Company Advantages1. KSA best home audio amplifier involves a wide range of in-depth tests including analyzing both the chemical and physical properties of the electrode materials used.
2. This product has the expected air permeability, comfortable to sleep on. The proper weight, thickness and porosity of the fabric contribute to this property.
3. While Guangzhou KAIXU Audio Equipment Co., Ltd produces its own products, we can also sample or customize products according to the different requirements of our customers.
4. Our transistor amplifier are of exquisite quality which are greatly recognized by 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 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 currently expanding the business quickly in China and foreign countries.
2. Our proficient workers are rigorously trained before beginning proper manufacturing work.
3. best home audio amplifier is eternal tenet of an Guangzhou KAIXU Audio Equipment Co., Ltd. Welcome to visit our factory! Guangzhou KAIXU Audio Equipment Co., Ltd has newly established the service concept of best home stereo amplifier . Welcome to visit our factory!