
Features:
1.  High efficiency
     Amplifier efficiency reach up to 80% -90%, the power consumption can be reduced more than 60% compared with the analog amplifier .
2.  Stable and reliable
     Optimized design with high performance and low heating can easily meet the demanding fixed installation requirements of ultra-long emergency broadcast. And we have done lots of stability testing to ensure long life operation.
3.  Perfect protection circuit
    DA modular digital power amplifier provides a full range of protection circuits to cope with over-current, short circuit, abnormal DC voltage output and heat sink temperature rise caused by overload.
4.  Lightweight and space saving design
     The lightweight make the installation easy, compact 1U height can be significant saving in rack  space.  It also save the transportation and warehousing costs.
5.  Independent power supply for each amplifier module
    Each channel amplifier module has their own power supply module. Other channel can not be affected  when some channel has faults. You can use one or more channel as a backup amplifier.  Also it can reduce the maintenance cost because of the modular circuit design.
6.  Perfect sound quality
     ∑ vector amplification make the sound quality perfect and can protect the speaker for longer life.
7.  Convenient front panel volume control and status indicator: power, output signal, clip and protect.
Application:
Superior DA series constant voltage digital power amplifier can be widely used in various public address needs, The modular design of the whole series enables this series to create more flexible application requirements:
You can use a stand-alone channel, two-channel, four-channel amplifier; You can also use the two channels as one master and one standby; Even you can use the four channels as three masters and one backup, and two masters and two standbys.These features make the DA series amplifier suitable for the needs of a variety of large-scale projects, such as exhibition halls, stadiums, stations, airports, theme parks, buildings, factories, schools, hotels and so on.
DA Series Model
DA-1300H: 300W single-channel (1U) DA-2300H: 300W dual channel (1U) DA-4300H: 300W four-channel (1U)
DA-1600H: 600W single-channel (1U) DA-2600H: 600W dual channel (1U) DA-4600H: 600W four-channel (1U)
DA-1900H: 900W single-channel (2U) DA-2900H: 900W dual channel (2U)
DA-11200H: 1200W single-channel (2U) DA-21200H: 1200W dual channel (2U)
Specification
| Model | DA-1300H | DA-1600H | 
| Rate Power | 300W   x 1 | 600W   x 1 | 
| Vout and impedance | 100V(1kHz,33Ω) | 100V(1kHz,16Ω) | 
| Audio input | Input   impedance:     10kΩ,(Unbalance), 20K,(Balance); Input sensitivity: +4dB(1.23V) Input   level adjust:     Infinitesimal ~ 0dB; Input interface: Phoenix-type Terminal CH1   Audio input mode     switch: ON:CH1 switch to all Channel, OFF: Each inputs   independent | 
| Speaker output | Connect   with High   impedance   speaker: 100V constant output, M4 Helix terminal,insulating bush       interval 8.8mm. | 
| Growth mode | ∑   Vector growth mode | 
| Protection circuit | Power   amplifier: DU output, Over heat protect,load     short-circuit, Over current, Output protect | 
| Power   source: Over   heat   protect, AC overcurrent protect | 
| Cooling | Forced   air cooling,     Uninterruptible cooling fan by the front-to-rear direction,   60000     hours of life under 25℃ | 
| Frequency response | 20Hz   ~ 20kHz(±0.5dB) | 
| S/N | >90dB | 
| THD | <0.1%   (20Hz~20kHz) | 
| Power source | 220~240VAC,   50/60Hz | 
| Power Consumption (Account by   each   modular) | Full-load   power     output(330W), Power consumption 750W | Full-load   power     output(670W), Power consumption 750W | 
| 1/3   power output   (1kHz),   Power consumption 250W | 1/3   power output   (1kHz),   Power consumption 238W | 
| 1/8   power output   (1kHz),   Power consumption 60W | 1/8   power output   (1kHz),   Power consumption 250W | 
| Standby   power loss:   35W | Standby   power loss:   40W | 
| Gross weight | 6kg | 6kg | 
| Net weight | 4.8kg | 4.8kg | 
| Operating Temp | -10℃   ~ +40℃,<90%(no condensate) | 
| Dimensions | 482(W)   x  44(H) x     354(D) mm | 
| Packing Dimensions | 550(W)   × 255(H) ×   460(D) mm       0.075CBM | 
                                
                                                                
                                    Features:
1.  High efficiency
     Amplifier efficiency reach up to 80% -90%, the power consumption can be reduced more than 60% compared with the analog amplifier .
2.  Stable and reliable
     Optimized design with high performance and low heating can easily meet the most demanding fixed installation requirements of ultra-long emergency broadcast. And we have done lots of stability testing to ensure long life operation.
3.  Perfect protection circuit
    DA modular digital power amplifier provides a full range of protection circuits to cope with over-current, short circuit, abnormal DC voltage output and heat sink temperature rise caused by overload.
4.  Lightweight and space saving design
     The lightweight make the installation easy, compact 1U height can be significant saving in rack  space.  It also save the transportation and warehousing costs.
5.  Independent power supply for each amplifier module
    Each channel amplifier module has their own power supply module. Other channel can not be affected  when some channel has faults. You can use one or more channel as a backup amplifier.  Also it can reduce the maintenance cost because of the modular circuit design.
6.  Perfect sound quality
     ∑ vector amplification make the sound quality perfect and can protect the speaker for longer life.
7.  Convenient front panel volume control and status indicator: power, output signal, clip and protect.
Application:
Excellent DA series constant voltage digital power amplifier can be widely used in various public address needs, The modular design of the whole series enables this series to create more flexible application requirements:
You can use a stand-alone channel, two-channel, four-channel amplifier; You can also use the two channels as one master and one standby; Even you can use the four channels as three masters and one backup, and two masters and two standbys.These features make the DA series amplifier suitable for the needs of a variety of large-scale projects, such as exhibition halls, stadiums, stations, airports, theme parks, buildings, factories, schools, hotels and so on.
DA Series Model
DA-1300H: 300W single-channel (1U) DA-2300H: 300W dual channel (1U) DA-4300H: 300W four-channel (1U)
DA-1600H: 600W single-channel (1U) DA-2600H: 600W dual channel (1U) DA-4600H: 600W four-channel (1U)
DA-1900H: 900W single-channel (2U) DA-2900H: 900W dual channel (2U)
DA-11200H: 1200W single-channel (2U) DA-21200H: 1200W dual channel (2U)
Specification
Model:DA-1300H
Rate Power:300W   x 1
Vout and impedance:100V(1kHz,33Ω):
Audio input:Input   impedance:   10kΩ,(Unbalance), 20K,(Balance); Input sensitivity: +4dB(1.23V);Input   level adjust:   Infinitesimal ~ 0dB; Input interface: Phoenix-type Terminal;CH1   Audio input mode   switch: ON:CH1 switch to all Channel, OFF: Each inputs   independent
Speaker output:Connect   with High   impedance speaker: 100V constant output, M4 Helix terminal,insulating bush     interval 8.8mm.
Growth mode:∑   Vector growth mode
Protection circuit:Power   amplifier: DU output, Over heat protect,load   short-circuit, Over current, Output protect
:Power   source: Over   heat protect, AC overcurrent protect
Cooling:Forced   air cooling,   Uninterruptible cooling fan by the front-to-rear direction,   60000   hours of life under 25℃
Frequency response:20Hz   ~ 20kHz(±0.5dB)
S/N:>90dB
THD:<0.1%   (20Hz~20kHz)
Power source:220~240VAC,   50/60Hz
Power Consumption (Account by   each modular):Full-load   power   output(330W), Power consumption 750W;1/3   power output   (1kHz), Power consumption 250W;1/8   power output   (1kHz), Power consumption 60W;Standby   power loss:   35W:
Gross weight:6kg
Net weight:4.8kg
Operating Temp:-10℃   ~ +40℃,<90%(no condensate)
Dimensions:482(W)   x  44(H) x   354(D) mm
Packing Dimensions:550(W)   × 255(H) ×   460(D) mm     0.075CBM
Model:DA-1600H
Rate Power:600W   x 1
Vout and impedance:100V(1kHz,16Ω)
Audio input:Input   impedance:   10kΩ,(Unbalance), 20K,(Balance); Input sensitivity: +4dB(1.23V)
Input   level adjust:   Infinitesimal ~ 0dB; Input interface: Phoenix-type Terminal
CH1   Audio input mode   switch: ON:CH1 switch to all Channel, OFF: Each inputs   independent
Speaker output:Connect   with High   impedance speaker: 100V constant output, M4 Helix terminal,insulating bush     interval 8.8mm.
Growth mode:∑   Vector growth mode
Protection circuit:Power   amplifier: DU output, Over heat protect,load   short-circuit, Over current, Output protect
:Power   source: Over   heat protect, AC overcurrent protect
Cooling:Forced   air cooling,   Uninterruptible cooling fan by the front-to-rear direction,   60000   hours of life under 25℃
Frequency response:20Hz   ~ 20kHz(±0.5dB)
S/N:>90dB
THD:<0.1%   (20Hz~20kHz)
Power source:220~240VAC,   50/60Hz
Power Consumption (Account by   each modular):Full-load   power   output(670W), Power consumption 750W; 1/3   power output   (1kHz), Power consumption 238W; 1/8   power output   (1kHz), Power consumption 250W;Standby   power loss:   40W
Gross weight:6kg
Net weight:4.8kg
Operating Temp:-10℃   ~ +40℃,<90%(no condensate)
Dimensions:482(W)   x  44(H) x   354(D) mm
Packing Dimensions:550(W)   × 255(H) ×   460(D) mm     0.075CBM