The chassis offered here are actually called Peerless SDS-P830856. These were only sold to OEM manufacturers. The only difference to P830855 is the additional shielding of the magnets. The greater weight of the magnet is only an acoustic advantage. Otherwise the data is identical.
8 Ohm , Magnet abgeschirmt / shielded
Voice coil inner diameter 25,73 mm
Voice coil height 12mm
Voice coil layers 2
Height of the gap 6mm
Linear excursion +/- 3mm
( DST danish sound technology, PEERLESS BY TYMPHANY )
New, unused item