I've narrowed my search for dedicated music speakers down to the Sierra-2, Nola Boxer, and Reference 3A Dulcet, using a Rogue Sphinx to drive them. They all seem to get great reviews, are well liked, and pricing is very close. Are the Sierra-2s better, and has anyone here heard the Boxers and/or the Dulcets and can give an opinion as to how they sound and compare to the Sierra-2? No chance to hear any of them myself beforehand, so I'll likely be buying blind. Thanks.