<p>Rich bass out of compact dimensions<br>The chassis of the K subwoofer series can all be used in very compact enclosures in which they perform magnificently with exceptional bass performance. Especially when it comes to using the available space in the vehicle as good as possible due to an individual enclosure design, these woofers open up completely new possibilities for installation without making any acoustic compromises.<br><br>Clever down to the last detail<br>The extremely stiff cone made of hand-scooped paper fibers in connection with the heavy-duty driver system not only converts amplifier power easily and without compression effects into loads of sound pressure, but also scores sonically with subtle beats.<br><br>Maximum flexible connection – 2 x 2 or 1 x 2 Ohms<br>The chassis of the K-Subwoofer series are available with 1 x 2 Ohms single voice coil (SVC2) or alternatively 2 x 2 Ohms dual voice coil (DVC2). Thus, these subwoofers always offers the right solution for every amplifier configuration to get the maximum performance out of it – whether mono, 2-channel or even multi-channel amplifier.<br><br>″All inclusive″ for the do-it-yourselfer<br>In addition, the solid protective grille and gasket are also included.<br>For optimal bass performance in DIY installations you can find recommendations for sealed and vented enclosures with all parameters such as net volume, port tuning frequency as well as DSP settings in our technical data sheet.<br><br>Features<br>Extremely stiff, hand-scooped paper cone<br>Double ventilated voice coil for minimum compression effects and high power handling<br>Long-excursion rubber surround for highest mechanical rating<br>Very long linear excursion<br>1 x 2 Ohms single voice coil<br>Solid push terminals<br>Powerful magnet system for compact vented enclosures<br>Rugged magnet cover with HELIX lettering for perfect magnet protection<br>Grille and gasket included in delivery</p>

TECHNICAL DATA

Power RMS / max. P 300 / 600 Watts
Impedance Z 1 x 2 Ω
DC resistance Re 1 x 2.6 Ω
Resonance frequency Fs 32 Hz
Mechanical Q factor Qms 5.09
Electrical Q factor Qes 0.45
Total Q factor Qts 0.41
Compliance Cms 159 μm/N
Equivalent air volume Vas 25 L
Force factor B*I 12.1 Tm
Sensitivity 1 W / 1 m SPL 87.0 dB
Cone area Sd 333 cm²
Moving mass Mms 126 g
Cone material Hand-scooped paper cone
Mechanical resistance Rms 6.25 kg/s
Voice coil diameter ø 50.8 mm
Voice coil winding height 24 mm
Max. linear excursion Xmax +/- 8.0 mm
Outer diameter ø 262 mm / 10.31″
Installation diameter ø 232 mm / 9.13″
Installation depth 126 mm / 4.96″

Recommended enclosure volumes
Sealed box
Net volume 15 L
Lower limiting frequency (-3dB) 50 Hz
Recommended DSP settings “Self-Define” Highpass: 38 Hz / Q = 1.4
EQ Filter: 95 Hz / Q = 1.0 / -3 dB

Vented box
Net volume 21 L
Port diameter ø 70 mm / 2.76″
Port area 38 cm²
Port length 32 cm / 12.6″
Port tuning frequency Fb 36 Hz
Lower limiting frequency (-3dB) 36 Hz
Recommended DSP settings “Self-Define” Highpass: 35 Hz / Q = 1.0
EQ Filter: 100 Hz / Q = 0.7 / -2 dB