Goldwood GW-215/4 OB sub-woofer?

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Giri

Member
2018-06-10 3:36 pm
I simulated a four Goldwood GW-215/4 with four 15" driver per side, in a series-parallel configuration, in Basta. I have attached are the pictures of the simulation.

1) Is the xmax of 3.5mm a matter of concern? What is the xlim of Goldwood GW-215/4?

2) Please let know any observations or comments on the design, its feasibility, improvements etc.
 

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I am worried about damaging the driver at volumes that cross the xlim more than any distortion

Fair enough. That does come back to my question, though - how loud do you want to go?

You might find it's impossible to hit Xlim - it's rare to find a driver that will actually let you bottom it out as most tend to run out of motor force towards the ends of excursions, plus the surround/suspension is starting to lock up. The result is that the cone simply won't go any further, no matter how much power you drop in.

Chris
 

Giri

Member
2018-06-10 3:36 pm
Fair enough. That does come back to my question, though - how loud do you want to go?

You might find it's impossible to hit Xlim - it's rare to find a driver that will actually let you bottom it out as most tend to run out of motor force towards the ends of excursions, plus the surround/suspension is starting to lock up. The result is that the cone simply won't go any further, no matter how much power you drop in.

Chris

I have seen internet pictures of some cones broken due to cone exertion beyond limits. Hence, the concern.
 
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