QTX 12 inch / 300mm Replacement Speaker Driver for QT Series

The QTX 902.542UK is a professional-grade 12-inch (300mm) replacement driver, designed as a direct replacement component for the QTX QT12 loudspeaker (model 178.409UK). This high-performance woofer delivers robust and reliable audio reproduction, making it an essential spare part for maintaining and repairing your QTX QT series speaker systems.

Engineered for durability and power handling, the driver features a substantial magnet structure weighing 850g (30oz) with dimensions of 120mm x 20mm. This provides the necessary magnetic force for accurate cone movement and efficient power conversion. The unit is rated for a maximum power handling of 300W, with a continuous RMS rating of 150W, ensuring it can handle demanding audio signals without distortion or damage.

With an impedance of 8 Ohms and a sensitivity of 93dB SPL at 1W/1m, this driver offers efficient operation and good output levels from compatible amplifiers. It delivers a frequency response from a deep 45Hz up to 6kHz, providing solid low-end punch and clear mid-range definition, ideal for full-range audio applications in portable PA and installation systems. Connection is made via robust spade terminals for a secure and reliable electrical contact.

Constructed with a 35mm (1.35”) voice coil, the driver is built to withstand the thermal and mechanical stresses of professional use. The overall unit has a diameter of 305mm (12”) and a depth of 121mm, with a total weight of 1.83kg, reflecting its solid construction. This replacement driver is the perfect solution to restore your QTX speaker to its original specification and performance.