May I suggest you look at the NHT Evolution M5 instead of AZs if you have to put them in/on a bookcase/shelf?
They have a boundary adjustment feature which drops output below 300 Hz -6 dbs to compensate for the natural boost these frequencies response will receive from the proximity to the boundaries (shelves and walls).
I had Classic Threes in such a placement situation, but switched them out for the Evo M5s, and it was a bog improvement.
They have a boundary adjustment feature which drops output below 300 Hz -6 dbs to compensate for the natural boost these frequencies response will receive from the proximity to the boundaries (shelves and walls).
I had Classic Threes in such a placement situation, but switched them out for the Evo M5s, and it was a bog improvement.