Absolutly incredible, clean bass response. I have friends with 2 subs that dont get as clean of bass as i can get with these speakers. Treble is a little above average, not as nice as tweeters and mids. For the money these speakers out perform anything out there.

distorting level should be higher

I bought these speakers new and it was the best thing i have bought for my car yet, the improvement was absolutly incredible. As i mentioned above, the bass and treble responses are amazing. The only flaw i can think of would be the fact that i cant get both high volume and the same no distorion bass as lower volumes.

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alpine, factory alpine, jbl and sony