<p>These subwoofers are not made to make SPL records. These are made to give a natural and accurate sound with all the low notes. Listening pleasure with all kinds of music. You can use almost any type of enclosure, but for the very best results small sealed is the way to go. Sensitivity is good so you can invest your amp money to quality instead of thousands of watts. Excellent choice to car specific enclosures.</p>

TECHNICAL DATA

20 cm / 8″ SQ Subwoofer,
300 WRMS
Rec. amplifier power 2-400 Watts ( rms )
2 x 2 ohm
50 mm / 2″ copper voice coil
Reinforced paper cone
Audiophile POLYCOT spider

Fs 56.9 Hz
Qms 11.92
Qes 0.74
Qts 0.69
Vas 4.8L
Le 1.57 mH
Mms 92.9 gr
Bl 13.55
Xmax 20 mm
Effiency 83 dB

Outer diameter 215mm
Mounting cut out 181mm
Mounting depth 108mm.