[quote name='Static X']Bullshit. I have had an alp-9857 in my car when it first come out to demo the unit. I was running Blaupunkt Velocity components in the front and rear pushed off a Yzen ya-500 amp, 3 Blaupunkt Velocity 10"s being pushed off Yzen x-1500 and the SQ is great. The only thing that sounds better is my Blaupunkt San Francisco and Bremen head units, and that's only because you can fine tune them to the tightest levels with multchannel high band EQ's and center channel outs if you want to build a center speaker enclosure.
You don't need to worry about built in EQ unless you are an audiophile. If you are using mp3 and compressed formats, the EQ isn't going to make a difference in what you are going to hear. MP3 files will always sound a little muddier to the original CD source unless you tweak the tracks on the pc before you listen to them on a car stereo. I gather from your earlier post that wasn't what you wanted to do, so I rules out the built in EQ. If you want the best MP3 compatible deck with the most options possible, you will want to check out the Blaupunkt Bremen mp-74. That is the total package. Sub out, center out, aux in for ipod etc, 4 channel 27 band EQ and so many other features it will make you sick. It's just very expensive and most people hate the interface because it is very complicated. It's certainly NOT for your casual listener. I think you will be more than happy with the Alpine unit. Not a huge fan of their subs/interior speakers, but the head units are top quality.[/QUOTE]
So I guess when you look at specs for both the Kenwood KDC-X590 and Alpine 9857, you can't see these differences:
Kenwood 22 RMS watts
Alpine 18 RMS watts
Kenwood 4volt Preamp Voltage
Alpine 2volt Preamp Voltage
Kenwood 3 EQ Bands
Alpine None
I know that the Kenwood also has 24bit DAC, don't know about the Alpine. One nice thing about the Alpine is that it is both Sirius and XM, and I belive the Kenwood is only Sirius. But from those above specs, looks a little stripped down to me. I have had Pioneer, Kenwood and Alpine decks the past. The only deck I had a problem with is the Alpine (display went out on me after 4 years) and playing some CD's became spotty. Now, normally I would chalk this up to just a one-off case, but from my recommendation, my older brother bought an Alpine deck. He has had problems in playing some CD's, it seems to be only for a certain few CD's, but still.
Now these decks were bought 5 years ago or so, so quality may have changed.
Just my two cents. No need to get all exciteable and start calling BULLSHIT.
Link, in your case though, since you already have an iPod, I woud probably go with the Alpine. I have heard that the Alpine decks work best with the iPods, but you may want to do more research on those. Try reading some of the user reviews on Crutchfields site, or maybe even some iPod specific boards.