Four of these for sale £50.00 the four collect only from St Leonards on Sea, 3 miles west of Hastings in Sussex
Too big and awkward to courier.
All fully used but in very good nick. Upgraded recently to Precision Devices drivers for my large bass horns.
The b version has a Qt of 0.5 and an Fs of 35Hz. Suitable for OB, reflex or quarter wave cabinets