Helix IK E8.1-SVC2 MK2 – compact 8″ downfire subwoofer with 1 x 2 Ω voice coil
The IK E8.1-SVC2 MK2 is the single-voice-coil version of the HELIX IMPACT IK E8.1 MK2 downfire enclosure. Its small footprint and strong low-frequency output suit installations where space is limited but bass performance still counts.
The ported enclosure is designed for high SPL and deep extension for its size, and the 1 x 2 Ω voice coil lets compatible amplifiers deliver their maximum power. The MK2 plug-in terminal adds a MOLEX connector in line with the plug & play logic of the MATCH ecosystem.
Key Features
- Downfire design: Spreads bass through the vehicle and protects the driver.
- Compact ported enclosure: Bass-reflex tuning at 43 Hz for high SPL in a space-saving format.
- 200 mm IK W8-SVC2 driver: High-power, long-excursion single voice coil with a hand-scooped paper cone for bass with minimal compression.
- 1 x 2 Ω single voice coil: For maximum amplifier output.
- Recommended amplifiers: HELIX AMPLIFY 201 X-OVER, HELIX AMPLIFY 201 DIRECT and MATCH UP 1FX are listed as compatible.
- Plug-in MK2 terminal: The new detachable terminal provides a screw connection for ordinary speaker cable plus a standardised MOLEX connector for custom wiring harnesses – HELIX flexibility combined with the plug & play approach of the MATCH ecosystem.
- Short-circuit protection: Because the plug is removed together with the cable, no bare wire ends are left loose in the vehicle, and the enclosure can be taken out and refitted in seconds.
- Secure placement: Velcro-backed feet.
- Durable finish: Carpet covering with an embroidered HELIX logo.
Drivers & Construction
One integrated HELIX IK W8-SVC2 chassis (200 mm / 8″) with hand-scooped paper cone and a single 2 Ω voice coil, firing downwards in a carpeted bass-reflex enclosure.
Acoustic Performance
- Power handling: 300 W RMS; recommended amplifier power 150–300 W RMS
- Impedance: 1 x 2 Ω
- Linear excursion (Xlin): ±8 mm; maximum mechanical excursion (Xmax): ±17 mm
- Port tuning frequency: 43 Hz
- Sensitivity: 91 dB @ 2.83 V / 1 m; 85 dB @ 1 W / 1 m
Installation Notes
- Dimensions (H x W x D): 184 x 310 x 290 mm (7.2 x 12.2 x 11.42″)
- Recommended DSP settings: “Self-define” high-pass at 44 Hz, Q 1.6; EQ filter at 115 Hz, Q 0.9, −3.5 dB
Technical Specifications
| IK E8.1-SVC2 MK2 – 1 x 2 Ohms | ||
| Power handling RMS | P | 300 Watts |
| Recommended amplifier power | RMS | 150 – 300 Watts |
| Impedance | z | 1 x 2 Ω |
| Max. linear excursion | Xlin | +/- 8 mm |
| Max. mechanical excursion | Xmax | +/- 17 mm |
| Port tuning frequency | Fb | 43 Hz |
| Sensitivity |
SPL |
91 dB @ 2.83V / 1m |
| Dimensions (H x W x D) |
184 x 310 x 290 mm |
|
| Integrated subwoofer chassis | HELIX IK W8-SVC2 | |
| Recommended DSP settings | “Self-define” highpass 44 Hz / Q = 1.6; EQ filter: 115 Hz / Q = 0.9 / -3.5 dB |
Scope of Delivery
1 x Downfire enclosure subwoofer IK E8.1-SVC2 MK2
1 x Data sheet
