What kind of amp for tri amp-ing?

[george graves]

from the looks of it, I can't afford it. Thanks anyways.

I'm going to run passive corssovers for now and see if that keeps me happy.

[StereoInstaller1]

ive always just used a crossover with an adjustment, tweeters hooked up directly to the amp justsounds scary to me

The GTX47 sounds like the way to go

good luck wit the install, and take pics!

Just wait until you have heard a full active system. It is absolutely shocking how much loss and error there is in passive networks, especially with cheap car audio crap drivers. That JBL crossover is impressive but does not have mad adjustably or a big pre-amp stage, but it has EXCELLENT speaker level inputs for those that want a stock deck in their dash.

Small 4 channel for front stage, smaller 2 channel for rear (or a 6 channel...) and a mono amp for bass is what will happen in my E34, just as soon as it is on the damn road!

[george graves]

So with passive set up, the crossovers will have a bass blocker in it?

When you go active, you need to make sure you're not driving a bunch of low frequency power into the tweeters and mids correct? Do you do that just with the crossover? Or do you put filters on the speakers?

[Dagamus(NM)]

Stereoinstaller stated it best on the last page. Three way unit, I don't know your deck but both of my alpine 9887's have three way. The switch is on the underside of the deck. I run the rca's to the three different amps. The sub output is split between the main sub amp and the 2 channels that go to the subs in the kick panels. The mids go to the other 2 channels of the 4 channel amp and the third amp powers the tweeters.

Kind of a powers hungry system. Fully active is quite nice. I have another setup with the same headunit, a large monoblock and a large four channel with the front run passive and the rear are coaxial. It is loud, but makes me exhausted listening for extended periods.

The crossover will keep the low frequencies out of your tweets and vice versa. Filters will distort sound quality.

[Erik j]

So with passive set up, the crossovers will have a bass blocker in it?

When you go active, you need to make sure you're not driving a bunch of low frequency power into the tweeters and mids correct? Do you do that just with the crossover? Or do you put filters on the speakers?

The crossover that comes with the speaker systems are set up to divide the freq correctly to the speakers.

When running a active system, the active xover generally divides the freq up and sends it then to the correct amp via RCA cables. With a active system, you dont need any inline xovers except for the preamp xover.

[StereoInstaller1]

"bass blocker" caps are not in passive crossovers: there is no high pass for the "woofer" (midrange) as you are expected to use them bi-amped, with a sub

[george graves]

What do you need to look for in a decent, entry level active crossover?

[europeanplates]

There is nothing wrong with passive crossover networks. In fact it can be a nightmare to correctly tune full active systems.

Thanks,

Tyler

[Jean]

Some very high end home audio speakers still use passive crossovers, the key is to keep the component count to a minimum OR use high quality components. For example, you $100 car audio components will have made in china crappy caps, use metallic resistors and thin inductors vs. higher end using thicker gauge wire for less losses, non inductive resistors in the l-pad or zobel circuit along with quality film caps.

GG usually a 4 channel is used by setting the front two channels on high pass using it's built in crossover or the headunits crossover to keep the bass away from the 5-6" speakers....then the passive crossover will do the rest in terms of rolling off the mid and keeping mids away from the tweeter... Then, you can use the rear two channels in bridged mode to run a sub or pair... simple/yet effective and not costly setup imho.