The room lens system can make a significant upgrade to most systems. Maybe as much as a new amp. The difference they made in clarity, focus, pitch, imaging, and even bass response in my system and a friend's system were not subtle.
I started with three Argent Lenses, placed them in the room according to the websites hints and was so impressed I ended up constructing three more. I use 1 pair behind the speakers about a foot from the back wall placed behind my equipment rack(there was only one in the middle before I made the next three, the orginal pair about 2 foot in front of the speakers along the side walls to cover the first reflection point, and then added the second pair about 3 foot in front of those to work on the secondary reflection point. I tried a lens behind the listening chair and in my room it caused a suck out.
At any rate, I highly recommend this tweak and believe they can make a significant differnce in most systems.
I started with three Argent Lenses, placed them in the room according to the websites hints and was so impressed I ended up constructing three more. I use 1 pair behind the speakers about a foot from the back wall placed behind my equipment rack(there was only one in the middle before I made the next three, the orginal pair about 2 foot in front of the speakers along the side walls to cover the first reflection point, and then added the second pair about 3 foot in front of those to work on the secondary reflection point. I tried a lens behind the listening chair and in my room it caused a suck out.
At any rate, I highly recommend this tweak and believe they can make a significant differnce in most systems.