Best standmounts with a 7" woofer/driver

@big_greg Hey thanks for this recommendation. I've never heard of this Canadian company. I'll do some reading on these. 23Hz is crazy low. Cheers man

Legacy Calibre.

@big_greg  Thank you for bringing this to our attention. After reviewing its specs, it is realized that the xDB model actually 'cheats' a bit and may not be classified as a traditional stand-mount speaker since the entire 'stand' functions as an extension of the transmission-line like bass port. Its sibling, the Studio II, is more in line with what we're discussing here—a sealed box design with an 8" long-excursion woofer reaching down to 28Hz (?dB) moves a lot of air.  There’s a connector inside the binding post panel that can even be disconnected to reduce the bass response by 2-3 dB if the room is overly pressurized.  Interesting.

All excellent options! Two more to add to the list:

Proac Response D2

PS Audio Aspen FR5

I own the Dynaudio Special 40 and find that they have plenty of bass for me, but @bluorion comments about upgrading to the Atalante 3 has me thinking. 

If I am the importer and obviously biased, can I mention the ATC SCM20 active or passive should be on your "7 inch driver" list?  It's a true stand mount.  ATC does not use a transmission line or port to boost bass with the cabinet on the SCM20-its a sealed box, with the ideal 12dB per octave roll off from its usable limit (which is about 85Hz).  

It should be discussed that bass needs a larger room to be heard.  The science of Wavelengths need to be considered, because expecting true 32Hz means you need an 11 meter (or about 35 feet) room dimension to support wavelengths at 32Hz.  Even if the speaker is capable and tries to produce it, it's longer than the room so it won't work out well!  So some acoustics minded folks would say, measure your room, know how low the usable limit of your room is.  Then work backwards to find a speaker that goes at least that low.  Investing in bass you cannot hear will generate another Audiogon post ("my speaker says 50Hz but they have no bass in this room") .  A 10x13 ft room can ideally support as low as 85Hz - hence the the SCM 20 at about 85Hz roll off is an ideal fit in this size space.  With low frequency, the larger the room the better.

[it should also be added there are tricks using multiple subs at low level to force bass into a space smaller than the room dimensions technically allow.  Sometimes 3 or 4 subs are needed.  This is how we do it in a studio or home when a client has to have it, but this work around gets expensive and has its own flaws and limitations]

Brad