I put the Q in front of an NHT xd system that I have had for years, but have used very little. I have had a love/hate relationship with the xd; it is very high resolution, but also very noisy and very fickle when it comes to what is connected to it. Also the satellites and the sub have metal cones and at times they sound, well, metallic. The other problem is the system is very lean sounding in the midbass and always sounded like something was missing. The high point is that the vocal clarity of the xd is extremely good and the image is pretty good as well. With the Quickie in the mix the metallic edge is gone, the image is improved and while it still sounds a little lean in the midbass, it isn't as noticeable with that DHT goodness in the equation. The Q takes rough edges off the system and really makes this active speaker shine. I'll be using this alot in the summer when it's just too hot to run tube amps.
Jamie