Dunlavys have some of the smallest footprints around for a given level of bass extension, because they are so tall. So I don't think you're going to find anything smaller that goes as low. Maybe look into the SC-III if you think the SC-IV is too big. Or try some of the smaller Aerial floorstanders, they all have pretty good extension for their size.
Speaker suggestions wanted
As any audio enthusiast who has ever moved can likely attest, new and smaller rooms can be a challenge. I would be grateful for any suggestions on possible speakers that would be suitable in the following scenario. My new listening room measures 21'x 10', and the spkrs need to be on the long wall, approx 2.5'out,with the rt spkr approx 2' from the side wall and a distance of approx 7' between the spkrs. The listening position will be approx 7' from the center axis. I want to spend $1500.(used)on a pair of floorstanding spkrs with a freq. range no < an in room 35Hz. I listen to lo-fi as well as hi-fi recordings. Spkrs I've owned and have been moved by include Spica TC-60's, Dunlavy SC-IV's, and a pair of Thiel 2.2's, (which I respected yet could never quite warm up to). Any speaker suggestions befitting the above would be most welcome.