Overall I would have to say Polk Audio but this is definitely a personal opinion and also comes with some explanation. For example, I feel that Polk makes better small car audio speakers but I don't particularly like their subs or amps. Polk also makes great home theater speakers and I don't think diamond sells any Home Theater equipment except freestanding subs. To accurately compare these two brands you would have to limit yourself to a single product and compare that.
Polk Audio was created in 1972.
No , the Polk audio rc audio 80i is not a cell phone. Ther Polk audio rc audio 80 i is an remote control, otherwise , uncommonly known as a traducer .
Sony will give you better top end sound while Polk will be better on the bass notes.
Polk Audio rc80i are speakers which can be mounted in your ceiling. Your local audio or electronics store should carry them, you can also get them here: http://www.amazon.com/Polk-Audio-RC80i-Ceiling-Speakers/dp/B00006BMQT
Polk Audio has been around for a long time in the speaker business that says something about the company. The subwoofers are top's also deep bass. Yes i like Polk Audio.
Polk audio subwoofers can be found at specialized audio stores. Retail stores like Radioshack sell this brand. If one wants to buy from an online retailer, Amazon has a selection of Polk Audio products in their catalog.
Polk Audio Surroundbars can be purchased online from websites like Amazon or from electronics retail stores like Best Buy. To find a local dealer, use the "Where To Buy" function on the Polk Audio website.
Yes Polk Audio makes home theater speakers paired with an Onkyo receiver
A Polk Audio Surround bar can be purchased from many places. These includes stores that specifically sell audio equipment as that is the best place to start.
from there web page they were founded in 1972
If one is wanting to purchase Polk Audio RM6750 speakers they are widely available. One can purchase from Future Shop or directly from the Polk Audio website. One can also find these speakers available on Amazon and eBay.
Diamond audio is a manufacturer of speakers, audio systems, and woofers. Diamond Audio supply products for use in vehicles and have stores located throughout the US.