Arc speakers are available in a very broad range, so whatever your budget, Arc has you covered. Their XDi seriesspeakers are a nice choice for an OEM speaker upgrade. They sound good off of radio power, and if you have an amplifier, they sound even better. Coaxials are available in nearly any possible size you could need (1", 4", 4x6", 5 1/4", 5x7", 6 1/2" & 6x9") and component sets are available in 5 1/4" and 6 1/2") The components are worth a look, and outperform many speakers that are much more expensive. Next up is the ARC series, which is a considerable upgrade from the XDi. These speakers are a dual threat, as they can hang with sound quality speakers that are nearly twice the price, as well as play at very high levels! This is not the case with many hifi type speakers. We currently have a set of the ARC 602's in our sound board, stop in for a listen! Coaxials in the ARC series are available in 1" tweeters, 5 1/4", 6 1/2" and 6x9". Components in 5 1/4" and 6 1/2". Lastly, but not leastly, the BLACK series. All you need to do is research for any reviews on these speakers and read up. The Black series from ARC (pictured above) are known as literally some of the finest car audio speakers available. Warmness, detail, and clarity will be some key words you think of when you hear them. Truly the way the artist intended their music to sound.