Another Project. Behringer ADA8000, Revision with Cirrus Logic

[AUDIO FREQ]

So I got this from a friend, and I need to figure out hte capacitors in these areas. If anyone can help me out.
Trying to get this thing up and running so I can extend my I/O

I will recap the whole thing, because who knows how old these capacitors are.

 

[Khron]

Unless they're somehow fake, I think those are Panasonics. Blue sleeve would make them either SU (older general-purpose 85C), or M (newer general-purpose 85C).

Is the ADAT in/out done with V1401/2 chips?

 

[cyrano]

I've only seen Wavefront AL1101 chips in there, if my memory doesn't fool me...

 

[AUDIO FREQ]

Unless they're somehow fake, I think those are Panasonics. Blue sleeve would make them either SU (older general-purpose 85C), or M (newer general-purpose 85C).

Is the ADAT in/out done with V1401/2 chips?

I was asking, what values are they supposed to be? I think you are right, they are Panasonic with the M logo on them.

The ADAT I/O is indeed the V1401/2 chips.

 

[Khron]

Might this help?

https://www.synthxl.com/wp-content/uploads/2020/03/ada-8000-Schematics.pdf

 

[AUDIO FREQ]

I wish. I think that was for the Wavefront chips. Wouldn't the values be different for the Cirrus Logic layout?

 

[Matador]

Last time I looked into one of these, I had noted that there were a ton of 10uF/25V and 22uF/16V caps in there. Judging by the size, you can probably get away with just buying a bag of 22uF/25V caps and replacing everything (with the exception of the phantom blocking caps, of course).

This jives with the schematic posted above.

 

[Khron]

Wouldn't the values be different for the Cirrus Logic layout?

Why would / should they be?

 

[AUDIO FREQ]

Why would / should they be?

I assumed different chips, meant different requirements. But I will try it out! Thanks again guys

 

[AUDIO FREQ]

Last time I looked into one of these, I had noted that there were a ton of 10uF/25V and 22uF/16V caps in there. Judging by the size, you can probably get away with just buying a bag of 22uF/25V caps and replacing everything (with the exception of the phantom blocking caps, of course).

This jives with the schematic posted above.

Are the phantom blocking caps the 47uf 50v's?

 

[Matador]

Yes, it looks like it.

 

[Tubetec]

I tapped directly into the Wavefront chips balanced inputs ,
ditched the pre-amp board entirely ,
takes a load off the toroid transformer based psu in the original ada8000 , which had a tendency to fail ,especially with 110v primary connection .

 

[AUDIO FREQ]

I tapped directly into the Wavefront chips balanced inputs ,
ditched the pre-amp board entirely ,
takes a load off the toroid transformer based psu in the original ada8000 , which had a tendency to fail ,especially with 110v primary connection .

I was thinking about doing this. Just disconnecting the front board completely and using the DA section only. Or using as a summing box with transformers.

Apollo Adat OUT > ada8000 > 600:600 Tamura output transformers > Apollo IN