Wow, thanks for all the responses. I think I might demo an amp with significantly more current and power than my NAD and see what happens. Something tells me though, that there is a disconnect between the size of the 1/2s and what they are capable of. And as funds allow, I might look at an REL B3 as well.
Weak Bass from my SP 1/2s
I've lived with Spendor 1/2Es (circa 12/97) for about a year now and love them. However, I have noticed that they just have very low bass output under anything below about 70 Hz (to my ears) though they are rated for +/- 3db at 45Hz. Interestingly enough, my old SP 2/3s, which were smaller and rated down to 60Hz, clearly had significantly more extension connected to the same front end. I have moved them around to no avail and am scratching my head, as I KNOW they are capable of more. Additionally, the woofers move surprisingly little when reproducing low bass at higher dBs levels (less than my 2/3s). Are there any SP1/2 owners out there that have experienced the same thing, and if so is the key a beefy amp? (I am driving them with a 25W SS NAD).