Ok, so far this is what i've gathered:
(note: this has been cross posted for more replies:
http://www.caraudioforum.com/vbb3/sh....php?p=1730290 )

Seems like new 6.5" components for the front will be a very good upgrade so:
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• JBL, Oz, Dynaudio, and Morel are brands that have been suggested. I'll look into these, hopefully they aren't insanely expensive [img]smile.gif[/img]</font>
• Adire Koda 6.5" woofers have been suggested. And the price is really good on those (from an online source here in the lower mainland anyways). So I might check those out. Anyone ever heard them?</font>
• Run atleast 50x2watts for an amp.</font>
• Do I really need to replace all 4 speakers? front and back? And can I just replace the woofer, while leaving the tweater stock?</font>

As for Subs:
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• The 10" performing better then 12" is apparently a myth.</font>
• Possibly look into using a 10" and crossing over high frequencies. Does this mean I need a seperate cross over other then what the Alpine 9847 has?</font>
• Spend more money on the midbass (6.5") rather then the subs. Buy type-s instead of type-R.</font>
• A sealed enclosure seems to be the most suggested. But both ported(vented?) and sealed have been mentioned.</font>

[ September 19, 2005, 02:22 PM: Message edited by: Cyntax ]

 

if you are referring to the alpine cda9847...it has no crossover section... just a non fading sub output,and if you want it to bang a little , a properly tuned ported box is the way to go, regardless of your sub choice in my opinion. [img]graemlins/thumb.gif[/img]

 

Interesting, a non-fading sub output. So how does the deck know what frequencies to send to the sub?

 

^ I agree

Also the 6500D on a single DVC will give you lots of control.

Investing in a strong mid bass woofer up front will help bring the bass forward.

[ September 19, 2005, 05:37 PM: Message edited by: MITEK CANADA ]

 

Interesting, a non-fading sub output. So how does the deck know what frequencies to send to the sub? </font>[/QUOTE]It doesn't need to know. It could be a front amplifier non-fading pre-out. All it is an output that is not affected by the fader control. It still sends a full-range signal.

 

Interesting, a non-fading sub output. So how does the deck know what frequencies to send to the sub? </font>[/QUOTE]It doesn't need to know. It could be a front amplifier non-fading pre-out. All it is an output that is not affected by the fader control. It still sends a full-range signal. </font>[/QUOTE]Is that desirable? I've always thought with a sub you only want the lowest frequencies. Or does it just not reproduce the higher frequencies (or not enough to actually hear)? Or do I still need a crossover somewhere [img]smile.gif[/img]

Update: Scratch that last comment. Just noticed there is a built in crossover in the amp. I guess that answers my question.

[ September 19, 2005, 05:50 PM: Message edited by: Cyntax ]