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Question: What is the exact size hole diameter you have to cut for these speakers?
Document: These speakers were perfect for my surround sound. They mounted perfectfully into the ceiling and the sound great. recommend to anyone.
I also would not recommend ceiling mount speakers for primarily music listening, I believe that you would want to stay with shelf speakers.
I bought these to replace some 6&#34; Klipsch speakers. These sound much better! They cost about double, so it's not a total fair comparison. You maybe able to save some looking around though..
These are worth the money if you want great sound and don't want to be cluttered with surround sound speakers. They have awesome sounds, both with television and music. We just use two in our 20' high ceilings and are thrilled with the crisp, clear sound.
Just purchased a bunch of these speakers during some house remodeling. 2 of them went outside in a small overhang and they sound great. Very full sound and almost too much  highs ( which can easily be adjusted). the lows can be heard from across the yard and they sound great.
We are very please with our Polk speakers, they were easily installed and look very good. We were aware when we purchased the speakers that they are not the type of speaker you would use for stereo only. Please consider carefully before you buy these what the main purpose of your system is. If it is TV and movies then these are the speakers for you. The sound quality is fabulous, sharp and clear.
Being my first in-ceiling install, I wasn't expecting much from the overall sound quality compared to good old fashion floor standing speakers. The only reason for going to the ceiling for this project is the room design did not fit for floor speakers, also to some degree the listeners were not as concerned with high fidelity in the room. Installation of the speakers was straight forward and easy.
I have had several different sets of in wall and in ceiling speakers over the years and they have all been fine for a secondary room and background music. For my new media room my wife and I were after a clean look with no visible speakers. We ordered a set of these for the front left and right in our setup. We kept a standard shelf speaker in a cabinet for the center channel.We are really surprised at how great these speakers sound.
For the past year, I have had Polk Audio TC80i Round 2-Way 8-Inch In-Ceiling Loudspeakers installed in the ceiling of my family room as part of a 5.1 Channel surround sound system powered by a Yamaha HTR-5063BL receiver. The sound is very good when used for music and the speakers are excellent when used as rear surround speakers.Two warnings.1. They are bigger than they look in the photo, so pay attention to the dimensions.2.
the bass was much stronger, deeper and a much more rich sounding. The enclosure cost about $15 in materials and was well worth it (compared to the Polk one which is $250 each) The box was glued and screwed together and it will get mounted in the ceiling before the Sheetrock goes up.
Answer: 9 3/8" (23.81cm)http://www.polkaudio.com/downloads/catalogs/TCi_PCatalogENG.pdf