I have lived with the Archos (ribbon G2 tweeter) for 2 weeks while at the same time I own a HT3. I think perhaps Jim's next project can be an Archos II with a deeper bass extension (active woofer??)
From midrange up, the Archos sounded more 'diffused' than the HT3. Some may call the Archos more 'mellow', and more 3-dimensional, it can certainly be more seductive to some people - including me. Honestly it will be difficult for me to choose between the two.
In the bass region, however, the HT3 goes lower. It may not be obvious if you only listen to the Archos and not the HT3. But if you had the opportunity to swap them around like I did, the difference is larger than I thought.
Bob, I'm sorry that the piano piece continues to 'haunt' you until today
. Part of it is due to the more 'mellow' characters of the open-baffle design, the rest is due to the McIntosh MC275 amp with stock tubes 12AX7