Features:

The ALPHA 4000 series Conference System provides the much required sound reinforcement at meetings while eliminating problems of poor intelligibility and acoustic feedback. The system is ideal for use in a variety of applications in Boardrooms, Large Conference Halls as well as open conferencing in Convention Centres. Unique Send/Return facility through a stereo jack in Central Amplifier CCA-4400. AC Mains & 24V DC operation. Central Amplifier is 19" rack mountable. Three Mic inputs and one Aux input for various user applications. 50W PA Amplifier for adequate sound reinforcement.

Specifications:

Line Output	17.5V DC/3A Max.; -34dBV (20mV)
Power Output	50W RMS at 2% THD, 90W Max.
Inputs	3×Mic 0.65mV/4.7kohms
	1×Aux 100mV/470kohms
Frequency Response	60-14,000Hz (± 3dB)
Signal to Noise Ratio	> 60dB
Tone Controls	Bass: -10dB at 100Hz
	Treble: -10dB at 10kHz
Preamp / Rec Output	200mV/600
Line Output	1V/1k
Send Output	200mV/600
Return Input	200mV/10k
Speaker Output	4, 8, 16 ohms, 70V & 100V
Power Requirement	AC: 220-240V, 50/60HZ
	DC: 24V (2×12V Car Battery)
Power Consumption	250VA
Protections	AC Fuse 1×3 Amp , DC Fuse 2×10 Amp
Dimensions	W482 × H88 × D295 mm
Weight	8.70kg
Accessories	1× Connection Cable CC-46
	1× Extension Cable CC-47
	1× Fuse 3 Amp, 1 × Fuse 10 Amp.