Peerless Dual Voice Coil 8/8 ohm
Extra Extra Long Stroke
Thick Nomex fiber cone
Cast frame
Big roll rubber surround
Good for 80 liter vented box. 3" vent 8.75" long
308mm Ø flange
278mm Ø cut out
145mm depth

Specs are with coils in parallel:

Znom 4 ohm
Re 2.5 ohm
Le 1.8 mH
fs 21.8 Hz
Qms 10.24
Qes 0.37
Qts 0.36
Mms 110.9 g
Cms 0.48 mm/N
Sd 466 cm2
BL 10.2 N/A
Vas 144.2 ltrs
Xmax 12.5 mm peak
Voice Coil Ø 51 mm
Sensitivity
2.83V / 1m 92 dB
Power (IEC) 350 W
Magnet weight 2.4 kg


Suggested box alignments:
Sealed 50 Liter (1.75cf) box, F3 of 43Hz (lower in a car with cabin gain)
Vented 80 Liter (2.8cf) box, F3 of 27Hz, 3" vent by 8.75" long
A flared port with extra doping on the flare is recommended.

View PDF Datasheet