I am going to be running a pair of RE XXX mids and a pair of tbd tweeters active. I have 2 2 channel amps available. I am just wondering if anybody can suggest a decent active crossover for ~150 or less that will run this system.

check out some old coustic XM-5e. Should be cheap and a solid x over

http://www.lanzar.com/itempage.asp?MODEL=OPTIX2B

http://www.lanzar.com/itempage.asp?MODEL=VIBEX2

http://www.lanzar.com/itempage.asp?MODEL=VIBEX6

http://www.lanzar.com/itempage.asp?MODEL=VIBESX7

PM me if you want one of the above..

Which one would work best in my applicataion? I only need it for the fronts (mids/tweets).

The Vibex2 will probably have everything you need and is the least expensive...

the other Xovers just have different features... the optix2b being the most versitile..

^ according to the information, the vibe2's lowpass is limited to 250hz.. Drew plans on using it for mid's/tweet xover.. The OPTIX2B is the better choice sense its xover range is higher.

Drew, i have a audiocontrol 24xs that i dont use anymore.. Only thing is it uses r-net chips, instead of knobs.

how hard are the r-net chips to acquire?

^ you can make your own by using common resistors. IF you have a really good idea of the xover freq you want (RE might be able to comment) then its not a big deal.

Myself when i was using it, i used my DQX to determine the xover point, then made the r-net to match.. When i did my 4-way system that is.

PM sent.

VIBEX2:

Hi-Pass Crossover Adjustable Frequency From 80 To 2.5K Hz

Lo-pass Crossover Adjustable Frequency From 35 To 400 Hz

[img]graemlins/dunno.gif[/img]


The highest lowpass setting would have your your midbass playing 3db down @ 500hz... If you wanted a higher setting then yes, look at the opti or another brand Xover...

One feature you may want to look for which the optix2b and the VIBESX7 have is a fully isolated power supply... this goes 2x if you are mounting the xover very far away from your amplifiers...

Basically I want my mid to play from 80hz up to about 4khz and my tweet to take over from there. The amp running my mids doesn't have an onboard crossover. (orion 3002)

[ January 15, 2006, 02:08 PM: Message edited by: Drew ]

^ you need a 3-way xover then.

Unless your deck has a decent xover for sub-high.. Also If your sub amp has aux. outputs and a decent xover you can do that to.

[ January 15, 2006, 02:12 PM: Message edited by: chev2 ]

You need a bandpass xover or else your lowpassed mid will play all the way down to 20hz...

For most applications this isn't a big deal... but it can waste midbass power and cause unnecassary heating/power compression...

I think chev is suggesting using a high pass channel fed into a lowpass channel... but unless you can find a 3way with a lowpass sub setting at 4khz you would have to use a pair of 2ways..

Alternativly you could use a 2way active Xover with a pair of highpass Fmod passives for your RCA cables....

Or, buy an actual bandpass active Xover:

http://www.lanzar.com/itempage.asp?MODEL=OPTIX3B

PM me ;)

[ January 15, 2006, 03:11 PM: Message edited by: Haunz ]

Well I think I have if figured out. If anyone sees any flaws, let me know.

No sub for now
hpf from IVA-D310--->Mid
lpf from audiocontrol 24xs--->Mid
hpf from audiocontrol 24xs--->tweeter

The tweeters and mids will each have their separate 2 channel amps.

The 24XS is nice but I like to have knobs on my crossover. Coustic XM-5e would be my suggestion.

yeah...I think I can deal with buying a half dozen 5 cent resistors when I want to change the xover point...Now I just need to find a way to fit those beasts into my door...

Iam pretty sure you will want to use non-inductive wire wound or metal film resistors..

using cheapie carbon resistors will mess with your response curves...

Better order a bunch from digikey.. ;)

They reccomend carbon or metal film resistors with a +-5% value.

Try to find a used PG AX406 crossover. It is three way with knobs under a protective cover. It too uses chips for different x-over points. It has a built in Low pass level control plug for a knob to mount up from (LPL44). Variable phase, Highvoltage in/out, built in line driver, and is 24db/oct Link/Riley slopes.

Ebay or on a forum is the place to look.
You may want to try finding a used audiocontrol 4xs too....just a thought.

Local Radio shack(The Source) should have 1% carbon resistor. For SQ, it is hard to beat Audio control. I find on board crossover and deck crossover lacking in detail.