QUEST QM18S ลำโพงซับวูฟเฟอร์ มีแอมป์ในตัว
The QM18SA is an active powered 18″ sub woofer which is suitable for both mobile applications and installation. The QM18SA features inbuilt 24bit/96kHz processing. The Class D amplifier produces a continuous 1000 watts of power and is matched with a high efficiency 18″ woofer. The cabinet size and shape has been optimised to achieve a balance between portability, SPL and bass depth while weighing less than 41kg.