Amplifier ( DA-4624)

Professional Amplifier own over temperature, over current, short circuit, UHF protection anti-surge, on/off protection

Professional amplifier DA-4624

Description:

Load impedance value detection technology, using the music being played as a detection signal to analyse the output voltage and current in time, getting the on-line load resistance results after fast operating. When less than 1.5Ω, it will initiate a soft protection limits power to guard against drive current. Recover output within 5 second after fault disappearing. Separate detection output signal of above 3Khz in 0.5 seconds of the signal voltage accumulated beyond high audio signal to activate the protection system, to reduce the damage of the anomalies in the process of using the HF driver. Small size machine, large power output.Four pairs of DC-free grade variable speed cooling fan, 45 degrees from the control transfer. 

Technology reference :

Item	Units	Descriptions
Stereo power Rating 8Ω	Watts	600 X 2 +400 X 2
Stereo power Rating 4Ω	Watts	900 X 2 + 600 X 2
S/Nratio	dB	110
Damping coefficient		600:1
Frequency response	dB, Hz	±0.1, 20-20k
THD Degree		‹=0.01%,( 8Ω rms,1kHz)
Sensitivity	V	0.775
Input impedance	k	10/20, balance/ unbalance
Input gain	dB	<=-75
Sound channel separating degree	dB	>=-70
Panel lamps		Signal, ON( power),clipping; protection
service voltage	v/Hz	AC220/50
GW	kg	31
Dimensions	mm	483 x 512 x 88

Amplifier ( DA-4624)