Board for a 5 way Crossover

Started by mill...@gmail.com April 23, 2012
I wasn't really sure where to post it but my situation is that I need an inexpensive (hobbyist) DSP solution to turn a single input into a 5-way crossover (distributing the signal across a sub, 2 mids, and 2 tweets) output. I've considered doing an active crossover out of pure components, but a DSP solution can give me flexibility (such as adjustable crossover) that would be ideal.

So far I have only found stuff like miniDSP which is both expensive and only has 4 outputs. Any help in this would be great.
Why do you call it a 5-way x-over? From your description, it appears you're speaking of a 3-way x-over, as follows:

- Sub
- Lo (2 drivers in parallel)
- Tweeter (2 drivers in parallel)

A true 5-way x-over has the following output bands and separate amplifiers for each:
- Sub
- Lo
- Lo-Mid
- Hi-Mid
- Hi

Note that the transducers (drivers) are different for each of those 5 bands.
I don't think they come much cheaper than miniDSP. Have you seen the 2x8?

http://www.minidsp.com/products/minidspkits/2-x-in-8-x-out

You could also look at Soundeasy, which has a crossover emulator. The
approach would be to measure your drivers, combine them into a system
design based on an analogue active crossover, and tweak away until you like
what you hear.

See http://www.bodziosoftware.com.au/; scroll down to just over half-way
down the page.

Regards
Shaun

--
DON'T PANIC

On 11 April 2012 19:36, wrote:

> **
> I wasn't really sure where to post it but my situation is that I need an
> inexpensive (hobbyist) DSP solution to turn a single input into a 5-way
> crossover (distributing the signal across a sub, 2 mids, and 2 tweets)
> output. I've considered doing an active crossover out of pure components,
> but a DSP solution can give me flexibility (such as adjustable crossover)
> that would be ideal.
>
> So far I have only found stuff like miniDSP which is both expensive and
> only has 4 outputs. Any help in this would be great.
>
>

--
DON'T PANIC
Is this all for just a single channel studio monitor/speaker? How much
hardware experience do you have? I don't know of any cheap development
boards that could be used for this, as virtually every cheap dev board only
comes with 2 channels of audio output. If you're not opposed to 'rolling
your own' hardware then there is an infinite number of solutions available.
-Brant

On Wed, Apr 11, 2012 at 10:36 AM, wrote:

> **
> I wasn't really sure where to post it but my situation is that I need an
> inexpensive (hobbyist) DSP solution to turn a single input into a 5-way
> crossover (distributing the signal across a sub, 2 mids, and 2 tweets)
> output. I've considered doing an active crossover out of pure components,
> but a DSP solution can give me flexibility (such as adjustable crossover)
> that would be ideal.
>
> So far I have only found stuff like miniDSP which is both expensive and
> only has 4 outputs. Any help in this would be great.
>
>

--
Brant Jameson
PhD Candidate
UC Santa Cruz Computer Engineering
http://people.ucsc.edu/~pheese