those sp9/1 being floorstanders, go quite deep, and with proper placement allowing a little bass reinforcement from the room, they can be effectively full range for all but the most ardent bass lovers (40 hz -3b)
http://ukhhsoc.torrens.org/makers/Spendor/SP9-1_hifinews_publicity_reprint.pdf
having said that, most systems even with purportedly full range speakers can still benefit from well integrated subs for subterranean atmospherics...
come back and let us know what your friends end up doing -- graduating from an in wall system certainly sets the bar low for them to pleased with any proper in room hifi rig :)
http://ukhhsoc.torrens.org/makers/Spendor/SP9-1_hifinews_publicity_reprint.pdf
having said that, most systems even with purportedly full range speakers can still benefit from well integrated subs for subterranean atmospherics...
come back and let us know what your friends end up doing -- graduating from an in wall system certainly sets the bar low for them to pleased with any proper in room hifi rig :)