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Fane 15B 400 (Turbosound/FK1) BPH - Driver

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levyte357- View Drop Down
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    Posted: 28 October 2018 at 2:36pm
About to put up a pair of these for sale.

People telling me they are worth real money, and don't sell, as they are very similar to drivers used in various historic Turbo/FK1 15" BPH.

E.g low Qms/Mms.

Opinions?


Edited by levyte357- - 28 October 2018 at 2:38pm
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Marko View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Marko Quote  Post ReplyReply Direct Link To This Post Posted: 04 November 2018 at 4:49pm
I thought that drivers for 4th order bandpass need to have high QMS.
Can you elaborate a little bit?

Thanx
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levyte357- View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote levyte357- Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2018 at 11:34am
Originally posted by Marko Marko wrote:

I thought that drivers for 4th order bandpass need to have high QMS.
Can you elaborate a little bit?

Thanx


Qms is only one aspect of an ideal BPH driver's control/efficiency.

Even though qms for Fane 15B400 is 3.64, the reference efficiency for the driver is 4.28%, indicating driver is exceedingly efficient, regardless of qms.

Also with BL approx 25, driver motor still has very decent control.

Also of importance is whether you desire more low end, or extension above 200hz.

Lighter cone contributes to higher freq extension.

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cravings View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote cravings Quote  Post ReplyReply Direct Link To This Post Posted: 05 November 2018 at 4:05pm
there's a good bit in the FAQ about drivers for bandpass horns. i had some of these in old turbosound bphs once.. they sounded great in them.

Edited by cravings - 05 November 2018 at 4:05pm
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