Hey everyone,

I am putting a system into my car (alpine media centre h/u, pioneer amps/subs) and I was wondering, should I upgrade the speakers that are in my car aswell, or are the stockies fine? I have a VX Commodore Lumina. The speakers seem great at the moment with the stock eurovox cd player, but I don't know how they will go when hooked up to an aftermarket h/u.

Any information is greatly appreciated

Thanks

Yes, it is well worth upgrading at least the front speakers to a decent split system.

However, be aware that you will want to properly deaden your doors with dynamat/etc as without sealing them up properly, the midrange and upper bass will be 'sucked out' by destructive interference coming from the back of the woofer and through the door panels. This is less of an issue with the stock speakers as they are quite strong in the midrange/upper bass (although the quality of said midrange and upper bass is quite atrocious IMO).

Also if the speakers are the same as in the VY, they'll only be 15WRMS, so be careful you don't blow them up with your new HU

They'll sound better with an aftermarket headunit. If your running subs get some front speakers as well, the stocks won't be able to compete.

Yeah, deaden your doors and get new speakers. I blew one of the stock ones in mine with an 18w pioneer HU amp. Even a pair of $150ish coax will handle a lot more and sound SO much better in the upper midrange. If you're up to the task, I highly recommend dynamatting the doors the way I did. Even the stocks were able to give me some half decent kidney punch (before I blew one of them ):

1. Clean all of the inner and outer door skin with wax and grease remover. You WILL cut your hands, just deal with the pain.
2. Two layers of dynamat extreme on the outer door skin behind the speaker, all the way along and up to the intrusion bar.
3. one layer above the intrusion bar. This part is hard to do and you can barely see what you're doing, but ty to get at least 90% coverage.
4. Cut MDF to fit all 3 access holes in your door. They need to be flush or you won't fit your trim back on. I used 12mm MDF. Also make sure the piece of MDF that sits over the opening rod allows the rod to still move. read the deadening tutorial to find out how to affix the pieces properly (ie. duct tape en masse)
5. Dynamat the ENTIRE inner skin, including over the MDf panels and under the speaker pods (Maybe even 2 layers there and around the speaker area if you want). Make sure you leave a gap where the rods are and put screws into your screw holes as soon as you've matted them so you don't forget where they are.
6. The only holes you should now have in your speaker enclosure is a small one where the opening rod goes behind the mdf panel, and some tiny drain holes down the bottom. The punch and general midbass is simply amazing. If you have some money down the track duplicate your pods with mdf/fg versions, rather than the crummy plastic stocks, and also eventually fix some dense but relatively thin foam (closed cell) to the entire inside of the door trim.

Pretty much as good as it can get.

My cousin who changed his VX commodore Headunit to an Eclipse CD3000 from the stocko and it sounded significantly better. (This was prior to fitting the Boston Pro's and Audison amplification)

One of his mates even said one night, man your stereo sounds awesome!! That was with 3 of the 4 stock speakers going (front right one was removed as we were in the process of SD'ing that door)


If you think they sound great off the Eurovox, you sound like you dont have a keen ear for SQ