From cost-effective 300W dual channel amplifiers to high-performance2000W four-channel amplifiers, we offer it all. With PFC(Power FactorCorrection)and intelligent track management, we meet all your powe!
amplifier needs.

Products Description
Today, we are going to introduce the PFA20K, a high-performance four-channel professional power amplifier. 8-ohm 4*2000W, 4-ohm 4*3600W, perfectly matching the driving requirements of 15-inch full-range speakers and 18-inch subwoofers.
1.It is equipped with built-in PFC (Power Factor Correction) function and supports an ultra-wide voltage input range (85V-460V), enabling it to operate stably almost anywhere in the world with power supply.
2. It features the only three-phase power supply patent technology in Asia, which further enhances power supply efficiency and system stability, making it particularly suitable for large-scale performances and fixed installation projects.
3. Quickly connect the power safety plug and it has a utility model patent
4. Intelligence and efficiency are the core advantages of PFA20K, which adopts SRM intelligent audio track management technology.
Compared to a leading brand, their product consumes over 200 watts in standby mode, while ours uses only around 60 watts. This makes our product a greener audio solution—more energy-efficient and power-saving!
5. With the dedicated DSP software, users can easily debug the system and set parameters on their computers.
PFA20K - The ideal choice for professional audio applications that pursue outstanding performance, reliability and energy efficiency.
Model Parameters
| Model | PFA20K |
| Outputs Stages | |
| output power 8Ω | 2000Wx4 |
| output powe 4Ω | 3600wx4 |
| output powe 2.7Ω | 4500Wx4 |
| output powe 2Ω | 5600Wx4 |
| output powe 8ΩBLT | 6600Wx2 |
| output powe 4ΩBLT | 10800Wx2 |
| Peak total output,all channels driven | 20000W |
| DSP | |
| Damping 80Ω 20Hz-500Hz | >5000 |
| Conversion rate | >103V/μs |
| frequency response | 10Hz-20 kHz |
| Noise | <1mv |
| THD | <0.5%(typical<0.01%) |
| Input impedance | 20kQ balanced |
| AD/DA Converters | 24Bit/96kHz |
| Sampling Rate Converter | 24Bit/44.1kHz to 192kHz |
| delay | +70ms |
| Equalizer | Self FIR(finite impulse response),peak,high/low shelf type,all pass, band-pass,band stophigh/low-pass equalization,Linear phase(FIR), data(FIR),Butterworth、Linkwitz-Riley. |
| crossover | Besset:6dB/octt48 |
| limiter | TruePower、Voltage RMS,current RMS,peak limit |
| AC power supply | |
| Rated voltage | 100-240V,50/80Hz |
| Operating range | 90-260Vfrom DC to 200HZ |
| power factor 1/8Max output power 4Ω | >0.9 |
| Rated voltage | 173Y/100-416Y/240V 3-,3W+N+PE/3W+PE |
| power factor 1/8Max output power 4Ω | >0.9 |
| Size | W:483 mm,H:44 mm,D:490 mm |
Frequently Asked Questions
1. Who are we?
We are based in Guangdong, China, start from 2014, sell to Domestic Market(50.00%), South America(14.00%), South Asia(10.00%), North America(8.00%), Eastern Europe(3.00%), Southern Europe(3.00%), Northern Europe(3.00%), Western Europe(3.00%), Southeast Asia(1.00%), Eastern Asia(1.00%), Mid East(1.00%), Oceania(1.00%), Central America(1.00%), Africa(1.00%). There are total about 11-50 people in our office.
2. How can we guarantee quality?
Always a pre-production sample before mass production; Always final Inspection before shipment;
3. What can you buy from us?
Professional Digital Amplifier, Digital Amplifier Module, Digital Active Speaker Amplifier, DSP, Professional Audio Speaker
4. Why should you buy from us not from other suppliers?
Dedicated to developing, designing, and selling various professional audio products for the professional audio market, such as professional amplifiers, Professional Sound Column Speakers, active speaker amplifiers, amplifier modules, and self-developed DSP
5. What services can we provide?
Accepted Delivery Terms: FOB, CFR, CIF ,EXW; Accepted Payment Currency: USD, EUR, HKD; Accepted Payment Type: T/T, L/C; Language Spoken: English, Chinese
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Contact Us
+86 138 0987 4978
+86 138 0960 5077
+86 133 8005 1648
2nd Floor, Building 6, No. 341, Jinou Road, Jianghai District, Jiangmen City, Guangdong Province