Imaging and Subs

[Mash Jetta TDI 10+ year member]

Hi im a new member. Got a few questions. I have a VW jetta, I want to add a sub woofer to my system and i want it to sound good. But, I dont want my subs to over power my full ranges and tweeters. To get better imaging, should I bother amping my speakers and tweeters to the same amperage as my subs?

Here's my system scheme:

Head Unit

Blaupunkt San Jose 50x4 max RMS

Speakers

Kenwood KFC-1738C 30-30,000 Hz Front Door pannels and back trunk deck

Stock VW Tweeters (will need to be upgraded)

Profile California Amp

Dual Blaupunkt ODw1500 15" subwoofers 20-2000 Hz

Trunk in box.

Sub suggestions welcome.

Click to read more...

 

[dcsoundguy 10+ year member]

if I understand correctly, your present system runs off your Blaupunkt head unit, and you want to add th profile amp and th 15's, yes?? If so, I'd say tentatively yes, you'd be much better off running all your spkrs thru your amp, PROVIDED u cover a few basics, namely crossover. Is that Kenwood model a 6&1/2 inch coax? If yes, I'd make 'em mid-bass&hi-freq units and cross them over with a simple 470 or 1000 uf capacitor--you'll actually have to get two electrolitic caps and connect them opposite polarity in order to get a non-polarized cap--I've never seen a single non-polarized cap that value. If you want to get better highs from your coax tweets--provided you can't practically seperate their wire--you should connect a low value mylar cap across th 1000uf cap--they don't pass highs that well. Look for a 10uf or more--remember, the tweet's alredy got a cap on there,probably a 4uf or so, and using too low a value will raise th tweet's lo-cutofff point too high. Now for your sub-woofer, dare to be different and get yourself a couple of big, fat choke coils, you'll be glad u did. Look for a value from 15 to 20 mH--depending on where u live, u may get blank stares. If so, try speakercity.com, they've got some incredible lo-loss transformer-style sub-woofer coils that are sadly overlooked in th car audio community. That's my 2cents worth, most everyone else will tell you to get a second amp and an active crossover...

 

[<natem33>]

I won't go into full detail like the dc guy, but I wouldn't give your mids and highs the same amount of watts as your subs. Especially if your considering using 15 inch subs. Subs require more power to produce those low frequencies. I've used Blaupunkt 12's before with a 300 watt Orion amp. In my opinion, this sub set up did not overpower my mids and highs which were running off of the deck.

 

[<NotSoSexy>]

I am running a single 10 powered by a 200w amp, with the front components and rear 6x9s powered by the deck. Sounds just spiff-ban-dingly as long as I don't crank it all the way. AT high volumes my Sony Xplode puts out extremely dirty power.

 

[pooper 10+ year member]

i dont think the subs would overpower highs/mids inside the car.i had a 92 chevy cavalier with 3 pioneer 12s in the trunk at 300 watts each and it sill didnt over power the highs and mids but out side the car was pure bass and trunk rattle!

 

[JAZN 5,000+ posts]

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[JAZN 5,000+ posts]

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