@drubin - I’ve demoed Harbeth speakers but have never owned a pair. I’d say the Buchardt have more bass than the Harbeth. To my ears, Buchardt speakers are a little more rich and warm sounding. I recommend driving them with a more powerful amp though. I drive them with an Audio Hungary 100 watt tube amp and sound amazing. I also occasionally drive them with a Luxman 590axii which is a 30 watt class A amp and the results are very good.
From my auditions with the Harbeths, I prefer the Buchardt s400 mkii speakers. This is of course based on my gear and room…
What amp would you drive them with?