Here is a little of all that great, this speaker "sounds" like it should, UPA 2x, 1x 650P by side and you made a concert for 250 to 300 people (I suggest you to hang one under the other with the angle). The enclosure alone "sounds" not with a CD, for against the voice is perfect (ok I'm a fan of Meyer). The weight is that it is heavy (take the C6 of D & B, it's heavy), the price is expensive but correct him, take the competitors and made the calculation with a real amp, the real cable and fly right -box, you'll be amazed. This enclosure about 25 years and is still not outdated.