Details

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MARTIN ROLAND | 11” Spare Wheel Active Subwoofer (500W RMS / 800W Max)

Low Impedance • Plug & Play • Hidden Installation

Upgrade your in-car bass experience without sacrificing boot space. This 11-inch low-impedance active spare wheel subwoofer is designed to fit seamlessly into most 15-inch and above spare wheel compartments, delivering powerful, clean, and deep bass while remaining completely hidden.


 

Item	Details
Supply Voltage	14.4V DC
RMS Power	500W
Max Power	800W
Enclosure Type	Sealed
Impedance	0.25Ω (Single Speaker)
Frequency Response	20Hz – 150Hz
Variable Crossover	50Hz – 150Hz
Signal-to-Noise Ratio	92dB
Input Level	Speaker Input + RCA Input
Phase Control	0° / 180°
Speaker Size	11” Woofer (254mm × 254mm)
Recommended Spare Wheel Size	Fits 15" spare wheel and above

Key Features

• Aluminium Die-Cast Heatsink for excellent heat dissipation
• Plug & Play Wiring System – fast and easy installation
• Aluminium Cone Woofer for strong, accurate bass
• Built-In 800W Peak Power Amplifier
• Hidden Installation – installs inside your spare tyre compartment
• Automatic ON/OFF (works with speaker level & RCA input)
• Easy Removal & Service-Friendly
• Space-Saving Design – keeps your boot neat and uncluttered

Perfect For

• Drivers who want deep bass without losing boot space
• Cars with 15-inch or larger spare wheel compartments
• Those upgrading from factory sound to a more powerful low-end