12 inch 300W professional powerful active audio subwoofer for home theater with auto standby function - AliExpress
400W high power, self-contained power supply, fever home theater subwoofer amplifier board/With automatic standby design - AliExpress
Amazon.com: Kanto YU4MW Powered Speakers with Bluetooth and Built-in Phono Preamp | Auto Standby and Startup | Remote Included | 140W Peak Power | Pair | Matte White : Electronics
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My KEF HTB2 bass speaker is stuck in standby mode. I plugged it into a Yamaha HTR-2067 it worked amazingly for a few hours but then I heard a click and the
R-40PM - Disable Auto-Standby – Klipsch
12 inch 300W professional powerful active audio subwoofer for home theater with auto standby function - AliExpress
Klipsch Reference Series R-110SW - Subwoofer - 200 Watt - 10" - black - Walmart.com
Amazon.com: Kanto YU4GB Powered Speakers with Bluetooth and Built-in Phono Preamp | Auto Standby and Startup | Remote Included | 140W Peak Power | Pair | Gloss Black : Electronics
Subwoofer Auto-On / Standby Fixes | AV Gadgets
Neumann KH 750 AES67 - DSP-Controlled Subwoofer with AES67 Input
Source 12 inch 300W professional powerful active audio subwoofer for home theater with auto standby function on m.alibaba.com
C-7030-Basic Operations – Onkyo Product Support
QSC KLA181 18 Inch 1000 Watt Active Line Array System Subwoofer | Reverb