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1U 2 Channel Universal Power Supply 90-265V PFC Digital Power Amplifier
    Publish time 2020-03-26 17:29    
1U 2 Channel Universal Power Supply 90-265V PFC Digital Power Amplifier
1U 2 Channel Universal Power Supply 90-265V PFC Digital Power Amplifier 

AT SERIES

. Powerful output  350-2800W 8 ohm per channel in small and compact shell space.
. Universal power supply voltage range 90-264V. No worry about unstable power voltage.
. Compact structure of Class D PCB, SMPS Power supply module. 
. Smaller size and  lighter weight. Easy to install and move. 
. 2 ohm stable


Specifications:
Model No. AT-350 AT-500 AT-650 AT-800 AT-900 AT-1100 AT-1800 AT2100 AT2400 AT2800
Stereo Output power  8Ω 350Wx2  500Wx2  650Wx2 800Wx2  900Wx2  1100Wx2 1700Wx2  2100Wx2  2400Wx2  2800Wx2 
Stereo Output power  4Ω 580Wx2 800Wx2 1050Wx2 1300Wx2 1400Wx2 1800Wx2 2800Wx2 3400Wx2 3800Wx2 4500Wx2
Stereo Output power  2Ω 1100Wx2 1100Wx2 1250Wx2 1500Wx2 1750Wx2 2000Wx2 3600Wx2 4000Wx2 5000Wx2 5500Wx2
Bridged output  8Ω 1160W 1600W 2100W 2600W 2800W 3600W 5600W 6800W 7600W 9000W
Bridged output 4Ω 1600W 2200W 2800W 3300W 3500W 4000W 7200W 8000W 10000W 11000W
Voltage Gain 40.8/38.6/32 40.8/38.6/32 41.2/39/32 42.7/40.5/32 40.8/38.6/32 41.2/39/32 42.7/40.5/32 42.7/40.5/32 42.7/40.5/32 42.7/40.5/32
THD (total harmony distortion) ≤0.035% (@ 8Ω，1kHz，1/8 rated power)
IMD（intermodulation distort.） ≤0.15% (@ 8Ω，1kHz，1/8 rated power)
S/N Ratio (20Hz-20Khz,4 Ohms) >106dB A
Cross-talk (1kHZ, 4 Ohms) >40dB
Frequency response 10Hz to 20k Hz,+/-1dB
Input impedance balanced 20K/ non-balanced 10K
Damping factor (10-400Hz,8Ohms) ≥600
Slew Rate ≥20v/uS
Input sensitivity 0.775V,0dB
Protection functions Amplitude limit , and protections againts short circuit ,over-load, overheat, direct current, radio-interference , on/off switching and muting.
Control knobs   power ON/OFF switch，VOLUME control in front panel . STEREO/BRIDGE/MONO   switch in rear panel .
LED indicators CLIP/-10dB/SIGNAL/MONO/BRIDGE/STATUS indicators in front panel
Power delay 4 seconds
Input interface XLR  input socket
Output interface SPEAKON connector
Dimensions (WxHxD) mm 483x44x230 483x44x230 483x44x230 483x44x230 483x44x230 483x44x230 483x44x280 483x44x280 483x44x340 483x44x340
Net weight  5.3kg 5.5kg 5.8kg 6.2kg 6.4kg 6.5kg 7.2kg 8.10kg 8.8KG 9.2kg



Product Features:


DOLSI  AT Series are digital power amplifier with Class D circuit category,  a new milestone in amplfier development.  PFC ( Power Factor Correction) technology  is used in AT series so the amplifiers can work well in wide power supply range ~90-260V. Advanced Class D PCB module and SMPS power supply module  are used to obtain high efficiency and stability.  It has very high power density, which makes the amplifier to reach powerful output in a very small shell space. 
 
 
.  Universal operating voltage 90-264VAC. No worry about unstable power voltage. 
.  Compact structure with only 1U height and 9" depth and light weight, easy to move and install.
.  Fixed switch frequency Class-D  PCB module.
.  Soft resonant switching power supply LLC  module.
.  High efficiency loud speaker EMF absorption system.
.  Unique peak clipping limiter and ripple Elimination.
.  Low electricity consumption.
.  Nice cooling system with quality fans to make wind flow  front to the rear.
.   Accurate volume control, switch on/off, signal, clip and protection LED light  in front panel.
.   Fully automatic protections against  direct current protection, over heat, over load, on/off switching,  RF, and amplitude limit. 
.   XLR balance input and professional SPEAKON output connectors.
.   Stereo ,bridge and mono mode selection pull switch is set on back panel.
.   Good choice for applications that need high power output , for example, live show, outdoor event, stadium, flow performance ... etc. 
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