Crossover Thresholds/Suggested Electronics

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   Hi all,

I am currently building a pair of 122s and am wondering about x-over frequencies.

What frequencies do people recommend crossing the 12"s into the 2"?
Should there be a filter for anything lower than a certain threshold?

I was hoping to use passive x-overs initially.
Can anyone recommend suitable electronics for this?
(planning to use P.Audio sn12b's and BMD750)

Thanks in advance!

BTW the horn specified in the plans is the 2723. Yet all the examples I have seen on this forum show a much wider horn unit, possibly a 2380?

Is this to increase high-end dispersion?
What do people think of this change?

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nanders Members Profile Send Private Message Find Members Posts Add to Buddy List Registered User Joined: 14 September 2007 Location: United Kingdom Status: Offline Points: 4	Post Options Post Reply Quote nanders Report Post Thanks(0) Quote Reply Topic: Crossover Thresholds/Suggested Electronics Posted: 14 September 2007 at 6:34pm
	Hi all, I am currently building a pair of 122s and am wondering about x-over frequencies. What frequencies do people recommend crossing the 12"s into the 2"? Should there be a filter for anything lower than a certain threshold? I was hoping to use passive x-overs initially. Can anyone recommend suitable electronics for this? (planning to use P.Audio sn12b's and BMD750) Thanks in advance! BTW the horn specified in the plans is the 2723. Yet all the examples I have seen on this forum show a much wider horn unit, possibly a 2380? Is this to increase high-end dispersion? What do people think of this change?