Thoughts and experiences on the Spendor SP100 R2

I can't help you with the comparison, but I can tell you that the SP100s were very tolerant of a smaller 12 x 15 room. I had no problem with bass nodes. They were on Sound Anchor stands.   

@donquichotte

i have not heard the sp2/3 r2, but historically, the sp2 line was a true two way (with a single tweeter) and counterintuitively, this model was known to have most midrange and midbass warmth of all the 3 founding models (s100 the big brother, sp1 the middle brother, and sp2 the little brother), despite the bass extension to the lowest octave was most limited (almost non existent) - the cost of this warmth was a loss of transparency and tactility through the treble and mids, although the midrange still sounds quite ’beautiful’

the bc1/sp1 was the founding model, with the best midrange magic, very good treble, and decent/passable bass, tremendous overall transparency

the s100 gave you almost as good midrange magic, terrific transparency and coherence, but even more extended highs and significantly deeper weightier fuller bass -- and, very importantly, the biggest soundstage

over time i am sure the revisions to the sp2 series, leading to the r2 designation, gave it (and all their revised speakers) more treble energy and touch more bass speed, but overall, these speakers still all have a more ’rolling’ or ’enveloping’ nature of bass energy, rather than ’pounding/slammy’ bass... this applies to the big bro s100 as well, although once again, each revision improves the slam marginally

(side note - this is why spendor launched the a and d series of floor standing ’modern sound’ speakers... with greater overt transparency, speed and slam - the two lines are as differentiated in style of sound as they are in their appearance)

all this is all a long way of saying, i think the sp2 series is most compromised in terms of the legendary spendor magic top to bottom transparency and coherence, and has the smallest soundstage, so my suggestion to you would be to get a sp1/2 series speaker and couple THAT with good subs for the best sound with the more slammy bass you seek -- or -- just go for d7 or d9’s if you don’t losing a little midrange magic and timbral accuracy for modern hifi traits in the highs and lows

sorry for the meander... hope this helps nonetheless

Thank you both, very useful to me. So, SP100R2 won't bring additional bass slam, just extension, right? I've heard the Classic 100 but I think the positioning in the room was unfortunate or maybe it was simply a bad room as the bass extension suffered considerably - full sounding down to about 40Hz and nothing below. The deep tympani on Dead Can Dance's "Yulunga" were basically non-existent, and I can hear them on my SP2/3R2's! So I cannot extrapolate much about the SP100R2's bass from that experience.
Adding subs to the Classic 1/2, for example, would require a pretty low crossover point, most likely below 60Hz, so I'm not sure how would this option yield better bass slam / impact?!

@triodelover1499: between my SP2/3R2 and my Harbeth M30.2 (now up for sale) I prefer the former. Warmer, more exuberant, joyful or friendly I would say, with better lit mids, nice highs, bigger sound and in most cases I prefer their acoustic timbres reproduction. The Harbeth's are more "serious", they wear a costume with an appropriate tie so to speak, have a bit of a bump around 100Hz and the classic BBC dip in the midrange, a very (objectively speaking, more) refined tweeter and their less extended bass is clearer, tighter and with good (better?) texture. I must admit that the M30.2 played the most astonishingly realistic string quartet I've ever heard, though, they are great with violin and cello. 

Thanks to all for the comments and pointers. I am trying to get the SP100’s, and dealing with the seller trying to get to agreement on price.

I noticed the pair of used S8e Spendors ... I would surmise that these are not nearly as good as the SP100's.

s8e is a nice speaker, top to bottom... but it has a rather recessed midrange that is the anthesis of what i feel makes spendor’s classic line of speakers so darned special

on its own the s8e is very listenable, until you compare it to sp1 or sp1/2e with subs, for instance...