Now Speaker.....

[S11EPS]

I would look at spending a good chunk of my cash on a quality 4 channel amplifier.

Use two channels to amplify you new front component speakers (Mid range and tweeters) and bridge the remaining two channels to create a single channel to power your new sub.

Any rear speakers you choose to run can be powered via your headunit. This will give you a nice, clear, front-biased system.

You can use the amplifer, your headunit or an inducter to filter out everything above 100-ish Hz to ensure your sub is only reproducing the lows.

You can then filter out this low stuff from all your other speakers, thus making sure they're only reproducing stuff they're truly capable of and
operating at maximum efficiency.

If you have more money to spend, go for a dual amp system. Buy a good quality 2 channel amp (Genesis stuff is very nice, good signal to noise ratio) for your front door components and a Class D amp for you sub. These are very efficient and make maximum use of the current available, but the power isn't very 'clean' (ie lower signal to noise ratio) so they're ideally suited to low frequncy stuff, as the dip in quality won't affect sub performance.

Everyone is gonna have different ideas about what sounds good, and what should be done, this is just my view of a good system starter system (first one) and a very nice system with plenty of upgrade paths, as long as the budget allows (second one). Do with my ramblings what you will!

One more thing, don't skimp on your wiring! If the wires are no good, it doesn't matter how good the signal your headunit chucks out, or how nice your amps are, there'll still be a noticable dip in quality.

If you want some help installing it, I'm always free to give a hand! Good luck mate, let us all know how you get on  

[perd999]

yeh cheers .....i mite take u up on that help...but where abouts are u.?oh and no ill jus move slightly onto a different topic....lowering, i need a new suspension at the back as it has been towed alot...is it the springs or coil over that is likely to need replacing after being towed alot? and to lower shud i get springs and coil overs new?

[S11EPS]

I'm in Cambridgeshire, but I don't mind travelling a bit to come and give you some help  

As for the suspension, if you have knackered rear shocks or springs I wouldn't mess about just trying to change just the back ones - get yourself a whole new spring/shock combo for all four corners, you can pick em up for ?200.

If you just change the rears, you'll have different spring rates, ride heights, state of wear etc etc front to rear, and the car will handle like a total pig.

[perd999]

yeh i intend to change all of them with the same height etc.....but was jus checkin that u replace the springs and coilover to lower it. as for the ice i intend to get a new head unit as well but it has to be panasonic to link to the cd changer.....or can other makes link to it? and the speakers i can sort out aswell as the amp and sub ....im on a low budget  so i need not the best but quite a good standar do u know ne weher with cheapish subs and amps? and wot kind of make of amp/sub should i get if ive got jbl speakers and wot size are the tweeters? Its a MK3 golf gti

[iball]

S11EPS - Where abouts in Cambridgeshire are you from, just out of interest, I see a couple of Anniversary spec Mk4's on a regular basis.

Cheers, sorry for wandering off topic!!

[S11EPS]

I live in St.neots mate, but have friends in Huntingdon and St.Ives, so I can often be seen flying through there too