Q. Can I 're-amp' a line-level signal?

Q. Should I pad or DI a line-level signal?

Improved demodulated phase signal resolution for carrier signals

What are line output converters?

Recording, Page 20

Recording, Page 19

How to connect a line signal to a guitar amp - Quora

Discrete 8 Pro Synergy Core

Recording, Page 53

Introduction to the Amplifier an Amplifier Tutorial

Mutiple input/output interfaces: with 3.5mm AUX/stereo RCA/5-DIN inputs and stereo RCA/5-DIN outputs, can be compatible with most low-volume audio

Mini Stereo Line Level Booster Amplifier Audio Preamp 20dB Gain Volume Control

Recording, Page 30

Are these Line Output Converters any good? : r/CarAV

How do audio signals work? How voltage and sound intertwine

Mixing / Production, Page 11