I'm new to the G and I believe my firt two mods will be sway and speakers. I understand you can drop in kappa's fairly easily, how noticable is the difference? Did you guy replace the bose amp? I'm fairly happy with the factory sub, so I do not want to rip out more than necessary. I tend to agree the imaging (highs) lack clarity. Any advice would be appreciated.

Thanks

 

Hey man,
I'm also new to a G, but what i learned by browsing thru old threads, is that bose dont go well along with aftermarket parts. it would be better to get a mono amp just for the sub alone.

hope that helps,

 

Thanks, what I'm trying to find out was how much of a difference does just replacing the door speakers with kappas make?

 

You will hear some improvements with kappas, but I guess you may just change a capacitor and have same results

 

I changed out my front Bose speakers with Kappa's and it made HUGE difference. Search on ebay for the best price. I bought the front components and rear coax speakers for $255 shipped. I haven't installed the rears yet. They are the perfect speaker upgrade for the Bose systems because they are 2ohm which is what the Bose speakers are. I partly agree with Manbir Sandhu, get a mono amp and subwoofer, BUT in addition to the Kappa's. Adding a JL Audio 250/1 mono amp and a JL 10W1v2 sub in a 4080 box would certainly make your system come alive. Do a search for 4080 subwoofer box if you're not familiar with it. Only one word....AWESOME!!!

 

Thanks. I'd like to get the front a rears and check them out. If I still want more I might change the amp to a 5 channel alpine and add a sub. Did you change the speakers? If so was if hard, how difficult are the door panel to remove & did you use spacers ?

Again Thanks

 

I just like to add another question to the thread, i looked thru older threads, but most the info i found was for coupes....
In Sedans, whats the size of front, rear speakers and tweeker size? I bought rockford amp/sub but i ended up selling it to my friend. So i'm going to start buying fresh and this time i'm going to take my time since i'm in no rush since the car is stored inside...
Other question is, whats the wattage on bose speakers so when i do wanna upgrade i can then carry on from there.

Btw ur saying JL Audio 250/1 would be a good choice, but what about Rockford P6001BD? will that be good for powering up 2 12" rockford subs? And which wattage should i look at for subs?
Thanks,
Manbir

 

I have a 5ch Alpine amp now (MRV-F450) and it works very well. I did change out the components, but haven't had time to do the rears yet. It wasn't that hard at all. There are plenty of threads on here showing how to change out the speakers. You will need to either buy or build 1" mdf spacers for the fronts so the face of the speakers sit flush with the door panel. Here's a few links for you.

Door panel removal DIY

Spacers

 

I have a coupe, but I believe the sedans have 6.5" components in the front and 6.5" coax speakers in the rear door. The tweeter is the same. I'm not sure of the Bose speaker specs except that they are 2ohm.

I suggested the JL 250/1 w/ JL 10w1v2 to give you nice decent bass, but you can go with whatever you like. Just depends on how much and what type of bass you want. If you go with 2 12" subs, then I think the P6001BD will work fine. This setup will obviously give you heavier and deeper bass than 1 10" sub will.

 

Manbir_Sandhu, in Sedan (I also have 05 G35 Sedan) you have 6.5" components in front, and 6.5" coaxial in rear doors. The sub in the back is a 8" sub. There are no 6x9" speakers, as there are in the coupe.

 

I installed Kappas all around in my sedan. Took a total of 2 hours to install. Hardest part was to find a way to install the tweeters. The early G35s came with the bose speaker seperate from the spacer. So I used the stock white spacer to install the front speakers. Sounds awesome compared to bose alot more bass up front. Would sound a lot better if you use an aftermarket amp.

 

Is that where your spacer came from? I've got an 05 and I have no had the door panel off yet. I asuuming i will need to buy some spacers?