Thinking about going active. What to do?

[energizedsbs 10+ year member]

I would say active in the front and passive in the rear... run a 4 channel in the front and a 2 channel for the rear.

 

[mlstrass 5,000+ posts]

no reason to go active in the rear, just run passive comps or coax's. Concentrate on getting the front stage right and letting the rears add in a little more sound, but not taking away from the front...

 

[germanyt 10+ year member]

Seems like having passive rears and active fronts would take away from the quality. Would I have to run a couple 2 channels for the front and run the rears off teh h/u? I don't like the idea of running Rainbow Germs off the h/u. Unless someone can tell that running all 4 comps active will sound better than all passive then I'll just go passive with the two 2270s

 

[energizedsbs 10+ year member]

well if you want to do them all active or all passive i would just stick with what you have now passive.. there is no reason to run the backs active at all.... imo i would run one 2270 to the front mids one 2270 to the tweets...and get a small amp for rear fill... if setup right it will sound alot better... dont know if this helps because you seem really set on running the backs active.. i say stay away from backs active

 

[germanyt 10+ year member]

I'm not really stuck on doing it. I don't want to run a setup that is not recommended. I just don't get why it's not recommended. I get that as far as staging is concerned it wouldn't work well but that is not my goal. I don't see why time alignment wouldn't still work well. And it being able to set the x over points for the fronts is easier on the comps and better for SQ wouldn't the same be true for the rears? Sorry if I'm making this complicated. It just sounds like it's not recommended because of staging and that is not my concern.

 

[germanyt 10+ year member]

Also, what is the impedence of the woofer and tweeter if the x over is being left out? I was thinking that if I go with the full active then an Autotek MM100.4 on the woofers and a MM75.4 on the tweets would work well but I don't know the impedence of the drivers so I don't know how to pick the amps.

 

[germanyt 10+ year member]

Went searching for the CS 465.25 Germs. Can't find them for sale in the states anywhere. Anyone know where to get them or have an answer to my previous post?

 

[germanyt 10+ year member]

Bump again. It seems that the eD basket thread is more important that my thread. I'm actually asking legitimate questions. At least I think so. Does anyone have any answers?

 

[audioholic 5,000+ posts]

Bump again. It seems that the eD basket thread is more important that my thread. I'm actually asking legitimate questions. At least I think so. Does anyone have any answers?

Ive considered piping in several times, but I cant get past your "I dont believe in fronts only" comment. When your thinking has a fundamental flaw in it, and you've already decided you wont change your mind, Im not even sure how to address your questions. Hear me out...
Nobody runs fully active front and rear... nobody who knows what they are doing anyway. Ask around if you dont believe me. Go to ECA and ask all those SQ gurus about running rears in any form of SQ setup. Then ask yourself why no big competitor, or even serious SQ enthusiast that knows much, agrees with your conclusion.

You asked why the comment was made on being difficult to tune.... isn't it obvious? You yourself already know you are bucking the mainstream with your theory that rear stage is necessary in SQ vehicles, so why play like you have no idea why people say it will be hard to tune?

Rear speakers with tweeters, are definitely not 'rear fill'. Seems the popular trend these days is to pop whatever rear speakers you want in, and then try to claim some form of clinging to SQ rules by just calling it 'rear fill'. Rear fill consists of a speaker that is bandpassed, generally playing nothing over 5khz. And its atenuated down to not draw attention away from the front stage, where your attention should be. If you can actually hear the rear speakers playing, at any point in a musical passage, they are not set up as rear fill correctly.

Running a 'fully active system' is actually not that complicated, in some ways its simpler and more elegant than running a passive network. Your h/u, or a sound processor, splits the freqs, which each then have their own channel of amplification before being sent to the speakers.

 

[bikinpunk 10+ year member]

Ive considered piping in several times, but I cant get past your "I dont believe in fronts only" comment. When your thinking has a fundamental flaw in it, and you've already decided you wont change your mind, Im not even sure how to address your questions.

Exactly why I gave up. I posted all that info to simply get "I want rears".

 

[audioholic 5,000+ posts]

Exactly why I gave up. I posted all that info to simply get "I want rears".

Yeah I saw that you gave it a good try. A+ for effort man. lol

 

[Flipx99 5,000+ posts]

I have the 880, and I run two way active.

3way active is too much work, IMO.

 

[mlstrass 5,000+ posts]

I also see little reason to buy a passive set and run them active vs buying DIY drivers....

 

[bikinpunk 10+ year member]

Yeah I saw that you gave it a good try. A+ for effort man. lol

haha. thanks. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif

 

[germanyt 10+ year member]

Ive considered piping in several times, but I cant get past your "I dont believe in fronts only" comment. When your thinking has a fundamental flaw in it, and you've already decided you wont change your mind, Im not even sure how to address your questions. Hear me out...
Nobody runs fully active front and rear... nobody who knows what they are doing anyway. Ask around if you dont believe me. Go to ECA and ask all those SQ gurus about running rears in any form of SQ setup. Then ask yourself why no big competitor, or even serious SQ enthusiast that knows much, agrees with your conclusion.

You asked why the comment was made on being difficult to tune.... isn't it obvious? You yourself already know you are bucking the mainstream with your theory that rear stage is necessary in SQ vehicles, so why play like you have no idea why people say it will be hard to tune?

Rear speakers with tweeters, are definitely not 'rear fill'. Seems the popular trend these days is to pop whatever rear speakers you want in, and then try to claim some form of clinging to SQ rules by just calling it 'rear fill'. Rear fill consists of a speaker that is bandpassed, generally playing nothing over 5khz. And its atenuated down to not draw attention away from the front stage, where your attention should be. If you can actually hear the rear speakers playing, at any point in a musical passage, they are not set up as rear fill correctly.

Running a 'fully active system' is actually not that complicated, in some ways its simpler and more elegant than running a passive network. Your h/u, or a sound processor, splits the freqs, which each then have their own channel of amplification before being sent to the speakers.

Understood. I just want the rear passengers, when i have them, to enjoy the "music" as much as the front passenger. If I chose to go with just fronts how would that affect the sound from the rear? I'ver never used a truly superior set of components. I have infinitys in my car (not the vehicle I'm working on now) now and I can tell you that without the rears a rear passenger wouldn't hear much. I will say that if I decided that I didn't want rears then that leaves me roughly 1500 dollars to spend on a set of fronts.