I bought these with the emphasis on low cost, and was surprised at the quality and performance. Obviously they aren't going to compare to a 200$ set from other brands, but for a cheap set of 6.5" components, they delivered.
The mid-bass response is likely this sets greatest asset. The 6.5" driver was one of the best I've heard for bass output in this size, but it rolled off the high frequencies too quickly, leaving a gap before the small tweeter took over.
The tweeter was smaller than I'd expected but surprisingly clear and crisp without being overwhelming. Like mentioned earlier, there was a gap in frequency response around the crossover point, which may be an attribute of the small size.
Overall I couldn't find much to complain about. The set handled all the power I could throw at it nicely. It was loud in volume without distorting and sound quality was on par with most mid-range components.
I found myself going back and forth between these and my other vehicle with 6.5" JBL components to hear the difference, and I'd be hard pressed to choose one over the other. I highly recommended these if price is a major concern.
I called Sonic Electronix because I'm not an expert in any of this car audio stuff and I want a sweet sounding ride. They provided everything I needed, from superb knowledge, friendly attitude. Did I mention their prices were great! Thanks Sonic Electronix!!!