JL Audio旗下的DH系列专业功率放大器是CLassD功放的一个新理程碑。采用先进的CLassD功放模块和高效的
SMPS电源模块，这让DH系列具有极高的效率和可靠性，同时也具有极高的功率密度，仅在1U高度9"深度的标准机
箱空间内就能提供前所未有的强大功率。
产品特点
1.结构方面采用标准19寸机架宽度，1U 9寸机箱设计，体积小，重量轻，方便安装;
2.功放方面采用稳定高效的ClassD功放模块，ClassD功放模块的效率高达92%以上，这使得DH系列功率放大器具有极高的效率和可靠性。
同时也具有极高的功率密度;
3.电源方面采用高效稳定的R-SMPS供电系统，集成有源功率因数校正电路(PFC)，PFC使DH系列功率放大器具有更高的可靠性和可控制性
能够根据交流电压波形调整电流波形、适应全球范围的宽电压(90V-264V)运行，同时使得单个标准电流断路器能够承载更大的功率。
4.完善的保护系统，有效减少因使用不当造成的损环，进一步提高机器可靠性;
5.高效稳定的ClassD功放模块，高效稳定的R-SMPS供电系统，高效的扬声器反电动势吸收系统;
6.独特的削峰限幅器和波纹消除网络;
7.极其轻便的整机重量和极小的空间占用率;
8.低音浑厚有力，中高频通透清晰、悦耳;
应用
1.高功率密度和高音质要求扩声应用
2. KTV/大中型酒吧/咖啡厅/休息室安装。
3.便携或者租赁行业PA系统应用。
DH series from JLAudio is a new milestone in the ClassD professional power amplifier.Using advanced ClassD power
module and SMPS power module,makes it with the high efficiency and reliabilitv.and high power density as well.
it can provide an unprecedented strong power only at the 1U height,9"width standard cabinet.
Product Characteristic
1.1U height 9 "width of standard cabinet.compact size,lightweight and portable;
2.The power amplifier adopts a stable and efficient ClassD power amplifier module.The efficiency of theClassD power amplifier module is over 92%, which
makes the DH series power amplifiers have high efficiency and reliability, and also has extremely high power density.;
3. Power supply adopts high-efficiency and stable R-SMPS power supply system:
4.The soft start LLC resonant SMPS module;
5.The active power factor correction(PFC) can be stable working in full voitagerange(90-264V)
6.Perfect protection system to effectively reduce damage caused by improper use and further improve machine reliability;
7.The efficient speaker EMFabsorption system;
8.The unique peak limiter and ripple cancellation network;
9.The fan with temperature control and variable speed,airflow from front to rear;
10.The low frequency powerful,depth is extremely low.mid high frequency with high transparent,clear and sweet;
11.The integration design of the power amplifier module and power supply modulemore than 85% components with
mechanical automation operatio, to ensure the consistency of the product;
Applications
1.The touring/portable audio performance;.
2.The KTV/ bar / Music Hall;
3.The stadium /arena.
型号参数 Specifications
功放基本性能参数 Amplifier Technical Specifications
SMPS电源模块，这让DH系列具有极高的效率和可靠性，同时也具有极高的功率密度，仅在1U高度9"深度的标准机
箱空间内就能提供前所未有的强大功率。
产品特点
1.结构方面采用标准19寸机架宽度，1U 9寸机箱设计，体积小，重量轻，方便安装;
2.功放方面采用稳定高效的ClassD功放模块，ClassD功放模块的效率高达92%以上，这使得DH系列功率放大器具有极高的效率和可靠性。
同时也具有极高的功率密度;
3.电源方面采用高效稳定的R-SMPS供电系统，集成有源功率因数校正电路(PFC)，PFC使DH系列功率放大器具有更高的可靠性和可控制性
能够根据交流电压波形调整电流波形、适应全球范围的宽电压(90V-264V)运行，同时使得单个标准电流断路器能够承载更大的功率。
4.完善的保护系统，有效减少因使用不当造成的损环，进一步提高机器可靠性;
5.高效稳定的ClassD功放模块，高效稳定的R-SMPS供电系统，高效的扬声器反电动势吸收系统;
6.独特的削峰限幅器和波纹消除网络;
7.极其轻便的整机重量和极小的空间占用率;
8.低音浑厚有力，中高频通透清晰、悦耳;
应用
1.高功率密度和高音质要求扩声应用
2. KTV/大中型酒吧/咖啡厅/休息室安装。
3.便携或者租赁行业PA系统应用。
DH series from JLAudio is a new milestone in the ClassD professional power amplifier.Using advanced ClassD power
module and SMPS power module,makes it with the high efficiency and reliabilitv.and high power density as well.
it can provide an unprecedented strong power only at the 1U height,9"width standard cabinet.
Product Characteristic
1.1U height 9 "width of standard cabinet.compact size,lightweight and portable;
2.The power amplifier adopts a stable and efficient ClassD power amplifier module.The efficiency of theClassD power amplifier module is over 92%, which
makes the DH series power amplifiers have high efficiency and reliability, and also has extremely high power density.;
3. Power supply adopts high-efficiency and stable R-SMPS power supply system:
4.The soft start LLC resonant SMPS module;
5.The active power factor correction(PFC) can be stable working in full voitagerange(90-264V)
6.Perfect protection system to effectively reduce damage caused by improper use and further improve machine reliability;
7.The efficient speaker EMFabsorption system;
8.The unique peak limiter and ripple cancellation network;
9.The fan with temperature control and variable speed,airflow from front to rear;
10.The low frequency powerful,depth is extremely low.mid high frequency with high transparent,clear and sweet;
11.The integration design of the power amplifier module and power supply modulemore than 85% components with
mechanical automation operatio, to ensure the consistency of the product;
Applications
1.The touring/portable audio performance;.
2.The KTV/ bar / Music Hall;
3.The stadium /arena.
型号参数 Specifications
| 型号Model: | DH2.8K | DH3.6K | DH6.0K | DH6.8K | DH7.6K | DH9.0K |
| 8Ω输出功率8ΩStereo power: | 2x900W | 2x1100W | 2x1800W | 2x2100W | 2x2400W | 2x2800W |
| 4Ω输出功率4ΩStereo power: | 2x1400W | 2x1800W | 2x3000W | 2x3600W | 2x3800W | 2x4500W |
| 2Ω输出功率2ΩStereo power: | 2x1750W | 2x2000W | 2x3800W | 2x4200W | 2x5000W | 2x5500W |
| 8Ω桥接功率8ΩBrideg power: | 2800W | 3600W | 6000W | 7200W | 7600W | 9000W |
| 4Ω桥接功率4ΩBrideg power: | 3500W | 4000W | 7600W | 8400W | 10000W | N/A |
| 净重Net weight: | 5.5KG | 5.7KG | 6.5KG | 6.8KG | 8KG | 8.3KG |
| 尺寸Product dimension:(W x L x H): | 483x251x44mm | 483x308x44mm | ||||
| 输入阻抗Input impedance | 平衡/不平衡 balanced/unbalanced |
>20KΩ/>10KΩ |
| 总谐波失真THD+N(typical) | 1KHz正弦 8Ω1KHz,1/8 rated power |
<0.035% |
| 频率响应Frequency response | 20Hz-20Kz 8Ω1KHz,1/8 rated power |
<+/-0.5dB |
| 信噪比Signal To Noise Ratio | >106dB | |
| 阻尼系数Damping factor | >600 | |
| 转换速率Conversion rate | >20V/us | |
| 输入灵敏度Input sensitivity | 32dB/1V/0.775V | |
| 最低阻抗Impedance | ⩾2Ω | |
| 风路Wind path | 从前面吹到后面抽风,温控风速 The fan with temperature control and variable speed,airflow from front to rear |
|
| 保护功能Circuitprotection | 软启动/VHF/直流/短路/过载/削锋/失真限制/过热 Soft start,DC,lnfrasonic frequency,High-frequency,Overheat,Short circuit,Mute on/off |
