Deep bass extending to 40hz and below is certainly possible from small stand mounts - you just can't have low bass and loud at the same time. There is also however some performance hit on the midrange in a small 2-way as the bass/mid doesn't make a very good mid driver while doing impressions of a rubber sink plunger - horrid intermod distortion. Therefore small loudspeakers with decent bass extension (perhaps that should be quietspeakers) are fine at lowish SPLs in small rooms. A small 3-way is likely a much better way to go from a performance POV. Quite rare these days but at one time chunky bookshelf models with 8" bass, mid and tweeter were a common finding in a manufacturer's range. But then back in the day an 8" bass driver was considered normal, or even small!