Thank you Mark! Yes agree and I should have made that clear. The S5.5 is still giving Class A into 4 ohm and likely lower impedances too but at power below 50 watts. Even 40wpc Class A power is excellent though because that should suffice for most speakers unless the speaker is really tough to drive.
I was looking for an integrated and bought my CSiB in 2023 and really like it. I know the S5.5 would sound better but they each have their pluses. The CSiB is V-1 so the first 18wpc into 8 ohm is Class A. It is 150wpc 8 ohm/300wpc 4ohm/600wpc 2ohm all AB. I still get some Class A at 4 ohm but maybe 9wpc or less which is good enough for an 8 ohm Forte 3 speaker. It drives LRS+ superbly but is all AB and the high current is key. If I feel I need or want another amp though, the S5.5 is definitely my number one choice! Teajay and this thread are very convincing! I just hope Coda doesn't run out of those magic transistors.