GZCS 200BMW-SW

Powerful sound thanks to the 2 (50 mm) copper voice coil of the Ground Zero GZCS 200BMW-SW

The Ground Zero GZCS 200BMW-SW is equipped with a remarkable 2 (50 mm) copper voice coil, which ensures first-class power delivery. This substantial voice coil size promotes excellent heat dissipation, ensuring a continuous power handling of 80 watts RMS and a maximum power output of 160 watts. Compared to typical voice coils in car hi-fi subwoofers, which are often smaller, this size offers superior thermal management, which is particularly important at high output loads. While a larger voice coil might result in a somewhat sluggish response, the Ground Zero subwoofer cleverly balances this with the incorporation of a highly efficient neodymium magnet, ultimately resulting in a more powerful bass foundation.

Efficient 2 Ohm version of the Ground Zero subwoofer

Another highlight of the Ground Zero GZCS 200BMW-SW is its 2-ohm impedance design. This lower resistance ensures greater sound volume for a given amplifier input, meaning this subwoofer can be driven with less power loss, making it particularly effective in high-energy sound environments. This impedance is ideal for extracting maximum power from your amplifier. If the subwoofer had a higher impedance, such as 4 ohms, it would draw less current from the amplifier and thus offer lower output. For use in a car, this lower impedance is advantageous for making optimal use of the available amplifier resources.

High-resonance 200 mm paper cone and rubber surround

The Ground Zero subwoofer utilizes a 200 mm pressed paper cone, known for its sonic precision and natural sound reproduction. This cone type improves sound dispersion and is ideal for deep bass frequencies. Combined with the rubber surround, the subwoofer extends its lifespan. While paper cones typically offer less robustness than more modern materials, the use of stabilizing coatings creates an uncompromising sound without skimming the material's integrity. A stiffer cone would produce less distortion at high levels, but at the expense of timbre.

Vehicle-specific connection and BMW compatibility

The Ground Zero GZCS 200BMW-SW enhances its user-friendliness through the inclusion of vehicle-specific connectors compatible with a wide range of BMW models. These include the popular 3 Series and 5 Series, as well as the sporty M3 and M4. This subwoofer fits seamlessly into existing systems of these vehicle series, thus simplifying the replacement of conventional speaker components in the car. Without the dedicated connectors, extensive modifications to the interior would be required, which could significantly complicate the installation process. Masori's support also enables on-site installation in Frankfurt (Oder) .

Plastic basket for stability and durability

Ground Zero utilized a sturdy plastic basket for the subwoofer, offering essential advantages for mounting and stability. Its construction perfectly secures the oscillating unit in conjunction with the diaphragm and voice coil, protecting these components from incompatibilities during installation and operation. The low natural resonance of plastic compared to metal prevents potential vibrations that could distort the sound. Metal baskets would theoretically be more resistant to temperature changes, but the lower resonance effect makes plastic an excellent choice for clean audio transmission.

Neodymium magnet for outstanding power output

The integrated neodymium magnet also contributes significantly to the performance of the Ground Zero GZCS 200BMW-SW. Unlike ferrite magnets, neodymium not only offers a more powerful magnetic field but also a more compact size. This strong magnetic force allows the voice coil and speaker to achieve greater sound resolution and accuracy, which is particularly important for bass reproduction. Using a weaker magnet, such as ferrite, would result in reduced subwoofer radiation, resulting in a weaker and less dynamic sound.

Frequency response of 38 – 250 Hz for precise bass reproduction

The Ground Zero subwoofer's frequency response of 38 to 250 Hz covers the essential bass spectrum, making it particularly suitable for use in BMWs. This frequency range allows for the production of deep and clear bass sounds that are seamlessly integrated into the car's soundscape. Typically, broader frequency ranges above 300 Hz offer a broader sound palette, but subwoofers specialize in the lower frequencies. A narrower frequency response could result in the loss of important bass tones, while a wider range could also capture less powerful highs.

The efficiency of 87 dB for high efficiency

The Ground Zero GZCS 200BMW-SW achieves an efficiency of 87 dB, which is remarkable for a subwoofer in this segment. This efficiency indicates how much sound energy the subwoofer emits compared to the input power. A higher efficiency means less energy consumption at the same volume. If this value were lower, e.g., 83 dB, more power would be required from the amplifier system to achieve the same volume. Increased efficiency, as in this subwoofer, ensures effective energy utilization, which is particularly advantageous in mobile applications.

Pair supplied per package

The Ground Zero GZCS 200BMW-SW comes in a practical twin pack, making it easy to equip your vehicle with two identically powerful subwoofers. This means both the left and right audio channels are perfectly covered, optimizing stereo imaging and intensifying the sound experience. Supplied with only a single subwoofer, the even distribution of bass sound throughout the vehicle would not be guaranteed. Thus, the twin pack is both an economical and acoustically sound decision for a balanced soundscape.