QTX QS Series 15 Inch / 380mm Replacement Speaker Driver

The QTX 902.512UK is a high-performance 15-inch (380mm) replacement driver, engineered as a direct replacement for the QS15 (178.568UK) and QS15A (178.569UK) speaker units. This robust woofer is designed to deliver powerful, reliable bass reproduction, making it an essential spare part for maintaining and upgrading compatible QTX loudspeaker systems.

Constructed with a substantial 1.4kg (50oz) magnet structure and a large 62mm (2.5-inch) voice coil, this driver is built to handle significant power. It features an impressive maximum power handling of 700W and a continuous RMS power rating of 350W at 8 ohms impedance, ensuring it can cope with demanding audio applications without distortion or damage. The high sensitivity of 101dB at 1W/1m means it produces loud, clear sound even with moderate amplifier power, maximising efficiency.

The driver offers a frequency response from a deep 42Hz up to 5kHz, providing solid low-end extension and clear mid-range definition. Its durable construction and precise engineering ensure consistent performance and longevity, making it a trusted choice for professional audio repairs and upgrades. The unit is supplied as a panel-mount driver, ready for installation into your existing enclosure.

Key Specifications

• Driver Type: Woofer
• Diameter: 15 inches / 380mm / 38cm
• Impedance: 8 Ohm
• Power Handling (RMS): 350W
• Power Handling (Max): 700W
• Frequency Response: 42Hz - 5kHz
• Sensitivity (SPL): 101dB @ 1W/1m
• Voice Coil Diameter: 62mm (2.5 inches)
• Magnet Weight: 1.4kg (50oz)
• Magnet Size: 156mm x 20mm
• Overall Weight: 4.52kg
• Dimensions: 151mm x 385mm Ø

This replacement driver is an authentic QTX component, guaranteeing perfect compatibility and restoring your QS Series speaker to its original specification and performance quality.