How to Connect a Subwoofer to Powered Speakers - Vanatoo
Can I connect speakers which are not active, to my active subwoofer? In other words can the subwoofer's integrated amplifier also drive speakers? - Quora
Receiver with no sub preout, can I use a powered subwoofer? : r/hometheater
Subwoofer Connection - Speakers, Soundbars and Subwoofers - StereoNET International
Pyle Active Down Firing Subwoofer - 10 Inches, Ported Design with High-to-Low Input Level Controller, Invisible Down-Firing Speaker, Color Black, Built-in Convenience - PSUB10A : Musical Instruments