Detailed Product Description

Amplifier:                        AC-480,          AC-580,         AC-680
1) 8Ω stereo power:         450W x 2;       550W x 2;       650W x 2
2) 4Ω stereo power:         675W x 2;       825W x 2;       975W x 2
3) 8Ω bridge power:         1350W ;          1650W ;          1950W
4) Frequency response:        20Hz - 20KHz, -3dB@100kHz
5) THD+N(20Hz-20KHz):                         <0.05%
6) Voltage gain:                 40dB              41.2dB             42.5dB
7) S/N rate:                                             ≥95dB
8) Slew rate:                     32V/μs            35V/μs             38V/μs
9) Damping factor:                                   >300
10) Input sensitivity:            1.0V                1.0V              1.0V

12) Output Circuitry:           Class AB        Class AB         Class AB

13) Cross talk:                                          70dB 

14) Cooling:                       Two variable speed fans,rear-to front air flow

15) Connectors:                 Input:XLR,6.3 kalon; Output: Speakon

16) Controls:  Front:AC switch,Ch1 and Ch2 gain knobs; Rear:Sensitivity switch,GND switch,Stereo/Parallel/Bridge switch,30Hz low cut switch,clip limiter switch,150Hz low pass switch

17) Indicators:  Front:STANDBY-orange LED,POWER-Blue LED,SIGNAL-Green LED,CLIP-Red LED,PROT-Red LED;Rear:Bridge-orange LED.
18) Amplifier Protection: short circuit,thermal,over load,clip limiter,DC voltage,soft start,ultrasonic and RF protection.
19) Grounding height: 3U
20) Outer packing:
     Dimensions:                           565 x 555 x 23mm
     G.W./N.W.:                 29kg/27kg,      30.4kg/28.4kg,      31.2kg/29.2kg

AMPLIFIER FEATURES:
1)3U height construction
2)high effictive cooling system designed.its performance is reliable
3)Classical circuit designed,sweed minute sound
4)HI-FI tonic high quality spare part
5)Toshiba pairs transistors output
6)Efficient , nonpolar,variable fan cooling system.
7)suitable for gymnasium,large show,discopub,etc.