The Helix IK S12 is a very high quality low-profile subwoofer that works in a small enclosure and comes with a protective grille.

This element has a mounting depth of only 95.5 mm so it can be installed in a very shallow enclosure.

Helix IK series subwoofers work in small enclosures. Both in reflex and sealed enclosures. Affordable elements available with 2×2 Ohm and 1x2 Ohm voice coils. The IK series elements offer very good sound quality in a small enclosure.

Power handling RMS / max.    P    300 / 600 Watts

Impedance     Z    2 x 2 Ω

DC resistance     Re   2 x 1.8 Ω

Resonance frequency     Fs    36 Hz

Mechanical Q factor     Qms   5.41

Electrical Q factor     Qes    0.52

Total Q factor    Qts    0.48

Compliance    Cms   95 μm/N

Equivalent air volume    Vas    40 L

Force factor     B*I    17.2 Tm

Sensitivity     SPL   91.0 dB @ 2.83V / 1m

88.0 dB @ 1W / 1m

Cone area     Sd   523 cm²

Moving mass    Mms    220 g

Cone material     Sandwich paper cone

Mechanical resistance    Rms    7.9 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   316 mm / 12.44″

Installation diameter    ø   276.8 mm / 10.90″

Installation depth      95.5 mm / 3.76″

            

Recommended enclosure volumes

       

Sealed box        

Net volume        22 L

Lower limiting frequency (-3dB)       39 Hz

Recommended DSP settings         Recommended ″self-define″ highpass filter with 35 Hz cut-off frequency and Q = 1.5

additional EQ filter 75 Hz / Q = 1.5 / -3 dB

         

Vented box         

Net volume      40 L

Port diameter    ø   100 mm / 3.94″

Port area      78 cm²

Port length      32 cm / 12.6″

Port tuning frequency    Fb    36 Hz

Lower limiting frequency (-3dB)        37 Hz

Recommended DSP settings       Recommended ″self-define″ highpass filter with 36 Hz cut-off frequency and Q = 1.0

additional EQ filter 75 Hz / Q = 0.7 / -2 dB



Scope of delivery

1 x Subwoofer HELIX IK S12-DVC2

1x Grille

1 x Gasket

1x Enclosure connecting terminal

1 x Data sheet