A-B Audio Switching Box — AMERICAN RECORDER TECHNOLOGIES, INC.
A/B A+B Switch 1 IN - 2 OUT 2 Way Stereo Receiver Speaker Set Selector | eBay
MIDI Controlled A/B Box for Musical Instruments
Sescom SES-AUDIO-AB RCA Stereo Audio A/B Switcher | Full Compass Systems
AB Box with 2 inputs & 2 outputs (isolated, active, buffered) - dpFX Pedals
→ T-REX EFFECTS ← Pedals for guitar and bass players!
4 Channel Speaker Selector Switch - Multi Zone A B Speaker Distribution Controller Box W/ Independent Audio Source Volume Control, Supports Home Theater Stereo Amplifier Receiver System - Pyle Pslsw4 - Newegg.com
Stereo AB Switch (Switch Your Stereo Signal Between Two Stereo Outputs)
Ammoon LINEPAUDIO Audio Switcher RCA 2 in 1 Out / 1 in 2 Out A/B Switch Stereo Audio Splitter Box with No Distortion RCA Jack for Switching Between Computer Speakers and Headphones - Walmart.com
Sescom SES-AB-SWITCH Flip2 iPod/MP3 Player 3.5mm Stereo Audio A/B Swit