HELIX IK W12-SVC2 12" Subwoofer – 300W RMS, 2Ω | Compact & Powerful Bass

HELIX IK W12-SVC2 - 12" 300W RMS Subwoofer | 2Ω

If you’re after a subwoofer that delivers powerful, precise bass without hogging your vehicle’s space, the HELIX IK W12-SVC2 is your go-to choice. Designed for car audio enthusiasts who demand the best, this 12" 300W RMS subwoofer packs a punch in very compact enclosures, making it perfect for custom car audio builds where efficient space usage is a must.

Stunning Bass Performance Out of Compact Dimensions

With the innovative KW chassis, HELIX expands its IMPACT subwoofer lineup, offering drivers that create completely new installation possibilities. Whether you’re working with tight spaces or designing a custom setup, the IK W12-SVC2 fits perfectly without compromising acoustic performance. This subwoofer is ideal for anyone wanting maximum performance from a compact enclosure.

Clever Down to the Last Detail

The IK W12-SVC2 features an extremely stiff cone made from hand-scooped paper fibers, paired with a heavy-duty driver system. This combination converts amplifier power easily and without compression effects into loads of sound pressure — delivering rich, subtle beats with outstanding impulse response. The double ventilated voice coil ensures minimum compression effects and high power handling, making this subwoofer reliable even at high volumes.

Flexible Connection for Every Amplifier Configuration

Available as a single 2Ω voice coil (SVC2), the HELIX IK W12-SVC2 is designed to fit a variety of amplifier configurations, whether you’re running a mono, 2-channel, or multi-channel amplifier. This flexibility guarantees you get the maximum performance from your amplifier power, no matter your setup.

All-Inclusive for Self-Made Enthusiasts

Every subwoofer comes with a solid protective grille and gasket, providing perfect magnet protection and rugged durability. For DIY installers, the technical data sheet includes detailed recommendations for sealed and vented enclosures, including net volume, port tuning frequency, and DSP settings for optimal bass performance.

Features

• 1 x 2 Ohms single voice coil for flexible system configuration

• Extremely stiff, hand-scooped paper cone for outstanding impulse response

• Double ventilated voice coil minimizes compression effects and enhances power handling

• Long-excursion rubber surround for highest mechanical rating

• Solid push terminals for reliable connections

• Powerful magnet system designed for compact enclosures

• Rugged magnet cover with HELIX lettering for perfect magnet protection

• Grille and gasket included in delivery for complete installation readiness

Technical Specifications

The HELIX IK W12-SVC2 subwoofer has a power handling capacity of 300 Watts RMS and a maximum power of 600 Watts. It features a single 2 Ohm impedance with a DC resistance of 2.0 Ohms. The resonant frequency (Fs) is 31 Hz, contributing to its ability to produce deep bass. Mechanical Q factor (Qms) is 4.03, electrical Q factor (Qes) is 0.54, and total Q factor (Qts) is 0.47, indicating balanced mechanical and electrical damping.

The compliance (Cms) measures 142 μm/N, and the equivalent air volume (Vas) is 53 liters, which relates to the subwoofer’s suspension characteristics. The force factor (B*I) is 11.9 Tm, reflecting the motor strength. Sensitivity is rated at 95.0 dB measured at 2.83V/1m, ensuring efficient sound output.

The cone area (Sd) is 515 cm², with a moving mass (Mms) of 146 grams. The cone is made from hand-scooped paper fibers for excellent impulse response. Mechanical resistance (Rms) is 9.20 kg/s.

The voice coil diameter is 50.8 mm with a winding height of 24 mm, designed for durability and efficient heat dissipation. The maximum linear excursion (Xmax) is +/- 8.0 mm, allowing for powerful bass output without distortion.

The subwoofer’s outer diameter is 316 mm (12.44 inches), with a mounting diameter of 286 mm (11.26 inches) and an installation depth of 144 mm (5.67 inches), making it suitable for very compact enclosures.

Recommended Enclosure Volumes & DSP Settings

Sealed Box

• Net volume: 22 L

• Lower limiting frequency (-3dB): 40 Hz

• DSP Highpass: 37 Hz / Q = 1.5

• EQ Filter: 80 Hz / Q = 1.3 / -3 dB

Vented Box

• Net volume: 40 L

• Port diameter: 100 mm / 3.94"

• Port area: 78 cm²

• Port length: 35 cm / 13.8"

• Port tuning frequency (Fb): 34 Hz

• Lower limiting frequency (-3dB): 37 Hz

• DSP Highpass: 34 Hz / Q = 0.8

• EQ Filter: 80 Hz / Q = 0.7 / -2 dB

What’s in the Box?

• 1 x Subwoofer HELIX IK W12-SVC2

• 1 x Solid protective grille

• 1 x Gasket

• 1 x Technical data sheet

Upgrade your car audio system with the HELIX IK W12-SVC2 — designed for enthusiasts who want outstanding bass, compact dimensions, and flexible installation options. Perfect for sealed and vented enclosures, this subwoofer delivers maximum performance and acoustic excellence every time.