Amazon.com: XANTECH SLLC1 Speaker Level To Line Converter (Discontinued by Manufacturer) : Electronics
BOSS B65N Speaker Level to Line Level Output Converter
Speaker level to line level attenuator | HiFiVision.com
Amazon.com: Scosche LOC2SL Line Output Converter Adjustable Amplifier Add On Module for Car Stereo, 2-Channel Signal Sensing Speaker Wire to RCA Adapter with Remote Control Knob, Black : Electronics
DIY Line Level Converter for cheapie amps so you can use a powered sub - Techtalk Speaker Building, Audio, Video Discussion Forum
Resistor ratings for line level converter | diyAudio
AX-ALOC710 | Axxess Integrate
Speaker-level inputs or line output converter (LOC)?
Jensen Transformers SP-2SX X 2-Channel Speaker To Line Level Converter | Full Compass Systems
Line Output Converters
Car Speaker RCA Line Level Converter Car Stereo Audio Output Converter & Wiring | eBay