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toyokid

Novice install

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I have an Alpine 925 dab head unit fitted (thanks Lauren)

and a Pioneer spare wheel well sub.

It has improved the sound,

but also left it slightly unbalanced, needing more va va vum up front!

Having done a little research on this site,

I am considering amping the door speakers and tweeters.

Components for consideration are

6.5" Focal door speakers and tweeters

mounted using spacer plates

The speaker packages seemed to be lumped with "crossover" boxes, which I do not understand!

Should I use crossovers, they need to be mounted somewhere, the neatest I have seen being the boot

Then there is the amp,

having a self driven Pioneer sub in the boot, I only need to drive 150 odd watt door speakers and tweeters

Does this mean that I need 4 Chanel?

Can it be small and mounted under the passenger seat?

Would an Alpine amp make installation easier, when tying in with the head unit?

Btw I do not want to lose any boot space

Thanks in advance

Stephen

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All Component systems tend to come with crossover boxes, it filters the High's & Low's to the Tweeter and Mid-Bass

 

If you're just amping the fronts, you need a 2 channel, One channel goes in to each Crossover and then Splits to the Tweeter & Mid-Bass

 

Brand of amp won't make a difference to the simplicity of the install, I also wouldn't mount it under the seat, not much room, and could be a potential fire hazard with heated seats. In my previous cars i've put the crossovers behind the door cards, though you can put them in the boot and a lot of people do, it's just a little more wire.

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Just bought an Alpine amp,

seemed cheap enough, dealer was selling it off as "demo unit" PDX-F6 4 channel,

will probably look to mount it together with the crossovers in the boot.

 

I have a roll of 2mm insertion rubber lying around,

maybe pull all the foam out of the boot/spare wheel well,

then cover it?

 

Just need to decide on which Focal 6.5" speakers to fit?

Any ideas?

Looking to buy today.

 

Dynamat or similar to cover the doors?

Any cheaper alternatives?

 

Anyone wish to fit my box of tricks?

 

Stephen

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With dynamat you don't need to cover the whole panel, there is a guide somewhere on the internet...

 

Work out the area of the panel and it'll tell you what surface area of dynamat you need then stick that in the centre of the panel, anymore is overkill really. Not sure how well this method will work on the boot floor due its complex shape, but doors and body panels it is definitely the best way to go.

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Haven't had the door cards off to have a look at the shape of the inner skin, but the outer I'd go for a 15cm*15cm square in the centre, should kill any vibration in that you may get.

For the inner skin add a ring between the speaker plate and door and any largish area add a square as close to centre as possible.

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Just ordered the speaker template/baffle from Patrick Henry today,

which will place the tweeters in the oem position

I think that I will need to clear the boot of all foam etc to mount the amp and crossovers?

Then after sound insulating everywhere glue some of the foam back in to support the boot carpet?

Stephen

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Should get some banging beats?

The motivation for upgrading the existing kit, being it didn't seem too well balanced,

the subwoofer was kicking out good bass but the front end was flat and not engaging

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toyokid - do you have the JBL upgrade currently?

 

I sound deadened the door  behind the speaker and then blocking up all the holes where possible, of course there are cables and stuff you have to let through but you can get to 95% sealed I think this made a big diffrence the midrange upfront

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One consideration being the heat generated from the amp,

was considering mounting all below the carpet,

but now thinking bout a custom enclosure in the boot,

maybe using mdf?

And having the amp level with the boot floor, giving more heat dissipation?

 

Any thoughts?

 

Stephen

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Mine is flush mounted with the carpet. It does get pretty hot. When it's been covered by luggage it has overheated twice on long road trips, over the Alps and through Germany in high temperatures. Half an hour later it works again. 

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