HELIX IK S8-SVC2 8" Slim Subwoofer – 300W RMS Powerful Bass for Compact Car Audio

Get deep, powerful bass with the HELIX IK S8-SVC2 8" slim subwoofer. 300W RMS, shallow mount, ideal for compact car audio setups. Includes grille & gasket.

If you're chasing deep bass without sacrificing space, the HELIX IK S8-SVC2 is your go-to 8-inch car audio subwoofer. Designed for enthusiasts who demand an absolutely stunning bass performance in compact enclosure designs, this subwoofer boasts an extremely low installation depth of just 80mm. It opens up new installation possibilities for tight spaces in your vehicle without any acoustic compromises.

The shallow HELIX IK S series uses large voice coils and a low resonant frequency to deliver powerful sound pressure that rivals larger dimensioned woofers. Whether you're upgrading your ride or building a custom system, the IK S8 is the right low bass specialist for your amplifier configuration.

Features

• Chassis with particularly low installation depth – perfect for compact enclosure designs and flat constructions where every millimeter of depth counts.

• 1 x 2 Ohms single voice coil (SVC2) for flexible amplifier matching.

• Magnet system with threaded hole on the back – a special highlight that enables screwing the woofer to the back panel of the enclosure, reducing enclosure vibrations even with thin walls.

• Extremely stiff sandwich paper cone paired with a heavy-duty drive system converts amplifier power into powerful bass frequencies without compression effects, while simultaneously demonstrating finesse on subtle beats.

• Long-excursion rubber surround designed for maximum mechanical durability.

• Rugged magnet cover with HELIX branding for perfect magnet protection.

• High quality connection terminal with gold plated screw terminals for reliable, corrosion-resistant connections.

• Includes a solid protective grille and gasket for a complete, all inclusive package tailored for DIY installations.

Technical Specifications

• Power Handling RMS / Max: 300 / 600 Watts

• Impedance: 1 x 2 Ω

• DC Resistance (Re): 2.0 Ω

• Resonance Frequency (Fs): 43 Hz

• Mechanical Q Factor (Qms): 7.79

• Electrical Q Factor (Qes): 0.53

• Total Q Factor (Qts): 0.50

• Compliance (Cms): 170 μm/N

• Equivalent Air Volume (Vas): 11 L

• Force Factor (B*I): 9.1 Tm

• Sensitivity: 91.0 dB @ 2.83V / 1m

• Cone Area (Sd): 222 cm²

• Moving Mass (Mms): 81 g

• Voice Coil Diameter: 50.8 mm

• Voice Coil Winding Height: 19 mm

• Max. Linear Excursion (Xmax): ±6.0 mm

• Outer Diameter: 213.4 mm / 8.40"

• Installation Diameter: 180.4 mm / 7.10"

• Installation Depth: 79.5 mm / 3.13"

Recommended Enclosure Volumes & DSP Settings

Sealed Box

• Net Volume: 10 L

• Lower Limiting Frequency (-3dB): 46 Hz

• DSP: Recommended "self-define" highpass filter with 46 Hz cut-off frequency and Q = 1.5; additional EQ filter 100 Hz / Q = 1.0 / -2.5 dB

Vented Box

• Net Volume: 10 L

• Port Diameter: 60 mm / 2.36"

• Port Area: 28 cm²

• Port Length: 42 cm / 16.5" (angled port)

• Port Tuning Frequency (Fb): 39 Hz

• Lower Limiting Frequency (-3dB): 45 Hz

• DSP: Recommended "self-define" highpass filter with 40 Hz cut-off frequency and Q = 1.2; additional EQ filter 100 Hz / Q = 0.9 / -2 dB

Why Choose the HELIX IK S8-SVC2?

This powered subwoofer driver is built for enthusiasts who want optimal bass performance in flat constructions or vehicles with limited mounting depth. Its low resonant frequency and large voice coil ensure that you get deep bass and high sound quality without compromising your car's interior space.

Thanks to the magnet system’s threaded hole, you can securely fix the subwoofer to the enclosure’s back panel, which effectively reduces enclosure vibrations and improves overall sound quality. The high sensitivity rating (91 dB) means it responds well to amplifier power, delivering powerful bass that you can feel as much as hear.

What’s in the Box?

• 1 x Subwoofer HELIX IK S8-SVC2

• 1 x Grille

• 1 x Gasket

• 1 x Enclosure connecting terminal

• 1 x Data sheet with detailed technical data and DIY installation recommendations

Upgrade your car audio system with the HELIX IK S8-SVC2 8" slim subwoofer — ideal for custom builds, tight spaces, and anyone who wants deep, clean bass without the bulk. This is the low bass specialist that delivers maximum performance with minimal installation depth. Get yours today and experience the difference a shallow HELIX IK S can make!