CPS Extended Service Plan (more info)
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I think these are great sounding speakers but for one issue I'll talk about later. They are quite bright - I have the tweeters set to -5dB. With the tweeters mellowed they sound great. But over time I developed a problem.
I originally thought is was the factory amplifier going bad and creating distortion problems in my right front speaker. It usually sounded great in the morning but the longer I would drive the car, distortion would get steadily worse. After I replaced the factory amp in my 2008 Accord Coupe the issue was still there. After checking out the speaker I found out the center cone piece (removable to make it a coax speaker) was rubbing against the side of the cone and creating some nasty distortion. I tried removing it and getting it back in place. But after more time it, and the driver side speaker, both started having the same issue. So I completely removed the piece that goes in the center of the speaker, but it doesn't sound quite right at higher volumes. I recommend getting a component speaker that does NOT have the option to convert it to a coax speaker - a true solid woofer with no hole in the middle.
I plan on replacing the woofers with something similar but keeping the tweeters.
10" 2000W 2-Ohm Type-R Car Audio Subwoofer
1100W Class D Monoblock X-Power Series Car Audio Amplifier
700W 5-Channel Class D XD Series Car Audio Amplifier
Enabled Excelon Series CD/MP3 AM/FM Receiver with Illluminated Front USB and Aux Input
Enabled Excelon Series CD/MP3 AM/FM Receiver with 3-Line Dot Variable Color LCD Display, Front USB and Aux Input