Compact in size but huge in sound. The K-Series enclosure subwoofers don´t show any mercy when their powerful beats excite you.

Smart downfire housing design

Lots of technical finesse was necessary to fulfill the demands of SPL junkies and audiophile music lovers at the same time. The design of the downfire subwoofer is aimed using the floor as a reflection surface. It also allows a flatter design so that the woofer can be stored under the false floor in the trunk to save space.

Sophisticated technology

Rock-solid cones made from hand-scooped paper in combination with heavy-duty voice coils easily transform the power of your amplifier into loads of sound pressure without neglecting neither acoustical details nor sonic precision.

Flexible connection

The double voice-coil design offers more flexibility when selecting an appropriate power amp. No matter if 1 x 4 Ohms, 2 x 2 Ohms or 1 x 1 Ohm – these "deep bass warrantors" make any configuration easily possible.



10“ / 250 mm high excursion woofer with hand-scooped paper cone and dual voice coil

Downfire enclosure technology for perfect protection of the speaker and ideal bass dispersion in the vehicle

Sturdy carpet surface with embroidered HELIX logo

Plugable screw terminal for a quick and safe installation or removal

Voice coil impedance configurable via connection terminal – 2 x 2 Ohms or 1 x 4 Ohms

Compact enclosure dimensions

Technical data

Power RMS / max. P 300 / 600 Watts

Impedance z 2 x 2 Ω / 1 x 4 Ω

Max. linear excursion Xmax +/- 8.0 mm

Port tuning frequency Fb 43 Hz

Efficiency 1 W / 1 m SPL 89 dB

Dimensions (H x W x D) 187 x 470 x 375 mm /

7.4 x 18.5 x 14.8”

Recommended DSP settings Recommended "self-define" highpass filter with 37 Hz cut-off frequency and Q = 1.5,

additional EQ filter 115 Hz / Q = 0.7 / -2 dB

Scope of delivery

1 x Downfire enclosure subwoofer HELIX K 10E.2

1 x Data sheet

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