Company Advantages1. KaiXu pro power amplifier is manufactured adhering to the principle of innovative production.
2. The quality control of this product is conducted by a professional team.
3. The popularity this product contributes to two factors which include high cost performance and wide market application.
4. [企业简称] has established a scientific and standardized production process, and has improved the quality control system. The production details are carefully controlled in an all-round way to ensure that subwoofer power amplifier is a high-quality product that meets international standards.




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 Parameter
MODEL | ES-450 | ES-650 | ES-850 | ES-1050 | ES-1350 | ES-1500 | ES-1800 |
Stereo power8Ω | 465W*2 | 650W*2 | 850W*2 | 1050w*2 | 1300W*2 | 1500W*2 | 1800W*2 |
Stereo power4Ω | 700w*2 | 1000W*2 | 1250W*2 | 1650W*2 | 2050W*2 | 2400w*2 | 2800W*2 |
Stereo power2Ω | 910W*2 | 1300W*2 | 1625W*2 | 2145W*2 | 2665W*2 | 3120W*2 | 36040W*2 |
Bridge Mono Power 8Ω | 1400W*2 | 2000W*2 | 2500W*2 | 3300W*2 | 4000W*2 | 4800W*2 | 5600W*2 |
Bridge Mono Power 4Ω | 1820W*2 | 2600W*2 | 3250W*2 | 4290W*2 | 5200W*2 | 6240W*2 | 7280W*2 |
Sigal To Noise | ≥120dB | ≥115dB | ≥112dB | ≥110dB | ≥110dB | ≥110dB | ≥110dB |
Damping Factor | ≥800 | ≥550 | ≥500 | ≥500 | ≥550 | ≥800 | ≥800 |
Frequency response | 20HZ-20KHZ,±0.5dB |
Input Sensitivity | 1V/0dB,Balance |
Input Impedance | 10KΩ/20KΩ(Unbalance/Balance) |
Cross talk | ≥75dB | ≥78dB | ≥80dB | ≥85dB | ≥88dB | ≥88dB | ≥90dB |
Net /Gross Weight(kg) | 19/21 | 21/23 | 23/25 | 33/35 | 34/36 | 34/37 | 37/39 |
Install size(mm) | 483W*445D*89H | 483W*488D*133H |
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 is broadly regarded as a reliable manufacturer of subwoofer power amplifier .
2. Guangzhou KAIXU Audio Equipment Co., Ltd has introduced large home amplifier production machines.
3. Guangzhou KAIXU Audio Equipment Co., Ltd aims to serve every customer well. Contact us! From improving management thought and strategy, KaiXu will always upgrade the job efficiency. Contact us!