Linear Series LS4000B RV CD Stereo + LS-20 40W Amplifier w/ Sub Output

This is a Linear Series LS4000B RV entertainment system paired with the matching LS-20 40-watt amplifier, removed from a camper when it was nearly new. Both units are in excellent, like-new condition and fully functional.

This setup is ideal for RV, camper, trailer, boat, or custom mobile audio installations, especially if you want a compact system with a dedicated external amplifier and subwoofer support.

System Includes

• Linear Series LS4000B RV CD / AM-FM stereo head unit

• Linear Series LS-20 external 40W amplifier

• All original wiring harnesses (see photos)

• Wiring diagram pictured for easy installation

Key Features

• CD Player (3-beam laser pickup)

• AM/FM radio

• Compact RV-style chassis

• External amplifier design for cleaner output

• Subwoofer output via LS-20 amp

• Designed for 12V systems (RV / mobile use)

Amplifier Details (LS-20)

• 40W output

• Dedicated amplified speaker outputs

• Subwoofer output support

• Clearly labeled wiring (shown in photos)

Condition

• Removed from a camper when it was almost new

• Very clean, minimal to no signs of use

• Fully functional and tested

• No missing components

Notes

• Intended for RV/mobile installations (12V power)

• Please review photos carefully for wiring and connector details