SID Problem

[dreamerxb]

I have a problem with the AtomSID V1.8 board from Remoth. It is properly not a board issue.
When I use the internal speaker with a swinsid you hear an annoying whistle sound. This is not the case when I use a armsid or when I use the swinsid on an active speaker set.
I uploaded three movies's on YouTube to illustrate this.

First movie is made with the ARMSID with the internal speaker, no problem:
https://www.youtube.com/watch?v=ugkC9eSJcuY

The second movie is made with the SWINSID and internal speaker, whistle tone:
https://www.youtube.com/watch?v=fUjt-ueQ4wg

The third movie is made with the SWINSID on a active speaker set, no problem:
https://www.youtube.com/watch?v=0hCCa215JJg

Can this be a problem of a modern power supply or the internal speaker or filters ?
Has anyone any clue ?

[dreamerxb]

Problem solved. The swinsid is not so great in combination with the atom. Especially when using extensions on the atom. I found out that when using the combined VGA/TUBE board that the SWINSID is preforming terrible. The ARMSID has now problem at all. I tested also the new KICKSID, which is based on a pi pico, has no problem at all.