planning sound system upgrade, 03 g35

I'm new to the forum and have been spending a lot of time reading the threads here on the site. Anyway, based on the research I've done, here's my game plan for upgrading my OEM sound system. Right now I've got a 2003 Infiniti G35 coupe with the Bose amplifier/OEM speakers. I replaced the HU with an Eclipse AVN5435 three years ago. It's been working great. But now I'd like to upgrade my sound system even more, bit-by-bit. I've ordered a complete set of Infinity Kappa speakers to replace every OEM speaker in the car right now. I chose the Kappas largely because the OEM Bose amp runs at 2 ohms and I needed 2-ohm speakers to match up. In addition, I've heard them and like the way they sound. Anyway, here's what I ordered: *Front doors: Infinity Kappa 60.9cs component speakers (w/ tweeter) *Rear sides: Infinity Kappa 62.9i 6.5" speakers *Rear deck: Infinity Kappa 692.9i 6"x9" 2-way speakers For now I'll just utilize the OEM speaker wiring coming from the Eclipse HU. In the future, however, I'm going to want to get an amplifier and a subwoofer to round out the system. As for the amplifier, I'm targeting the Alpine PDX-5 (5-channel). I plan to run my front Kappa component speakers of two of the channels (75wx2@2ohms). I'll also run my Kappa 6x9's off two more channels (75wx2@2ohms). I can then run a sub (300wx1@4ohms) of the remaining channel. I was looking hard at the JL Audio Stealthbox (10" W1v2 subwoofer) for the G35 coupe so it'll sit tucked away. I have very limited trunk space and would like to preserve it if at all possible. The woofer in that Stealthbox is rated from 75-300w, I believe, so would it work well with that amp? Lastly, I really don't want to run more than one amp since my car's space is very limited. That said, I am planning to power the Kappa 62.9i 6.5" rear side speakers using the factory wiring directly from the Eclipse HU. I've read that those speakers are really just for "filler" noise, especially considering I hardly ever have anyone in the back seat. My goals with this system are to provide a completely upgraded sound system that will create a dynamic audio experience inside the cabin. I am not into excessive bass, and just want a little punch to match up with the other upgraded speakers that will be putting out more power. Does this sound like a good approach? I welcome your comments/advice.

Instead of the Alpine PDX-5, what do you guys think of maybe using the Polk PA1100.5 instead? http://www.polkaudio.com/caraudio/pa/index.php?s=overview#pa1100_5

Stay away from the polk amp, stick with the alpine, The rest of your setup sounds decent im not a big fan of infinity products though.Nothing bad about them I just feel like there are so many better products out there in that price range. mb quart, alpine, jl audio etc.-A vision without a plan is just a hallucination-

spmpdr wrote: Stay away from the polk amp, stick with the alpine, The rest of your setup sounds decent im not a big fan of infinity products though.Nothing bad about them I just feel like there are so many better products out there in that price range. mb quart, alpine, jl audio etc.

I've heard that some are saying the Alpine lacks punch. But at the same time I'm not really trying to blow my doors off! My goals are pretty modest, actually. And I know Alpine makes high quality products. Do you have any personal experience with Polk amps?

No I don't have personal experience with Polk amps,but I have owned several alpine amps and never been disappointed. I do have experience with there speakers and was not very impressed.I just believe when it comes to amps reliability and longevity are more important than overall power because if the amp doesn't work then there is no power. Also I would be willing to bet alpine outperforms polk hands down.-A vision without a plan is just a hallucination-

What do you think of the JL Audio HD Series amps? I could stack a set of those to get my 5 channels... http://www.audiojunkies.com/blog/966/jl-audios-new-hd-amplifiers

Now your talking jl audio is a great ,reliable brand. what amps are you thinking of going with? perhaps a 4 channel and a monoblock?-A vision without a plan is just a hallucination-

spmpdr wrote: Now your talking jl audio is a great ,reliable brand. what amps are you thinking of going with? perhaps a 4 channel and a monoblock?

Yeah, precisely. I think I might be able to stack those puppies right where my OEM Bose amp sits. They're tiny!

If it were my setup I would run the front components off two channels of the four channel amp and the 6x9s off the other two channels run. run the rear door speakers off the deck and leave them stock, (if your not going to amp them then no need to spend extra money on after market speaker). Then use the monoblock for the sub of course. the rear door speakers and maybe even the 6x9s might throw your sound off,but i think if you amp the 6x9s it should sound fine.-A vision without a plan is just a hallucination-

Yeah I think I'm definitely getting those JL Audio HD amps. For now I'll get the 600 for the four main channels and pair it up with the 750 monoblock for my woofer. I'll run one 10" woofer in a 4080 driver-side enclosure for now and if I don't feel I'm getting enough ummph, I'll add another 10" on the passenger side. I'm assuming I'd need another (monoblock) amp to power a second 10" woofer, right?

spmpdr wrote: If it were my setup I would run the front components off two channels of the four channel amp and the 6x9s off the other two channels run. run the rear door speakers off the deck and leave them stock, (if your not going to amp them then no need to spend extra money on after market speaker). Then use the monoblock for the sub of course. the rear door speakers and maybe even the 6x9s might throw your sound off,but i think if you amp the 6x9s it should sound fine.