[104° conical] I used the for the office PA and the Boss said it sounded like a DJ at work. Very nice, great sound and easy hookup. If you never hooked up a speaker with a transformer you may need a little trial and error. But, it is still just 2 wires and tape off the rest. I will order more of these.

[47 - 20000 Hz] This kit has great templates and instructions. I will share that the maximum capacity of the mounting clamps is 1 and 1/4 inches making that the thickest material these will mount into. These sound wonderful! The tweeter stalks are aimable to provide direction to the sound field which is handy for my ceiling mount application. I guess I'm happy!

[3150Hz] A simple joy to install, they look fantastic, and sound VERY good for the size and price.

[8 Ohm] Nice looking speakers. Very easy to install.

[60 - 20000 Hz] OK... I'm really apprehensive about good deals... But this is a GOOD DEAL!! I've got 12 rooms to place speakers in and after reading reviews about these speakers and seeing the cost as well I was still apprehensive. So I only purchased 3 pair and I'm glad I did!! As a matter of fact, I'm happier that I didn't purchase a few of the expensive ones to go into other rooms because now I'm going with these through out my house. If you want to blow the dough on more expensive speakers go ahead, but if you're on a budget you should be extremely happy with these speakers. I can't tell you about the installation process because I had a professional installer do it but apparently he didn't have a problem with it and he installed them within minutes. He didn't complain about the speakers either. There may be better speakers out there, but for the price I don't think anything should come close --- plus they come in a pair!!! Will definitely be ordering more soon!!!

[8 Ohm] Replaced one I already had, but was knocked out of ceiling by a contractor in my attic.

[60 - 20000 Hz] We paired these little speakers with the Pyle Pro Mini Blue-Series Stereo 240W Home Theater Power for a conference room. They work great, we tried everything from classical to rap to safety videos and we impressed with the quality. Our room was only 18x20 and two speakers were plenty in our case. Will buy again.

[White] I made a lot of comparisons on in wall speakers and for the money and performance against other speakers in the stores the POLK speakers were the best deal. After installing them in my home I was sure my decision was the correct one. I couldn't be happier.

[109 dB] Across the board... an excellent speaker. I have years of customer install experience in in-wall systems and have to say this model takes the cake. I am very impressed with the dynamic range of the RC55i. Even after the third customer installtion of the RC55i, I find myself wanting to sit down and really listen again to these great sounding speakers. That's something I rarely do.

[2 speakers] Very impressed with sound coming from this cheap speakers. Went to test them in my Uncles house and he bought them from me. I just bought 2 more sets to complete my installation