Hello,
I just powered up my first MB6582 It is populated with 2x8580 and 1xARM2SID (FW version 3.13 beta 1) and so far I haven't wired the feedback potentiometer (the audio input in set to ground). I made a quick comparative on some sound with the note C3.
The first impression is that the output level on the ARM2SID is slightly lower and the sound seems a little less "dynamic" to me, but the sound is very very near the 8580's.
I made some screenshots so I took advantage of the community. On each screenshot there are 2 curves yellow is right chanel and green is left chanel (or reverse i have a doubt). For each sound there are 2 files with 8580_Axxx for the 8580 and arm2sid_Axxx for the ARM2SID
The files are here : https://1drv.ms/u/s!AnXdHJlFJcdsgRdKS749wPlVvd03?e=3xBHQj
Manuel
