Welcome to the North American Subaru Impreza Owners Club Monday April 15, 2024
Home Forums Images WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC General > Car Audio, Video & Security

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.







* As an Amazon Associate I earn from qualifying purchases. 
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 11-03-2003, 12:48 AM   #1
Uber Wagon
Scooby Newbie
 
Member#: 39600
Join Date: Jul 2003
Chapter/Region: RMIC
Location: Boulder, CO USA
Vehicle:
2008 STi
Dark Grey Metallic

Default Is it possible to bridge 4 channels of sound into 2 for more total power?

I only plan on installing 6.5" components in the front of my STi with no rears or subwoofer. Therefore I was hoping I could bridge a standard 4 channel HU and avoid having to purchase an amplifier.

FWIW, I am looking at an Alpine 9805, 9807, or 9813 and using Reference 6000cs for speakers.

Anyone do this before? Let me know what you think.

-Nick
* Registered users of the site do not see these ads.
Uber Wagon is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-03-2003, 01:21 AM   #2
surfer.tech
Scooby Specialist
 
Member#: 39842
Join Date: Jul 2003
Vehicle:
2003 WRX wannabe

Default

no man you cant brigde the HU.. your goin to need a seperate amp.. plus itll sound sooooo much better
surfer.tech is offline   Reply With Quote
Old 11-03-2003, 05:07 PM   #3
Uber Wagon
Scooby Newbie
 
Member#: 39600
Join Date: Jul 2003
Chapter/Region: RMIC
Location: Boulder, CO USA
Vehicle:
2008 STi
Dark Grey Metallic

Default

O.k. thanks.
Uber Wagon is offline   Reply With Quote
Old 11-03-2003, 06:02 PM   #4
Legacy
Scooby Specialist
 
Member#: 10188
Join Date: Sep 2001
Location: Ottawa
Vehicle:
2007 Forester XT

Default

I'll go one further , bad idea & you'll damage the HU in a day. I have the 9815 myself which is very simular to the 9813. My biggest complaint is they did away with a POWER button and you have to hold the SOURCE button for 4 seconds to power it off. Very bad idea when you need ot turn the stereo off in a hurry. Yes you can just turn down the volume but in an emergency I like to kill the power to the deck in an instant.

Why don't you try to start out with powering the speakers from the front channels of the HU. Its not going to be awe inspiring but it may just be enough for you. That said, having an external amp, nearly any amp will be an improvement over the HU as in reality its about 7 watts rms x 4.
Legacy is offline   Reply With Quote
Old 11-03-2003, 06:33 PM   #5
Uber Wagon
Scooby Newbie
 
Member#: 39600
Join Date: Jul 2003
Chapter/Region: RMIC
Location: Boulder, CO USA
Vehicle:
2008 STi
Dark Grey Metallic

Default

Legacy,

Thanks for the additional feedback on bridging the HU, just thought I would throw it out there.

The power loss you are indicating from a non amped headunit seems really high. The alpine units I am looking at all are rated at 23W rms x 4. That seemed high enough to power component speakers in the front, but if loss through wiring and connectors are that bad then maybe not.

Care to comment?
Uber Wagon is offline   Reply With Quote
Old 11-03-2003, 07:05 PM   #6
Legacy
Scooby Specialist
 
Member#: 10188
Join Date: Sep 2001
Location: Ottawa
Vehicle:
2007 Forester XT

Default

No probs, I believe my Alpine is rated for the same power , all the HU manufacturers tend to be VERY optimistic with the output of their decks. To keep things in perspective. A CD deck is about 10 inches long and 7 inches wide. Inside there's the cd player ,its motor and all the mechanisms. Then you've got the ciricuitry for the radio etc.. How much room do you think is in there for the amplifier ? Compare that to say an older RF Punch 30 rated for 15 x 2, the amp is about 8x5 inches.... now it doesn't seem quite possible that you could cram this amp inside an HU does it ?

To address your other concern I don't think you're going to loose a significant amount of power through the wiring, its more the power isn't there to begin with. What I would suggest is you go to your Alpine dealer with the deck you have in mind. Make sure its not playing through an outboard amp and see if gets loud enough for you. Don't forget that a car has road noise, rumbling tires, reving motor so you'll loose a bit of volume with the background noise.
Legacy is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Is it possible to swap an 04 STi console into an 02 WRX? adrive43 Interior & Exterior Modification 21 07-17-2009 04:36 PM
winTV(watching tv on pc), is it possible to watch other channels like overseas? enozto Off-Topic 0 08-31-2005 08:33 AM
Is it possible to change the date of an e-mail? GooseMan Off-Topic 5 02-17-2004 11:30 AM
Is it possible to get the benefits of a lighter crank pulley without the negatives? Schleppy Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 34 07-02-2003 01:44 AM
Is it possible to fit 4 16inch rims w/tires in wrx? PaulRex Tri-State Area Forum 18 12-29-2002 11:34 PM

All times are GMT -4. The time now is 07:43 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2024 Axivo Inc.
Copyright ©1999 - 2019, North American Subaru Impreza Owners Club, Inc.

As an Amazon Associate I earn from qualifying purchases.

When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.