Hey, Guys!
I did not compare them directly to the 40's, but almost...they replaced a pair of Harbeth Monitor 30's. So same basic sound minus the bottom octave and the ambient sense of the recording venue. Like the Harbeth, the midrange is superb, beyond criticism. I would say that the Audax tweeter in the Graham has more life and energy than the Seas Excel in the Harbeth, but without being in any way bright. The other advantage the Graham has is its 89dB/watt sensitivity (vs. 86 dB for the 40's). I occasionally use a 12W/channel Pass clone amp (single ended Class A) with astonishing results. I loved my Harbeths, and I see another pair of 30's sometime down the road. I don't think they'll let me into a nursing home with the big-ass Grahams...