15" (38cm) subwoofer

A 15-inch subwoofer has a diameter of 38 cm. The overall dimensions including the basket typically range from 40-42 cm, while the mounting depth varies between 15-25 cm depending on the model. For comparison: 10-inch subwoofers measure only 25 cm in diameter and therefore require less installation space.

It depends on your sound preferences. Sealed enclosures deliver precise, controlled deep bass with excellent transient response. Ported designs maximize efficiency and produce more sound pressure at the same power level. The optimal enclosure volume is between 60 and 100 liters.

The amplifier's power should match the subwoofer's RMS power handling. For precise deep bass, 800 watts RMS is enough, while SPL enthusiasts work with up to 10,000 watts. Important: the amplifier should be able to deliver at least 70% of the subwoofer's RMS rating.

An oversized enclosure leads to loose, imprecise bass and reduced sound pressure. The subwoofer can't optimally control its cone, resulting in poorer transient response and lower efficiency. That's why you should stick to the manufacturer's specifications for the optimal enclosure volume.

The optimal impedance depends on your amplifier. Common values are 2 Ohm or 4 Ohm. With dual voice coils, you can flexibly choose between different impedances. Make sure your amplifier supports the chosen impedance to ensure maximum power and stability.

15-inch subwoofers move more air, producing lower frequencies with higher sound pressure. They offer better bass below 30 Hz, higher power handling, and often better efficiency. They're especially ideal for large vehicles or PA applications where powerful bass is needed. While 8-inch subwoofers are designed for compact installation situations and 6.5-inch models are suited to space-saving solutions, 15-inch models dominate when it comes to depth and output capability.