Bought my first alpine hu. Quick question

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kingpin111

Member - Posts: 38

Joined: February 10, 2005

Location: Canada

Posted: March 20, 2005 at 10:45 PM / IP Logged

I just bought this hu.

CDA-9851 new for 2005

i know its not tthe highest quality from alpine's line but considering i have seen it for $270 american, i couldn't resist paying only $280 canadian for it. i consider it a pretty good score.

But here is the question.

is it better to set the crossover for my subs on the amp, or should i set it from the hu. will it make any difference which way i go.

i was thinking of just turning the crossover on the amp all the way up, and just setting it between 80 - 100hz on the hu.

thanks

kingpin

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kingpin111

Member - Posts: 38

Joined: February 10, 2005

Location: Canada

Posted: March 20, 2005 at 10:52 PM / IP Logged

oh, and here is the one i bought.

http://www.crutchfield.com/S-5IwnqHNYUrO/cgi-bin/ProdView.asp?i=500CDA9851&search=ALPINE+CDA9851

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ss-installer

Silver - Posts: 444

Joined: February 27, 2005

Location: United States

Posted: March 20, 2005 at 10:56 PM / IP Logged

set the low pass frequency on amp the same as low pass frequency (sub-out) on HU.

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tcss

Silver - Posts: 1,623

Joined: June 07, 2004

Location: United States

Posted: March 21, 2005 at 7:39 PM / IP Logged

I've found that the X-overs on the Alpine decks aren't quite as good as the ones on a high quality amp. What kind of amp do you have?

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deocder

Copper - Posts: 138

Joined: December 27, 2004

Posted: March 22, 2005 at 3:47 PM / IP Logged

I have read somewhere on this site to not stack crossovers. I'm not sure why though.

Also, tcss, what makes an active crossover good or bad?

WTB: Black Leather Acura GSR seats

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mrmsudawgs

Copper - Posts: 145

Joined: February 22, 2005

Location: United States

Posted: March 22, 2005 at 4:40 PM / IP Logged

I have an Alpine CDA-9831. I set the cross-overs on the HU to zero and used the amp's (Polk Carbon C400.4) because it had a variable cross-over. The HU had a selectable cross-over (two or three points you can select). I felt the amp's cross-over gave me more and finer tuning options.

Mike

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Bought my first alpine hu. Quick question

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