Looking to sell 3 GR Passives I used with GR 12b subwoofers.These are no longer available from Danny. They were used in the correct 2.4 ft3 boxes. I want to go sealed so I need to sell these to get 4 more 12b's.
$25 each + shipping.
Check out my feedback on audiogon or ebay under ryan45872
The PR-12A uses a paper cone attached to a solid MDF diaphragm. X-max is 22mm each way. The production PR-12A has a bolt running through it that will allow for mass to be added as per washers and a nut.
Here are the specs and the tuning of the box according to Bass Box software. The tuning frequency was confirmed with an impedance sweep.
Single Driver Passive Radiator Box Parameters:
Vb = 2.400 cu.ft
Vap = 6.000 cu.ft
Fp = 12.5 hertz
F3 = 20.8 hertz
Fill = normal
Thanks
Ryan
