Connecting two high level subs - Everything Else - PS Audio
Sugden Audio - #FAQ How do I connect a subwoofer to my amplifier? Most subwoofers used in a high-end audio system have two inputs called HIGH and LOW. The LOW input is
MJ Acoustics BASS-IC High Level Subwoofer Cable at Audio Affair
Subwoofer How-To Class D High Level Connection w/ REL - YouTube
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Amazon.com: Pyle 8-Inch Low-Profile Amplified Subwoofer System - 600 Watt Compact Enclosed Active Underseat Car Audio Subwoofer with Built in Amp, Powered Car Subwoofer w/Low & High Level Inputs PLBX8A,Black : Electronics
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Sr5210 OEM Brand Non-Press Cone High Level Woofer 450W RMS 10 Inch Subwoofer, Big Power Car Speakr with Aluminum Basket Speaker - China Car Speaker, Shadow Subwoofer | Made-in-China.com
Breeze Audio 3116 - OK to connect 'high level input' to subwoofer? | diyAudio