The Kramer 4x4A is a high-performance switcher for stereo audio signals. It switches any one of four input signals simultaneously to four identical outputs.
Kramer Electronics 4x4A Audio Features
S/N Ratio - 90dB
Level (Gain) Control
Compact Kramer TOOLS - 3 units can be rack mounted side-by-side in a 1U rack space with the optional RK-3T rack adapter