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Multi-Way Conventional loudspeakers with crossovers

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Old 10th October 2012, 10:08 PM   #11
DrDyna is offline DrDyna  United States
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Originally Posted by planet10 View Post
I like sretens's acronym expansion -- it more accuratly descibes what is trying to be accomplished, but boris' is more widely used.

Agreed, I've always read FAST in my head as Boris' explaination, but sreten's is more descriptive.

All in favor of sreten's initialization, say aye.

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Old 11th October 2012, 06:55 AM   #12
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With sreten it can both be tweeter assisting large fullrange (15 inch), and woofer assisting small fullrange (3-5").

But with Boris it's just the woofer assisting a small fullrange. IMHO it's just another name for a 2 way speaker, so I'll stick to that name.
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Old 11th October 2012, 07:06 AM   #13
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A FAST is a 2-way, but generally when you say 2-way most people think midbass + tweeter with an XO 2-4 kHz -- right where the ear is most sensitive and the distance between thr 2 drivers is "large".

The XO in a FAST is where the ear is much less sensitive and where, if one pays attention, the drivers can be essentially coincedent -- ie the distance between the 2 drivers is "small".

These are fundemental differences that take a lot of the weaknesses -- the evil -- out of the XO (assuming they are done with equal amount of care & attention)

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Old 11th October 2012, 07:15 AM   #14
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It's still just a 2-way. only very few knows what a FAST speaker is, but everyone knows what a 2-way is.

2-way with low cross over point have been known for ages, with planars, ribbons and electrostatic elements. But also with conventional fullranges and Manger.
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