How do I cross IB subs?

[icor1031]

I'm not satisfied with how the crossover on the receiver works, it doesn't kill the signal quickly enough and the sub ends up localizing. (currently my sub is in a box).

So, if I get an amp like an EP4000 which does not have an adjustable pass - how do I cross it? Do I have to get a miniDSP?

Thanks.

[FOH]

Localization issues are resultant from not only low passing, which I think is what you asked. The issues also arise from poor signal alignment in the time domain, and from improper physical location.

All three issues are intertwined; low pass, location and time alignment.

[icor1031]

Okay.
But as far as low pass, how do I low pass my subs apart from a receiver if I use a behringer amp?

Do I need a mini dsp? Is there a cheaper alternative?

Basically, I need something that can contribute to crossing the way my plate amp does - with an adjustable low pass.

[Ile]

Nov 21, 2012 3:13:04 GMT -7 icor1031 said:

Is there a cheaper alternative?

I had something like this between receiver and power amp.
www.hifisoundconnection.com/Shop/Control/Product/fp/vpid/1813137/vpcsid/0/SFV/30046

Usually those have 12db/oct slope, but signal could be looped back to other channel (in stereo mode) to get 24db/oct.

If diy is option, it's not that complicated circuit to build.
sound.westhost.com/project123.htm

[ThomasW]

Might try the Behringer CX4300

[FOH]

If that would work, it certainly meets the inexpensive criteria!

I'd recommend an inexpensive pro-audio loudspeaker processing. Yeah, many have had good results w/the miniDSP line, I've not used them so I don't know.

For your scenario, I'd look at Behringer's $99 Super-X-Pro crossover, or other such cheap pro offerings. It'd be nice to get a product, like a full processor, that covers your low-pass needs, but can also help in other areas as well.

Check out someplace like Musician's Friend or Sweetwater, and examine live sound signal processing.

Good luck

Edit; Thomas beat me to it, that's prolly the Berry piece I suggested

[johnvb]

As an alternative to the Behringer, is this DBX unit. A little more $, a little simplier (less flashy lights), a different look, if you will. Nothing against the Behrs, I own plenty of their stuff too. Wanted to give the DBX a try. Works great for my IBs:

www.dbxpro.com/en-US/products/223xs

[shoshaw]

Crown offers some pretty impressive power amps that include a full DSP section. The DSP allows for delay, crossovers, EQ, limiting, compression and a whole bunch more. They have a downloadable free application called System Architect that allows you to control these amps via ethernet. The whole thing is pretty slick.

www.crownaudio.com/usa/amplifiers/xti-2-series.html

The XTi4002 will do 1600W/channel into 2 ohms and runs about $900 online.