I'm not sure if you guys know anything about car audio system but I'll just ask anyway . I'm thinking of replacing the stock speakers on my Nissan Altima 2009 , My car does NOT have the premium Bose sound system so the sound quality is not that good . A local store has a good deal on 2 of these JBL speakers along with JBL 1000w Sub . I'm thinking of installing those on the driver side/passenger side doors and I'm thinking of getting 2 more of these speakers to replace the back seat dash speakers as well as getting a 2 way channel pioneer amp they have on sale . My question:

1) will i notice a big difference in audio clarity/quality from stock speakers ?

2) knowing that i will get an amp , do i have to replace the stock head unit/radio ?

3) Should i install the extra 2 speakers in back seat doors or dash ?

4) is it necessary to repalce front dash / back seat doors speakers along with those ?

Thanks in advance .

ultrapc

gagit811 has a lot of good suggestions, but I'm going to offer a bit of a different viewpoint, and maybe save you a few bucks along the way.

To start, your front doors fit a 6.5" speaker, not the 6 x 9" JBL you listed. They will not fit in the stock location. Skip the sale on those speakers and find a nice pair of 6.5" component speakers (components have a separate woofer and tweeter, as well as a dedicated crossover). Component speakers offer significantly better sound.

Start by visiting Crutchfield.com. Crutchfield has decades of experience in custom car audio, they'll provide Master Sheets for your car that will guide you through the installation process, and they offer lifetime phone support, so you can just call them to ask questions if you get stuck (and they're good). Specifically to answer your questions:

1. Aftermarket speakers will offer a huge improvement over stock in almost any vehicle, even those with "premium" sound systems already installed. I would argue that replacing the speakers is a better upgrade than replacing the head unit if you had to pick, but ideally you want to replace both at the same time.
2. If you're getting an amp you need to either replace the factory head unit or get a special processor for your head unit, the latter of which is very expensive. By installing an aftermarket radio you will lose steering wheel controls in most instances, if you have them; a Crutchfield support member can walk you through that. Some aftermarket radios can actually be programmed to work with factory controls, if you buy the right module. You'll have to check.
3. Ignore the rear speakers. In fact, disconnect them. Rear speakers muddy your soundstage. At home you only use rear speakers for surround effects, and in a car where you're just listening to music they're not necessary. Serious IASCA and USAC (USAC no longer exists, but used to be an auto sound competition provider) SQ (sound quality) competitors rarely use a pair of speakers in the back. Focus on a quality pair of component speakers in the front and a great sub, and you'll have an excellent sounding system.
4. I believe my prior response should answer your fourth question.

In addition, I would suggest either a high-quality three-channel amplifier, or two amplifiers: A two-channel for your front speakers and a mono amp for your subwoofer. You do not need a Double-DIN head unit unless you want the larger screen, which is fine, but a $200 JVC head unit will have high-quality preamp outputs and all the features you want in a single-DIN installation without a fancy monitor. It depends on what you want.

I hope this is helpful. I'm a former MECP-certified installer and db Drag competitor, and happy to offer additional advice if you have further questions.

Good luck!

Boz

Here's what you do, call Crutchfield (888.955.6000) and talk to a rep about the Alpine MRP-F300. It's $150 and includes a free amp wiring kit. It does not include speaker wire and a decent four-channel RCA cable, which you can get within your budget here:

• (2) 25 ft RCA Cables
• (1) 100 ft spool of 16 AWG speaker wire (better too much than too little)

It's a good price on a nice, entry-level amp considering it includes the wiring kit and Crutchfield tech support (I cannot emphasize how nice having the customer service can be, not to mention the free install sheets for your vehicle). It'll get you some thump, and make your existing speakers sound much, much better.

Good luck,

Boz

Could you guys point me into the direction of a good quality amp?Eastdabest

1. What head unit are you using (model number if possible)?
2. How many speakers do you want to amplify?
3. Are you going to want to add a subwoofer in the future?
4. You will need to do some significant wiring to install an amplifier, including running wires from the battery through your firewall, and speaker wire from your amplifier to the speakers in your door and deck. Are you comfortable performing this work on your car?
5. What is your budget? A value (meaning a good amp at a good price) four-channel amp, like a Kenwood Excelon or Infinity, can range from $150 to $300, not including the wiring kit. A high-quality amp like an Alpine PDX will be closer to $400 or more, retail.

With this I should be able to give you some recommendations.

Happy gaming,

Boz

if i decide to go with headphones to get best value and sound for my money how can i solve my problem that i cant hear people when there is lots of action going on when mic?

Cow_tipping

I can recommend you from one of the "best Xbox headsets" (link removed) as of 2012, it's Tritton TRIAX-180 AX 180 Stereo Gaming Headset. A multi-task headset capable for PC/Mac & With Chat And Wii (Audio Only), PS3 & PlayStation, and of course Xbox 360! johnmalone

i think i might try the astro a40 since i can pick them up at a local best buy and try them

the pc360 i would have to order online and wait for them to arrive before i can test them out

Cow_tipping