Helix IK E8.1-SVC2 Sub 8 Inch Downfire Compact Subwoofer Enclosure 300w RMS
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The Helix IK E8.1-SVC2 is a compact 8 inch (200 mm) downfire ported subwoofer enclosure rated at 300W RMS, fitted with a single 2 ohm voice coil. It is part of the Helix IK range.
This listing is the single voice coil (SVC2) version. The IK E8.1 is also available as the dual voice coil IK E8.1-DVC2.
Key specifications
- Size: 8 inch / 200 mm downfire ported enclosure
- Power handling: 300W RMS
- Recommended amplifier power: 150–300W RMS
- Impedance: 1 x 2 ohm
- Sensitivity: 91 dB @ 2.83V / 1m, 85 dB @ 1W / 1m
- Port tuning: 43 Hz
- Dimensions (H x W x D): 184 x 310 x 285 mm
- Chassis: HELIX IK W8-SVC2
Compact and efficient design
The ported enclosure delivers strong sound pressure and deep bass in a small footprint. The 8 inch (200 mm) subwoofer uses a hand-scooped paper cone for rich, powerful low-frequency performance throughout the vehicle.
Comfortable installation and configuration
A pluggable screw terminal makes installation and removal fast and secure. The single 2 ohm voice coil is designed to maximise power output from your amplifier.
Built for durability
The enclosure is finished in sturdy carpet with an embroidered Helix logo. Feet fitted with Velcro tape keep the unit stable and secure inside the vehicle.
Features
- Downfire enclosure for ideal bass dispersion and speaker protection
- Compact ported design for high sound pressure and space-saving fitment
- 8 inch / 200 mm subwoofer with hand-scooped paper cone
- 1 x 2 ohm single voice coil for maximum amplifier power output
- Pluggable screw terminal for quick and safe installation and removal
- Feet with Velcro tape for a secure stand in the vehicle
- Sturdy carpet surface with embroidered Helix logo
Explore the full range in Helix Subwoofers.
Specification
| Power handling | RMS P 300 Watts |
|---|---|
| Impedance | z 1 x 2 Ω |
| Sensitivity | SPL 91 dB @ 2.83V / 1m 85 dB @ 1W / 1m |
| Dimensions | (H x W x D) 184 x 310 x 285 mm 7.2 x 12.2 x 11.2" |
More specs
| |
What's Included
- 1 x Downfire enclosure subwoofer IK E8.1-SVC2
1 x Data sheet
Helix
About the Helix K330810
From our tech experts at CEN
An 8 inch subwoofer supplied in its own compact enclosure, firing downwards so it can sit under a seat or in a footwell and use the floor to couple into the cabin.
Who it suits
Drivers who want real bass without losing the boot or commissioning a custom build. Compact enclosures suit cars, vans and campers where space is the binding constraint.
Our tech experts advise
Even a matched enclosure needs the amplifier set correctly and the crossover point chosen against your front speakers, otherwise it draws attention to itself instead of filling in underneath. Installation and tuning are priced per vehicle, so get in touch with your make, model and year and we will confirm what it needs. See car audio installation.
Explore the full Helix range at CEN, with fast UK dispatch and expert advice from our Nottingham team. Shop all Helix
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Have it Fitted By Our Team
Our team fits car audio, stereos, dash cams and vehicle security at our workshop in Beeston, Nottingham. Tell us your vehicle and we'll confirm the parts and a fitted price.
- 1
Tell us your vehicle
Make, model and year, and what you'd like fitted.
- 2
We confirm the parts
Fascia, wiring and interfaces checked for your car, with a fitted price.
- 3
Fitted at our workshop
Bring it to our Beeston workshop and we do the rest.
Unit 25 Technology Drive, Beeston, Nottingham NG9 1LA
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Helix IK ES10.1-DVC2 Subwoofer 10 Inch Downfire Shallow Sub Enclosure 300w RMS
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Helix IQ W12-DVC2 Performance Subwoofer 12 Inch Dual Voice Coil Sub 750w RMS
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Helix IQ W8-DVC2 Performance Subwoofer 8 Inch Dual Voice Coil Sub 750w RMS
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Helix IK S10-DVC2 10 Inch Dual 2 Ohms Subwoofer 300w RMS
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Frequently Asked Questions
Q: Do I need an amplifier for this subwoofer?
A: Yes, unless it is an active (powered) subwoofer with a built-in amplifier. Passive subwoofers need an external amplifier matched to the RMS power and impedance shown in the Specification tab.
Q: What does RMS power mean?
A: RMS is the continuous power a subwoofer can handle, and it is the number that matters when matching an amplifier. Peak or max figures describe short bursts only. Match your amplifier output to the RMS rating in the Specification tab.
Q: Can CEN build or supply an enclosure and fit everything?
A: Yes. CEN supplies enclosures and offers professional installation from our Nottingham premises, including amplifier wiring. Contact us to discuss your build.
Q: What impedance is the IK E8.1-SVC2?
A: It has a single 2 ohm voice coil (1 x 2 ohms), chosen to get the maximum power output from the amplifier.
Q: What amplifier power does the IK E8.1-SVC2 need?
A: HELIX recommends 150 to 300W RMS. The enclosure is rated at 300W RMS.
Q: How big is the IK E8.1-SVC2?
A: It measures 184 x 310 x 285 mm (H x W x D).
Q: What's in the box with the IK E8.1-SVC2?
A: The IK E8.1-SVC2 downfire enclosure subwoofer and a data sheet.
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