Go Back   986 Forum - for Porsche Boxster & Cayman Owners > Porsche Boxster & Cayman Forums > Boxster General Discussions

Reply
 
LinkBack Thread Tools Display Modes
Old 03-21-2007, 03:34 PM   #1
Registered User
 
Join Date: Jan 2007
Location: Alabama
Posts: 128
Rear speakers - How do I know if my amp is 6 ch.

I have a 2002 Box with CDR-220 and Sport Package (includes rear storage box).

I've seen several threads about rear speakers and rear speaker upgrades - how do I know if I already have the appropriate amp?

Thanks
__________________
2003 Audi A4 Avant 3.0/6MT - Orient Blue/Beige
2002 Porsche Boxster 5spd - Seal Gray/Black
1990 BMW 325i (convertible) 5spd - Red/Beige/Black Top
larryshomework is offline   Reply With Quote
Old 03-21-2007, 04:24 PM   #2
Registered User
 
Join Date: Sep 2005
Location: Tn
Posts: 42
The amp you have probably does not matter. Most of the aftermarket rear speaker kits plug into the head unit.

Although there are 6 channel amps available, most Boxsters don't have that option. You could get one off of the auction site. Not a major modification required to make it work in your car.

Getting the rear speaker power from the head unit provides enough power to give your sound system enough of the fill needed to make your stero acceptable for top down, wind in your hair, permagrin experience.

Most of use just listen to the pleasures of driving this car.

John
szentej is offline   Reply With Quote
Old 03-21-2007, 04:38 PM   #3
Registered User
 
husker boxster's Avatar
 
Join Date: Sep 2006
Location: Omaha
Posts: 2,203
If no one else has a better way to ID it without digging out tools, you can always remove 2 bolts and look at the rear panel of the amp. It will say 4x60 or 6x60. The first number indicates the number of channels. If you have a 4 chl, the rear spkrs are running from the radio. You will need to look at your amp anyway if you find you are a 4 chl and want to upgrade to a 6. There are 3 versions of amps (Bose, Harman, Haes) that could be used and you want to be sure to get the same version that's already in your Box. You can read the version without having to remove bolts (just can't see the # of chls). The amp is located between the spare tire and battery cover in the front compartment.
__________________
PCA National HPDE Instructor
2008 Boxster S Limited Edition #005
2007 Cayman S - SOLD on Valentine's Day 2013
2008 Cayman S Sport - Signal Green

Last edited by husker boxster; 03-21-2007 at 04:49 PM.
husker boxster is offline   Reply With Quote
Old 03-21-2007, 05:23 PM   #4
Registered User
 
Join Date: Jan 2007
Location: Alabama
Posts: 128
I didn't realize the kits would work with the 4 channel.

I have noticed that my head unit has a fader --- when changing the bias towards the rear, the sound goes away --- I assume that means it's trying to send signal but there is no speaker to receive it.
__________________
2003 Audi A4 Avant 3.0/6MT - Orient Blue/Beige
2002 Porsche Boxster 5spd - Seal Gray/Black
1990 BMW 325i (convertible) 5spd - Red/Beige/Black Top
larryshomework is offline   Reply With Quote
Old 03-21-2007, 05:54 PM   #5
Registered User
 
Join Date: May 2002
Location: San Jose
Posts: 1,889
First there was DSP in 1999. That had a 6 channel amp.

In 2002 DPS was replaced by Bose, another 6 channel amp piggy back.

In 2003 Porsche went to MOST, another 6 channel amp.

A 2002 with the standard amp and 220 radio will be 4 channel.

This is from my 8 years of failing memory.
Tool Pants is offline   Reply With Quote
Old 03-21-2007, 06:04 PM   #6
Registered User
 
husker boxster's Avatar
 
Join Date: Sep 2006
Location: Omaha
Posts: 2,203
Larry,
Do you have speaker grills or cubby holes in the corners of your rear shelf compartment? If you have cubby holes, you do not have rear speakers.
Terry
__________________
PCA National HPDE Instructor
2008 Boxster S Limited Edition #005
2007 Cayman S - SOLD on Valentine's Day 2013
2008 Cayman S Sport - Signal Green
husker boxster is offline   Reply With Quote
Old 03-22-2007, 02:04 PM   #7
Registered User
 
Join Date: Jan 2007
Location: Alabama
Posts: 128
Quote:
Originally Posted by husker boxster
Larry,
Do you have speaker grills or cubby holes in the corners of your rear shelf compartment? If you have cubby holes, you do not have rear speakers.
Terry
I definitely know that I don't have the rear speakers - I was just under the impression that you needed the 6 channel for a rear speaker install. From all I can tell now, my car is compatible with the rear speaker kit.

__________________
2003 Audi A4 Avant 3.0/6MT - Orient Blue/Beige
2002 Porsche Boxster 5spd - Seal Gray/Black
1990 BMW 325i (convertible) 5spd - Red/Beige/Black Top
larryshomework is offline   Reply With Quote
Old 03-22-2007, 02:23 PM   #8
Registered User
 
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Hi,

If you have the M490 option (Speakers in Dash and Doors) vs the M441 Option (Dash speakers only - does anyone have this?), you have two amplifiers in the car.

The first is on the Radio Chassis itself which is 4 X 18 Watts. The second is the external Amp mounted under the Front Hood which is a (Swedish) HAES Verstarker - 4 X 40 Watts.

When adding the Rear Speakers on MY older than 2003, you are connecting to the Amplifier on the Radio Chassis. So your Dash and Door Speakers are powered by the external Amplifier and the Rear Speakers are powered by the Radio's own internal Amplifier. All connections for the Rear Speaker kit go to the Radio chassis.

On MY '03 and higher, you connect the Rear Speakers through the firewall and into the external Amplifier under the Hood. Source: Porsche TSB Group 9, #0301 9142 date: 8/22/03 Hope this helps...

Happy Motoring!... Jim'99

Last edited by MNBoxster; 03-22-2007 at 02:41 PM.
MNBoxster is offline   Reply With Quote
Old 03-22-2007, 02:27 PM   #9
Registered User
 
Join Date: Jan 2007
Location: Alabama
Posts: 128
Interesting - so since I have M490 - is the amp in the radio/headunit currently powering anything - or is it more of a preamp for the external amp? (as noted above, I currently do not have rear speakers)
__________________
2003 Audi A4 Avant 3.0/6MT - Orient Blue/Beige
2002 Porsche Boxster 5spd - Seal Gray/Black
1990 BMW 325i (convertible) 5spd - Red/Beige/Black Top
larryshomework is offline   Reply With Quote
Old 03-22-2007, 02:31 PM   #10
Registered User
 
Join Date: Sep 2005
Location: Minneapolis/St. Paul, Minnesota, USA
Posts: 3,308
Quote:
Originally Posted by larryshomework
Interesting - so since I have M490 - is the amp in the radio/headunit currently powering anything - or is it more of a preamp for the external amp? (as noted above, I currently do not have rear speakers)
Hi,

Probably not doing a thing. You have a wiring harness with the kit and this just plugs into an open dock on the Radio Chassis...

Happy Motoring!... Jim'99
MNBoxster is offline   Reply With Quote
Old 03-22-2007, 02:45 PM   #11
Registered User
 
husker boxster's Avatar
 
Join Date: Sep 2006
Location: Omaha
Posts: 2,203
If you are planning on adding rears, you have 2 choices - an OEM kit and one named PNP. The PNP has better speakers but I found this out after I bought the OEM. Contact Harvey at harveypnp@comcast.net for details. Prices for either are in the $250-265 range. I luckily bought my OEMs for $200 on an ************************************************************ closeout. As MN said, you will need to connect them to the radio. They will fill out the interior sound but won't knock your socks off.

Once you've had them in for a while, be prepared for the next mod -- that 6 chl amp you were originally asking about. Mine is in the mail. This amp will allow you to run the rears with MORE POWER.
__________________
PCA National HPDE Instructor
2008 Boxster S Limited Edition #005
2007 Cayman S - SOLD on Valentine's Day 2013
2008 Cayman S Sport - Signal Green
husker boxster is offline   Reply With Quote
Old 03-23-2007, 12:12 AM   #12
ehD
Registered User
 
Join Date: Feb 2007
Location: rowland hts
Posts: 79
man i cant believe these dinky rear speakers go for 250 on ebay.. sigh the cost of customization
ehD 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -8. The time now is 04:34 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2019, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO 3.6.0
Copyright 2018 Pelican Parts, LLC - Posts may be archived for display on the Pelican Parts Website -    DMCA Registered Agent Contact Page