Soundlab has made an incredible speaker in the M1, one of the best in the world. They image better, and throw a better sound stage, than any speaker I've heard in the last 49 years of listening to sound, both professionally, and from an amateur standpoint. Given fine electronics, they will surround you with the performers. They go from 22 hertz to Ultrasonics, and are very fast on transients. Their performance on vocals is breathtaking. I've 2 sets of Soundlabs, and one simply has to go. They are big, at nearly 7 feet tall, and 3 feet wide, and should have a good sized room, and a good amplifier to sound their best. But if given that there will be very few speakers at any price that will even compare to them. These have all the upgrades prior to the PX series, and are in excellent shape. They come in four crates, totaling about 600 pounds, and must be shipped freight. But if you meet my price, and live in most of the Western states, I will deliver them to you for free, as I travel frequently. You can call me at 541-331-0294, with any questions you may have. Jerry.