · Views: 121
#1,089
Thanks for the pics Cardone. I checked with my DMM, there seems to be approximately 20R resistance from either a resistor or NTC between the J25 faston and the aluminum baseplate, probably as a Ground Loop Breaker.
You have no ‘hum’ issues at all, correct?
I will feed a balanced signal to the Akita from my BTSB SE—>Bal converter.
But, I’d like clarification from Vitaly if the jumpers need to be reconfigured.

Also, is there an auxiliary 12v power output on the Akita?
 
#1,095
Vunce said:
I will feed a balanced signal to the Akita from my BTSB SE—>Bal converter.
But, I’d like clarification from Vitaly if the jumpers need to be reconfigured.

Also, is there an auxiliary 12v power output on the Akita?
Click to expand...
AUX 17v +- left side before stab
you see first red jumpers closed right pair - replace for closed left pair

After this, inputs = A-, center GND, B+
and C-, Center GND, D+
 
#1,099
drMordor said:
AUX 17v +- left side before stab
you see first red jumpers closed right pair - replace for closed left pair

After this, inputs = A-, center GND, B+
and C-, Center GND, D+
Click to expand...

Thank you for the supporting info Vitaly!

Referencing my attached picture.

- Move #2 jumper to the left for balanced input.
- What is #1 jumper used for?

I’m looking forward to getting some sound from this little guy.
Thank you.
 

Attachments

  • 07718014-D61B-4E6A-90EA-DD3525676E15.jpeg
    07718014-D61B-4E6A-90EA-DD3525676E15.jpeg
    807.2 KB · Views: 205
You must log in or register to reply here.
Top Bottom