Rydenfan, don't know if you're still up in the air, and I haven't heard the 400s, but I have owned a LOT of different speakers (big B&Ws, Dunlavy's, big Infinity's, top of the line Krell's, Tyler Acoustics, among others) and can tell you that the HT2s are pretty special: image like champs, an amazing lack of "compression", terrific detail, and in my room pretty solid bass. While I augment them with monster subs, but for most music could easily get by without the subs.