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Multi-Way Conventional loudspeakers with crossovers

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Old 3rd February 2014, 07:23 PM   #21
fpitas is offline fpitas  United States
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Quote:
Originally Posted by tinitus View Post
are these steep 48db xo slopes good ?
My experience, and that of a friend with a similar horn system, is that the LR8 crossover sounds bizarre, or even disturbing at times. He's happy with LR4 on the woofer and horn, while I've arrived at BW2 on the woofer and Bess3 on the horn. Perhaps with phase correction the LR8 would sound OK, but we haven't tried that.
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Old 3rd February 2014, 08:38 PM   #22
Scott L is offline Scott L  United States
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Default 8th order L/R

Quote:
Originally Posted by fpitas View Post
My experience, and that of a friend with a similar horn system, is that the LR8 crossover sounds bizarre, or even disturbing at times. He's happy with LR4 on the woofer and horn, while I've arrived at BW2 on the woofer and Bess3 on the horn. Perhaps with phase correction the LR8 would sound OK, but we haven't tried that.
My experience using an 8th order Linkwitz-Reilly crossover has been nothing short of excellent. I've used it both in direct radiator and horn systems.

On a related note, my x-over unit is often the target of criticism by my fellow audiophile friends. But at the end of the day, I enjoy my system very, very, much.
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Old 6th February 2014, 06:54 AM   #23
tinitus is offline tinitus  Europe
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quote from Linkwitz

The caveat, though, is an increased difficulty in designing good systems with sharp slopes. The loudspeakers involved have differing transient responses, polar patterns and power responses. This means the system designer must know the driver characteristics thoroughly. Ironically, sometimes loudspeaker overlap helps the system blend better even when on-axis amplitude response is flat.
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Old 6th February 2014, 01:23 PM   #24
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I get the WAF part Defo, this will always be a challange in horn systems.
Can't agree with you on smaller drivers being easier to integrate. What matters is to have a smooth blending of the power response at the XO frequency and a large enough forward lobe to cover the intended listening position and drivers that are well behaved through the XO region. DSP makes designing good XO's for horn systems a lot easier. A low XO frequency as you plan also makes this much easier, but going to low can make a compression driver sound strained, or a horn sound honky.

I have a green light on the following concept fro my GF:
48cm JMLC on top, with a large format driver.
Supertweeter just below angled 5 degrees upwards.
15" woofer in a cardoid - resistance enclosure also angled upwards.
18" inch woofers in the TV-bench.

Maybe not as cool looking as yours, but a fair compromise between visual aesthetics and forms follow function I think
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