Posted by Earl Geddes [ 69.209.162.87 ] on December 10, 2005 at 10:56:31:

In Reply to: Cheap passive radiators posted by Rapid on December 10, 2005 at 04:52:54:

I don't understand your 3 passive radiators - why would you want to do that?

We used a 10" driver, the same cone area in a stamped metal basket with a 2:1 area ratio. The cost of this later piece was only a fraction of the driver - why would it be more? The cost in a driver is in the motor structure, eliminate that and the cost should only be a fraction of the original speaker. Then we used two of these levers. Result; +6 dB more output at far less cost than two drivers with motors. A single lever would have reduced this cost further, but we liked the packaging options of two better.

I think that you calcs have some problems.

Replies:

• Seems like I've misunderstood things - Rapid 12:25:05 12/10/05 (1)
  • Sure - Earl Geddes 12:59:14 12/10/05 (0)