These are excellent speakers, used as monitors in world class studios, such as atlantic records in thier days.....I also had three pairs in my own studio I built. They are simply awesome and mixes translate very very well. I later put a pair of Urie monitors in the control room. Fankly I liked the altecs better for mixing. They come in a utility speaker gray color, so I took one pair of the altecs and brought it down to natural wood and put them in the house. I still have not found a more natural and open speaker system period. That takes in over 40 years of professional work which means I've seen and heard alot! Enjoy them. Placement is critical, power is not, they are very efficient so 20 watts will push them fine. I used mine with a pair of McIntosh 240 tube amps, each wired for mono, so 80 watts per channel. Enjoy!