.:HSTuners::

V8killimports · 12-25-2005, 11:11 AM

Can someone help me with car audio mumbo jumbo? I am looking at both the Alpine CDA-9851 and 9855 for my car and besides the display, number of colors and all that bullshitm the biggest difference are the preouts. Both have front, rear and sub preouts, but the 9851 is at 2v as opposed to the 9855 at 4v. I read and the difference is more volts means more crisp sound at higher volumes.. is there really that much difference? Is it worth $100 more?

IALuder · 12-25-2005, 12:36 PM

imo no. but it all depends on what size speakers the unit is hooked up to.

V8killimports · 12-25-2005, 01:18 PM

All I am hooking up to it, is this amp:

JBL PX300.4
PX SERIES 4 CHANNEL AMPLIFIER
$245.99

Infinity Kappa Perfect 10" Sub
Infinity Kappa Perfect 5.25 Component with 1" Tweeters

AkimboStylee · 12-25-2005, 03:00 PM

9855.
and get 2 seperate amps, one for the sub(preferably a mono block amp). and one for the speakers.

Wren57 · 12-25-2005, 04:21 PM

don't skimp on the head unit... you will be dissapointed.

nonovurbizniz · 12-25-2005, 07:05 PM

yeah higher voltage outputs mean the amp needs to do less work and it's off the bat louder and clearer.

DEFINATELY get the 4v outputs... those used to be ONLY available on REALLY high quality headunits...

IF you're not set on alpine look into other headunits with 4v outputs that aren't as expensive but generally they're worth the money IMO.

AkimboStylee · 12-25-2005, 07:44 PM

pioneer premier, kenwood excellon, and a few panasonic decks have them (mine has 4 volt preouts, and it also has front, rear, sub, aux1, aux2,and sirrius)

V8killimports · 12-25-2005, 08:34 PM

Thanks .. I will only use alpine.. don't like anything else really..

Also, why do I need TWO amps now? I only have 5 speakers for god's sake.. that amp above won't do it??

Wren57 · 12-25-2005, 08:51 PM

mutli-channel amps are made for speakers
mono-channel amps are made for subwoofers

the sub won't sound as good with an amp that isn't designed to power it...

12-25-2005, 11:11 AM	#1
V8killimports Registered User Join Date: Sep 2002 Location: Beale AFB, CA Posts: 1,377	Alpine CDA9851 vs CDA9855 Can someone help me with car audio mumbo jumbo? I am looking at both the Alpine CDA-9851 and 9855 for my car and besides the display, number of colors and all that bullshitm the biggest difference are the preouts. Both have front, rear and sub preouts, but the 9851 is at 2v as opposed to the 9855 at 4v. I read and the difference is more volts means more crisp sound at higher volumes.. is there really that much difference? Is it worth $100 more?

12-25-2005, 12:36 PM	#2
IALuder Registered User Join Date: Sep 2003 Location: Des Moines IA Age: 39 Posts: 7,908	imo no. but it all depends on what size speakers the unit is hooked up to. __________________ 93 Si H23vtec......soon to be 12lbs 95 Civic EX....automatic DD if you cant dazzle them with your brillance, baffle them with your bullshit.

12-25-2005, 03:00 PM	#4
AkimboStylee Registered User Join Date: Aug 2002 Location: The Bay which holds no water, Palm Bay, Fl Age: 40 Posts: 1,688	9855. and get 2 seperate amps, one for the sub(preferably a mono block amp). and one for the speakers. __________________ A very good quote : " I have many vices in my life, and those keep me from perfection, and not being perfect makes me a human being with morals" -Anonymous

12-25-2005, 04:21 PM	#5
Wren57 Registered User Join Date: Feb 2002 Age: 40 Posts: 2,856	don't skimp on the head unit... you will be dissapointed. __________________ yeah, its that big

12-25-2005, 07:05 PM	#6
nonovurbizniz Registered User Join Date: Jul 2002 Location: ECUSA Age: 48 Posts: 2,693	yeah higher voltage outputs mean the amp needs to do less work and it's off the bat louder and clearer. DEFINATELY get the 4v outputs... those used to be ONLY available on REALLY high quality headunits... IF you're not set on alpine look into other headunits with 4v outputs that aren't as expensive but generally they're worth the money IMO. __________________ I am an A$$hole... take anything I say to heart at YOUR OWN RISK...

12-25-2005, 01:18 PM	#3
V8killimports Registered User Join Date: Sep 2002 Location: Beale AFB, CA Posts: 1,377	All I am hooking up to it, is this amp: JBL PX300.4 PX SERIES 4 CHANNEL AMPLIFIER $245.99 Infinity Kappa Perfect 10" Sub Infinity Kappa Perfect 5.25 Component with 1" Tweeters

12-25-2005, 07:44 PM	#7
AkimboStylee Registered User Join Date: Aug 2002 Location: The Bay which holds no water, Palm Bay, Fl Age: 40 Posts: 1,688	pioneer premier, kenwood excellon, and a few panasonic decks have them (mine has 4 volt preouts, and it also has front, rear, sub, aux1, aux2,and sirrius) __________________ A very good quote : " I have many vices in my life, and those keep me from perfection, and not being perfect makes me a human being with morals" -Anonymous

12-25-2005, 08:34 PM	#8
V8killimports Registered User Join Date: Sep 2002 Location: Beale AFB, CA Posts: 1,377	Thanks .. I will only use alpine.. don't like anything else really.. Also, why do I need TWO amps now? I only have 5 speakers for god's sake.. that amp above won't do it??

12-25-2005, 08:51 PM	#9
Wren57 Registered User Join Date: Feb 2002 Age: 40 Posts: 2,856	mutli-channel amps are made for speakers mono-channel amps are made for subwoofers the sub won't sound as good with an amp that isn't designed to power it... __________________ yeah, its that big

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