these subwoofers have set standards in all SPL competitions worldwide and have been recognized by numerous test magazines for top performance

sein hochwertigen und qualitativen Aufbau

Leistungsstarker Ferritmagnet

and maximum reliability—exactly what B2 Audio is known for worldwide

- hexa grille

GZCT 4000X Bezug these subwoofers have set standardsGround Zero Competition Serie The experience of a real concert atmosphere or a club feeling requires professionally high SPL levels. However, this requires very special and powerful speakers and amplifiers. The development department of GROUND ZERO does not compromise when the purpose of the product is so clear. For this reason, a COMPETITION product is the right choice for demanding customers with high SPL expectations. 44. 5 mm compression tweeter