Mr.DatSubishi

If I were to band pass the subs, what freq would you suggest. I want to keep any vocals out of them if I do band pass them. I'm gonna try running them to their natural rolloff first. The component set I have put out a lot of highs and in a lot of cases they could be run at -3db. I'm thinking these could add a lot of mid bass and mid range and could leave the tweets at 0db. The "subs" freq range is 35hz-4khz. Probably a little above where the component tweet kicks in. I'd guess about 2khz. Massives add on tweets have a passive limiting them to 1.4khz and up.

Dukk

I would low pass the front woofers in the 60-150hz range at a minimum of 12db/octave.

Infinitely better to do this actively.

Mr.DatSubishi

I will be semi active eventually with front components on their supplied passives and their own amplifier and front subs infinitely adjustable on this 2ch.

But for now have a 2ch. amp I want to utilize as much as I can. The 12's in trunk will do 60-80hz? down, actively adjustable on their own amp, front subs will be band passed at 60hz?, active, and passively low passed at an undecided frequency. I want to either run them to rolloff @4khz or band pass for strictly low/midbass at Frequency. Front components will be high passed on the same 2ch as the front subs,For now, but not band passed.

I read somewher that having front stage subs, pulls the rear sub sound to the front so you're sub bass has the illusion of coming from in front of you. Any truth to this? What low frequency can we actually pinpoint direction of sound from?

Obviously all crossover points are up in the air. They are all active except the LPF portion of the band pass for front subs. Where do u suggest I start with that? I will install them to natural rolloff for now and go from there.

Mr.DatSubishi

Thought of another question about passives that come with a component set.

Can I run multiple tweeters off each Xover? The passives have input, woofer out, and 3 settings for tweeter attenuation. I assume the total load on the amp will change, but if the tweets only share a negative, each positive wire must be crossed over independently? I know if I change the impedance load on a single circuit in the Xover it will change Xover values, but running this way am I gonna run into any issues?

I'm basically gonna try experimenting with an upstage/centre stage tweeter setup like CDTs. Other option would be running them off deck power and that way I could attenuate them and set amps gains appropriately.

Thanks, for any help
DUKK I'm Lookin at u. Or anyone else with theory/ practical knowledge of this.

Haunz

iTrader: (3)

From the sound of things I think you are getting in way over your head. Passive crossovers are quite difficult to design properly and are definitely not for the novice. Next you have to consider that a good set is also going to be quite expensive to build. Before you even think of building your own passives I would read and thoroughly understand this article: http://sound.westhost.com/lr-passive.htm

If I were you I'd buy a 4ch amp and run an active 2-way setup, or just buy a half decent component set and run your 2ch amp. Keep it simple stupid. If you really want to get fancey an active 3way or even 4way setup with multiple amps is possible, but you will need to find some external active processing.

Mr.DatSubishi

I'm currently running Massive Audio CK6 components and am more than happy with them. I want to do a multiple speaker front stage for the "wow factor" as much as anything. But I want it to sound good too.

I've found that CDT has quite a few preman xovers to choose from for just about any setup. My only passives, for now, will be a band pass for front stage subs(if I don't let them run up to rolloff, their response is 35hz to 4khz) and the pair that my components come with. I was just asking about that dual tweeter idea. The company said it would jeopardize the protection circuit so I'm not about to try it.

I would love to go all active with processing, but can't afford it at the time. My next purchase will prob be a 4-ch and another pair of speakers for rear fill. But I'm not too concerned about the rears.

Thanks for the help

Dukk

Your extra tweeters will need their own crossovers and be connected to the amp before the passive crossover for the comp set.

Mr.DatSubishi

The tweets have their own xovers, but I'm worried an amp making 180 RMS might be too much forthem if they get more than their share. I also wanted them to be attenuated vs. the component tweeters. That's why I was asking about running off the same Xover at an attenuated setting. I may just run them off the deck for now so I can adjust them independently of the components.

Haunz

iTrader: (3)

:facepalm:

Mr.DatSubishi

Isn't everybody entitled to do with their car what they want? Sorry I'll ask for your permission next time I want to do something to my car.

I have black wheels too. I suppose you're a chrome guy and I should get them dipped.

Right on!