A few web searches later, I'm now pretty sure that Classe is using the Philips RECS80 code generated by the SAA3004 chip. I'm not sure whether all the descriptions of "RECS80" elsewhere that contradict this are all errors or whether there is more than one protocol named "RECS80".

If you create hex for this with MakeHex, the toggle bit won't toggle. I doubt that would matter for a simple set of discrete commands, but it might.

I also see "correct" timing (frequency, pulse widths, etc.) defined by Philips for the SAA3004 chip, but looking at CML files that use this protocol, the timing varies all over. It might be necessary to match Classe's possibly wrong timing.

Haav, some of your other posts made it seem like you understand the special format of hex commands which start with 7000 and this this format might get the toggle bit for Philips RECS80 right, the way the more common special hex formats get the toggle bit right for RC-5 and RC-6. Can you explain the 7000 format?