Just picked up a pair to put in a different room. I can switch between them and my classic 3's. The zero's are very small but fit and finish is top notch. They don't go low but they image quite nicely.
Got that covered as I picked up (awhile back) the NHT b-10d sub. Really nice sealed sub, a perfect cube acutally 12x12. When I unpacked it I was somewhat surprised by how small it was. I used to own a HSU vtf-2 mk2 which was much larger... But no worries, I prefer the NHT and like that it is compact and powerful.