STX Audio STX1500US 10-Inch Amplified Subwoofer 5x7 Inch Speakers or dimensional specifications for this

or dimensional specifications for this individual model

while the integrated crossover point is specified at 6 kHz

and neodymium magnet

the APS 10 S4S is built for properly amplified bass duty in a sealed system

STX Audio STX1500US 10-Inch Amplified Subwoofer 5x7 Inch Speakers or dimensional specifications for thisThe STX Audio STX1500US is a compact amplified subwoofer designed to add low frequency reinforcement without requiring a separate external amplifier or a large subwoofer enclosure. Its integrated 10 inch woofer and built in amplifier make it a practical option for vehicles with limited available space. The slim 68 mm profile is intended for installations beneath a seat or in shallow cargo area locations. This model is suited to drivers who want more