JL Audio旗下的DH係列專業功率放大器是CLassD功放的一個新理程碑。采用先進的CLassD功放模塊和高效的
SMPS電源模塊，這讓DH係列具有極高的效率和可靠性，同時也具有極高的功率密度，僅在1U高度9"深度的標準機
箱空間內就能提供前所未有的強大功率。
產品特點
1.結構方麵采用標準19寸機架寬度，1U 9寸機箱設計，體積小，重量輕，方便安裝;
2.功放方麵采用穩定高效的ClassD功放模塊，ClassD功放模塊的效率高達92%以上，這使得DH係列功率放大器具有極高的效率和可靠性。
同時也具有極高的功率密度;
3.電源方麵采用高效穩定的R-SMPS供電係統，集成有源功率因數校正電路(PFC)，PFC使DH係列功率放大器具有更高的可靠性和可控製性
能夠根據交流電壓波形調整電流波形、適應全球範圍的寬電壓(90V-264V)運行，同時使得單個標準電流斷路器能夠承載更大的功率。
4.完善的保護係統，有效減少因使用不當造成的損環，進一步提高機器可靠性;
5.高效穩定的ClassD功放模塊，高效穩定的R-SMPS供電係統，高效的揚聲器反電動勢吸收係統;
6.獨特的削峰限幅器和波紋消除網絡;
7.極其輕便的整機重量和極小的空間占用率;
8.低音渾厚有力，中高頻通透清晰、悅耳;
應用
1.高功率密度和高音質要求擴聲應用
2. KTV/大中型酒吧/咖啡廳/休息室安裝。
3.便攜或者租賃行業PA係統應用。
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.
型號參數 Specifications
功放基本性能參數 Amplifier Technical Specifications
SMPS電源模塊，這讓DH係列具有極高的效率和可靠性，同時也具有極高的功率密度，僅在1U高度9"深度的標準機
箱空間內就能提供前所未有的強大功率。
產品特點
1.結構方麵采用標準19寸機架寬度，1U 9寸機箱設計，體積小，重量輕，方便安裝;
2.功放方麵采用穩定高效的ClassD功放模塊，ClassD功放模塊的效率高達92%以上，這使得DH係列功率放大器具有極高的效率和可靠性。
同時也具有極高的功率密度;
3.電源方麵采用高效穩定的R-SMPS供電係統，集成有源功率因數校正電路(PFC)，PFC使DH係列功率放大器具有更高的可靠性和可控製性
能夠根據交流電壓波形調整電流波形、適應全球範圍的寬電壓(90V-264V)運行，同時使得單個標準電流斷路器能夠承載更大的功率。
4.完善的保護係統，有效減少因使用不當造成的損環，進一步提高機器可靠性;
5.高效穩定的ClassD功放模塊，高效穩定的R-SMPS供電係統，高效的揚聲器反電動勢吸收係統;
6.獨特的削峰限幅器和波紋消除網絡;
7.極其輕便的整機重量和極小的空間占用率;
8.低音渾厚有力，中高頻通透清晰、悅耳;
應用
1.高功率密度和高音質要求擴聲應用
2. KTV/大中型酒吧/咖啡廳/休息室安裝。
3.便攜或者租賃行業PA係統應用。
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.
型號參數 Specifications
| 型號Model: | DH2.8K | DH3.6K | DH6.0K | DH6.8K | DH7.6K | DH9.0K |
| 8Ω輸出功率8ΩStereo power: | 2x900W | 2x1100W | 2x1800W | 2x2100W | 2x2400W | 2x2800W |
| 4Ω輸出功率4ΩStereo power: | 2x1400W | 2x1800W | 2x3000W | 2x3600W | 2x3800W | 2x4500W |
| 2Ω輸出功率2ΩStereo power: | 2x1750W | 2x2000W | 2x3800W | 2x4200W | 2x5000W | 2x5500W |
| 8Ω橋接功率8ΩBrideg power: | 2800W | 3600W | 6000W | 7200W | 7600W | 9000W |
| 4Ω橋接功率4ΩBrideg power: | 3500W | 4000W | 7600W | 8400W | 10000W | N/A |
| 淨重Net weight: | 5.5KG | 5.7KG | 6.5KG | 6.8KG | 8KG | 8.3KG |
| 尺寸Product dimension:(W x L x H): | 483x251x44mm | 483x308x44mm | ||||
| 輸入阻抗Input impedance | 平衡/不平衡 balanced/unbalanced |
>20KΩ/>10KΩ |
| 總諧波失真THD+N(typical) | 1KHz正弦 8Ω1KHz,1/8 rated power |
<0.035% |
| 頻率響應Frequency response | 20Hz-20Kz 8Ω1KHz,1/8 rated power |
<+/-0.5dB |
| 信噪比Signal To Noise Ratio | >106dB | |
| 阻尼係數Damping factor | >600 | |
| 轉換速率Conversion rate | >20V/us | |
| 輸入靈敏度Input sensitivity | 32dB/1V/0.775V | |
| 最低阻抗Impedance | ⩾2Ω | |
| 風路Wind path | 從前麵吹到後麵抽風,溫控風速 The fan with temperature control and variable speed,airflow from front to rear |
|
| 保護功能Circuitprotection | 軟啟動/VHF/直流/短路/過載/削鋒/失真限製/過熱 Soft start,DC,lnfrasonic frequency,High-frequency,Overheat,Short circuit,Mute on/off |
