Audio for Video Part I: The Basics - Rocky Mountain School of Photography - Blog
Amazon.com: Headset Buddy Line-Level Audio Adapter with Built in Attenuation for iPhone, Smartphones, Soundboards and Mixers (iPhone-Mic-Line) : Electronics
Audio Signal Levels Explained: Mic, Instrument, Line, and Speaker | Black Ghost Audio
Headset Buddy Mic-Line Pro - 3.5mm Male to 1/4 inch Male Line Level Audio Adapter
Sescom Dual Female XLR to 3.5mm TRRS Plug - Line to
Line-Level Camera to Mic Recording Cable | DSLR Attenuator Adapter
What's In The Box? Understanding USB Audio Devices - Samson Blog
For Technics RS-1500US Reel To Reel Knobs Record Level Mic Or Line LT#1 Used | eBay
Vintage Sony PS-LX250H Record Player - Line Level and Phono Level Outputs | eBay
Radial News: Snarky Puppy Relies on Radial DIs and Line Level Splitters to Record Seventh Live | Bass Gear Magazine
What's the Difference Between Line and Mic Levels? - Shure USA