Near Full Range, Highly efficient Stand Monitors?


Okay just curious, who builds a very efficient, maybe 95 db or better monitor/bookshelf type speaker, maybe with at least an 8" driver that goes reasonably deep into the 30 hz ranges?
Seems most would be rated around only 45 hz or up, most single driver designs in a small cabinet even vented would not go very low.. Anything? Even down to about 38 hz or so with a stable 8 ohm load, having some actual bass output?

Thanks
undertow
Audiokinesis
Yeah I figured, thats why I asked the question.. Larger speakers will be needed I am sure, or add a subwoofer. I saw these Audionote designs but they are bigger than a bookshelf for sure, and cost a pretty penny... Some new Hemp designed deal, suppose to be 98 db and down into the 30's, but about 3 ft tall still I think.
Thanks
UnderTow why not check out dukes speakers? Only 8in I know of that can give bass to 35hz in Med cab is fostex f200a but at only 90db 1 watt. F200a can still be used with some larger SET amps.
Well in all honesty this was more a general question rather than for a purchase, and I would not mind playing with a nice small speaker for fun, but it would need to be pretty cheap.. in the 400 range or so used.. Otherwise its not justified to me to have them as a hobby project or just keeping them around to have for a studio type setup when I want to use them.
Reference 3 A MM de Capos- killer and just one cap as a crossover to the tweeter, biwire/biampable. Huge sound stage.