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B200 SP1070

 
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SaSi
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Joined: 24 Aug 2008
Posts: 223

PostPosted: Mon Aug 22, 2011 12:37 pm    Post subject: B200 SP1070 Reply with quote

I've tried in vain to find the specs for the SP1070 variant.

Has anyone measured the T/S parameters for these drivers? As I've obtained 4 such drivers, I'm wondering if they are suitable for a 100lt overall bandpass design, like the 107.
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ColinR
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Joined: 31 Jul 2004
Posts: 1175
Location: Staffordshire

PostPosted: Mon Aug 22, 2011 6:54 pm    Post subject: Reply with quote

The SP1070 was used in the 17 litre Celeste IV/III/II and has a pretty weedy motor, so I'd expect the driver to get "lost" in any volume greater than 20 litre.
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SaSi
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PostPosted: Tue Aug 23, 2011 7:43 pm    Post subject: Reply with quote

That seems just about right for what I'd like to experiment.

Two 20lt chambers for the drivers, 30-40lt front chamber and the rest allocated to a "shelf port" firing upwards.

Perhaps it's the most appropriate example of a driver to actually complete the T/S parameter measurement.

And - as I've read here - despite calculations, it takes experimentation to fine tune the balance between volumes, stuffing and crossover compensation.
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