Elvox 930a Speech Amplifier
 
The Elvox 930a Speech Amplifier unit (type 930/000.04) 
 
 
Features:
 
	
Complete with loudspeaker and amplified electret microphone
	
To be mounted on 1200, 1300, 2500, 2550, PATAVIUM, 3300 and 8000 series entrance panels
	
Use with power supplies type 931, 931A, 931/0CT, 938A, 6450, 6837, 837/0CT, 833, and 6680
	
Equipped with mobile microphone (with extension)
	
To be used on two-channel open voice systems or on installations with audio function subject to Larsen effect