I am planning to upgrade my factory stereo, I have a 2004 Porsche 911 carrerra 4S convertible. I already purchased:
- 2 sets of Polk Audio SR5250 Component speakers for the front & rear
- 1 set of Polk Audio SR6500 Component speakers for the doors
- 1 pair of 10" Digital Designs 2510 subwoofers
- 1 pair of 10" JL Audio 10W7 subwoofers
I will only use one pair of subwoofers, but have not decided on the one.
Subwoofers will we installed in the rear footwells.
I will use Pioneer AVIC-X920BT as Head Unit

I am having a hard time selecting an amp to run my set up, please help by making suggestions.
I considered the Cadence ZRS-C8 because it's a 5 channel with lots of power and I wouldn't have to run 2 amps, and it only cost $449, I also considered 1 Alpine 4.150 + 1 Alpine 2.150 for the components and getting either a JL or DD amp for the subs.
I'll be buying the amps used and would like to spend around $500

Please advise
Thx

 

I have the alpine for my three way component and i am not the sound compared to my previous JL amp. output from alpine amp is not as loud...nor crisp compared to JL.

 

I have an Alpine PDX-5 which works for me. I kept the factory bose speakers.
I really like the way it fits on the little shelf. Also, Its a shame to hide it in the trunk, the blue lights a great when its on.

 

I have an amp rack with 2 focal amps on it...

 

What's the rest of your set up?
Speakers, head unit...
amps models...

 

You didn't add a sub-woofer? kept all the stock speakers? what can you say the difference in sound is?

 

The bose system in my car has a sub on the front passenger side of the tranny tunnel. Connected the dash and doors to one pair, rear to the other pair and the sub. I think it really sounds great, but it would probably sound better with new speakers. Used a Pioneer AVIC-700bt refurb from ebay for the head unit. Currently the AVIC went kaput, so am replacing it with a Kenwood per my installers recommendation. Have bought many great refurb's in past, so I guess they finally caught up to me.

 

FOCAL 100KR Fronts 130KR Rears(w/adapter) 13KS Subs in doors,Focal 4.75 and 5.500 Amp

The Focal 4.75 is briged into 2 channels to power the 13ks in the doors....the 5.500 powers the 4 channels for the dash and rears and the 5th channel is not currently in use, i am building the box now. it has 2 JL 6.5in subs in it

 

When changing the rear speakers with Focal 130 KR, what adapter did you use? Could you also tell me where you got it?

Thanks in Advance!

 

PM sent!

 

That's interesting. Please tell us where you can get the speaker adapters. Greetz Anthony