Axton ATS-BSUB4 - 20 cm Underseat Subwoofer, compatible with BMW vehicles, 150 W RMS, 4 Ohm impedance, 1 pair

The ATS-BSUB4 underseat subwoofer is a perfect addition to the BMW-compatible Axton speaker systems, allowing for the retrofitting of an underseat subwoofer in BMWs or replacing a factory system. This powerful pair of subwoofers is designed for installation under the seats, fits perfectly into the original mounting locations, and can be easily connected to the original plugs thanks to the Plug & Play connection terminal.

The 20 cm woofer of the ATS-BSUB4 features an enhanced version of the new Axton CRYSTAX membrane. It consists of a highly damped paper membrane that produces a harmonious sound, coated with extremely hard quartz crystals. These crystals provide the desired precision in sound reproduction with their exceptionally high rebound response.

The entire moving assembly - membrane with rubber surround, Nomex centering spider, and 2 voice coils (4 Ohm) - is securely held in the newly designed composite basket with the distinctive Axton design. The basket, along with the metal support, offers excellent stability and nearly unobstructed sound radiation. The powerful neodymium magnet ensures the necessary power and delivers a defined, impressively strong bass with deep extension.

Underseat subwoofer for BMW vehicles

8/20 cm Axton CRYSTAX membrane

Custom-fit speaker design

Vehicle-specific connections

The ATS-BSUB4 is compatible with BMW E6x, E7x, E8x, E9x, F0x, F2x, F3x, F4x, F5x, F8x, G11, G12, G30, G31, G38, I8, and Mini models F5x, F60, R60, R61.

Delivery includes:

1 pair, each subwoofer: 150 W RMS, 300 W max total, impedance: 4 Ohm, frequency response: 35 Hz - 200 Hz, installation diameter: 192 mm, installation depth: 31 mm.