diy comp setup?

[knotslck 10+ year member]

i would think you would just run rcas to the amp and then set the hu and the amp to the right crossover points.

 

[alphakenny1 10+ year member]

oops actually it does probably have a 2 way crossover but not a 3 way crossover. so you cannot fully run an active setup with the HU alone. like i said earlier, you can probably use a combination of your amps and HU crossovers to go active but like i said i won't do that because of time alignment issues.

 

[rocky 59 5,000+ posts]

okay then would i just go with a external crossover and run the amp to it then run the tweets off the crossover?? then i would get another set of crossovers and run the amp to those and run my mids off that other set??? god this is to difficult lol

 

[knotslck 10+ year member]

what hu for $200 would be the best in an active setup?

 

[alphakenny1 10+ year member]

technically he's correct. just run the wires and what not as you normally would with a passive setup and then just start choosing crossover points on your HU (if you have an HU that has a 3 way crossover). if your HU doesn't have it you can use a combination of your HU and amp crossovers.

 

[alphakenny1 10+ year member]

what hu for $200 would be the best in an active setup?

sorry but thats not enough to get a BNIB HU that has a 3 way crossover. having a 3 way crossover on your HU is a tuning capability and more tuning capability an HU has the more it costs. i mean as of right now the only HU with a 4 way crossover built in, retails at $1300 (but actually the URAL CCD is coming out soon and it has 4 way capabilities and eD is having a group buy for that HU for $500).

 

[knotslck 10+ year member]

it doesnt have to be new in box. used is always an option.

 

[rocky 59 5,000+ posts]

sent pm kenny

 

[alphakenny1 10+ year member]

it doesnt have to be new in box. used is always an option.

even so its hard to find a used HU with a 3 way crossover for $200. probably the cheapest option would be the pioneer 860. can be had BNIB on ebay for around $300. i'm sure you harp around hard enough you can get one used on here.

 

[thadman 10+ year member]

is the 860 a good headunit to run active with?

 

[alphakenny1 10+ year member]

^ It'll be sufficient. I don't think it has a PEQ though. it has a 13 band graphic equalizer.

 

[maylar 10+ year member]

budget? i would recommend either eclipse 8455, 8454, 8443 or 8053. the last two can't play mp3's though. also you can get alpine 9835 for around $350 used either here or on ebay. also the alpine 9815 has a 3 way crossover. the pioneer 860 has a 3 way active crossover as well.

A fully active setup requires 3 sets of signals: subs, mids and tweets. You need lowpass for the subs, hipass and lopass for the mids, and hipass for the tweets. That'd be a 4-way crossover, right?

Do these head units actually do that? The ones I've looked at have front, rear and sub outs. Do they change the rear outputs into mids or something? Can they lowpass the mids and hipass tweets at say 2000 Hz?

Just curious as to how this works.

 

[alphakenny1 10+ year member]

A fully active setup requires 3 sets of signals: subs, mids and tweets. You need lowpass for the subs, hipass and lopass for the mids, and hipass for the tweets. That'd be a 4-way crossover, right?
Do these head units actually do that? The ones I've looked at have front, rear and sub outs. Do they change the rear outputs into mids or something? Can they lowpass the mids and hipass tweets at say 2000 Hz?

Just curious as to how this works.

what you said is correct that being crossing all those speakers but in general it would go like this: LP subs, bandpass the mids (HP and LP the mids), and HP the tweets. this is a 3 way active setup where you have your subs, mids and tweets. the 3 way stands for those speakers: lows, mids and tweets.

a 4 way crossover goes like this: LP subs, bandpass midbass, bandpass midrange and HP the tweets.

as for the front, rear, sub. not quite sure on other HUs but in my eclipse i have two options for the speakers: 3way which includes sub, mid, and high where i can independtly control each speaker or front/rear and sub in this case i only have a 2way crossover in which i can only HP the front and rear and LP the sub. this is probably used for a passive setup that is not bi amped.

 

[JoseMCeee 10+ year member]

what you said is correct that being crossing all those speakers but in general it would go like this: LP subs, bandpass the mids (HP and LP the mids), and HP the tweets. this is a 3 way active setup where you have your subs, mids and tweets. the 3 way stands for those speakers: lows, mids and tweets.
a 4 way crossover goes like this: LP subs, bandpass midbass, bandpass midrange and HP the tweets.

as for the front, rear, sub. not quite sure on other HUs but in my eclipse i have two options for the speakers: 3way which includes sub, mid, and high where i can independtly control each speaker or front/rear and sub in this case i only have a 2way crossover in which i can only HP the front and rear and LP the sub. this is probably used for a passive setup that is not bi amped.

Ok I pretty much get how that works but Im still not seeing how that would differ from a regular setup? Is the only difference is that you are doing it from your deck and not your amps? Or is it that you are not wiring the mids and tweets to those crossovers they come with and directly to the amps and powering each one of those separately...

 

[azbass 5,000+ posts]

i have an active x-over for cheep if your interested. pm what you could spend max. and ill see what i can do.