HELIX K 8W 8" Subwoofer
Do-it-yourselfers, here's your chance to create your personal subwoofer box, to fit perfect into your car!
From the technical point of view the drivers K 8W, K 10W and K 12W are absolutely identical with the subwoofers that are installed in the K series enclosure subs.
Just have a look at the Thiele/Small parameters and you will easily notice that those are designed for compact vented and sealed cabinets, yet leaving plenty of "headroom" for designing your own preferred sound characteristic.
If you prefer it to play safe, just choose the net volume, port tuning frequency and DSP settings as recommended in the technical data for outstanding bass performance.
So what are you waiting for? Start your "tailor-made subwoofer project" right now!
Features
- Extremely stiff, hand-scooped paper cone
- Double ventilated voice coil for minimum compression effects and high power handling
- Rugged magnet cover with HELIX lettering for perfect magnet protection
- Long-excursion rubber surround for highest mechanical rating
- 2 x 2 Ohms dual voice coil for flexible system configuration
- Solid push terminals
- Powerful magnet system for compact vented enclosures
- Grille and gasket included in delivery
Technical Information
Power RMS / max. P 300 / 600 Watts Impedance Z 2 x 2 Ω DC resistance Re 2 x 1.6 Ω Resonance frequency Fs 37 Hz Mechanical Q factor Qms 3.56 Electrical Q factor Qes 0.46 Total Q factor Qts 0.41 Compliance Cms 262 μm/N Equivalent air volume Vas 17 L Force factor B*I 10.7 Tm Efficiency 1 W / 1 m SPL 86.0 dB Cone area Sd 219 cm² Moving mass Mms 69 g Cone material Hand-scooped paper cone Mechanical resistance Rms 4.54 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 213 mm / 8.38" Installation diameter ø 182 mm / 7.17" Installation depth 101 mm / 3.98" Recommended enclosure volumes Sealed box Net volume 8 L Lower limiting frequency (-3dB) 50 Hz Recommended DSP settings Recommended "self-define" highpass filter with 50 Hz cut-off frequency and Q = 1.5,
additional EQ filter 115 Hz / Q = 1.0 / -2.5 dBVented box Net volume 8 L Port diameter ø 60 mm / 2.36" Port area 28 cm² Port length 42 cm / 16.5" (angled port) Port tuning frequency Fb 43 Hz Lower limiting frequency (-3dB) 45 Hz Recommended DSP settings Recommended "self-define" highpass filter with 43 Hz cut-off frequency and Q = 1.5,
additional EQ filter 120 Hz / Q = 0.8 / -3.5 dBWhats in the box
1 x Subwoofer HELIX K 8W
1 x Grille
1 x Gasket
1 x Data sheet