Company Advantages1. KaiXu best pa amplifier is processed deeply with professional techniques, including drill hole, stretch bending, milling, welding, fabrication, as well as other chemical processes.
2. This product is effective against pilling. The fabric structure is completely tightened and the friction resistance is increased.
3. The product can end a task in the shortest amount of time. It has exceptionally high productivity and can perform certain tasks at a faster rate than anyone without any fatigue.
4. This product matches with the latest development of the industry and meets the demands of customers.




Product Details
NO.1
High Quality Capacitance
The power amplifier uses a large capacity to ensure sufficient energy during high power operation,high quality and long life.
NO.2
TOSHIBA Powerful Amplifier Tubes
High Performance and high power amplifer tube makes the voice vibrant and dynamic.
NO.3
Pure Aluminum Heat Sink
Large aluminum heat sink can effectively transfer the heat generated by the power amplifier in time,and the heat dissipation is fast and the effect is good.
NO.4
Excellent Cooling Fan
Ensure that the heat is dissipated and that the amplifier is cooled to prevent if from overheating.
Product Feature

PA1.3 Series is a high power, clear sound and low bass booster for subs.A new class AB desigin,through a bridge mode.lift GND even it was bridge.
Stable performance /precise workmanship. specialized system protection circuit, comprehensive safe,reliable & accurate such as short circuit protect,over load protect,DC protect(inrush audio peak) limiter soft start,High temp protect,HF protect, Back-EMF protect etc.
Product Parameter
Model | PA1.3 |
damping factor | ≥620 |
frequency response | 20HZ-20KHZ,±0.1dB |
THD+N | ≤0.01%,1/3Rate Power@8Ω1KHZ |
IMD | ≤0.01%,1/3Rate Power@8Ω |
Input sensitivity | 0.775V\1.0V\1.55V |
Input Impedance | 10KΩ/20KΩ(Unbalance/Balance) |
input CMRR | ≤75dB |
Cross talk | ≤70dB |
LED Indicator | SIGNAL,PROTECT,ACTIVE,CLIP/LIMITING |
Main power supply | 230V@50HZ,FUSE:T25A |
power consumption | 4400W |
q’ty20”,40”,40”HC(pcs) | 400/800/970 |
Certificate
Packing & Shipping
We support both OEM & ODM packaging. Our normally delivery method are by the sea, by air, by international express (DHL, UPS, TNT, FedEx)

Company Features1. Guangzhou KAIXU Audio Equipment Co., Ltd has years of factory experience in manufacturing high quality amplifier for sale .
2. Our team of engineers is equipped with decades of experience. They are passionate about manufacturing businesses. Dependent upon particular needs, they can help our customers to identify the most effective project solutions.
3. The thought best pa amplifier is the tenet of Guangzhou KAIXU Audio Equipment Co., Ltd. Inquire now! The service concept of basic audio amplifier in Guangzhou KAIXU Audio Equipment Co., Ltd emphasize on pa system power amp . Inquire now! pro audio amplifier is Guangzhou KAIXU Audio Equipment Co., Ltd original service philosophy, which fully shows its own superiority. Inquire now!