Valcom V-1094A Page Port Preamp Expander 4X70R38791-TM And with a built-in speaker

And with a built-in speaker

ASRock B450M STEEL LEGEND Socket AM4/ AMD Promontory B450/ DDR4/ Quad Crossfire/ SATA3&USB3

with desktop CPU cores

with thousands of apps

Valcom V-1094A Page Port Preamp Expander 4X70R38791-TM And with a built-in speakerPage port preamp expander page port pre amp expander pre amplifies low level audio to remote sites provides virtually unlimited Expansion for any system (150 Valcom one way speakers per vc v 1094) Master volume control for entire system or groups of remote speakers isolates page port from speaker lines output Impedance: 600Ohm Power requirements: 24 VDC, 45 MA weight: 1. 1lbs Dimensions: 4. 44H x 2. 75W x 2. 88D Valcom Power unit ( 1)vcv1094a. V 1094A