---

---

1: Overload Protection: When the power amplifier is overloaded, it automatically reduces the output power to protect the loudspeaker and prevent the on-site audience from being startled.

---

2: Howl Protection: When the loudspeaker howls, it automatically reduces the output power to protect the loudspeaker and prevent the on-site audience from being startled.

 

---

3: Low-Impedance Protection: When the power amplifier encounters an ultra-low impedance load, it automatically adjusts the output power to maintain good on-site sound quality.

---

---

4: Short-Circuit Protection: When the output terminal is short-circuited, it automatically shuts off the input signal with no power output to prevent line fires.

---

---

5: Overheating Protection: When the power amplifier overheats, it automatically reduces the output power without shutting down, ensuring uninterrupted on-site music.

---

---

6: Intelligent Air Cooling: The fan features stepless speed regulation, automatically adjusting according to the internal temperature. This keeps the on-site environment quiet and comfortable, reduces dust intake, and extends the service life of the power amplifier.

---

---

7: Intelligent Muting: When there is no signal input, it automatically cuts off the noise from the pre-stage circuit, improves the system signal-to-noise ratio, and maintains on-site silence without current noise.

---

---

8: Volume Recovery: After the power amplifier protection is released, it automatically restores to the original volume to ensure sufficient on-site sound pressure level.

---

---

9: Shutdown & Restart: Automatically restarts after shutting down due to excessive power supply overload, ensuring the normal operation of the on-site system.

---

---

10: Power-On Volume Control: When the power amplifier is turned on, the volume automatically increases gradually from low to high without impact, protecting the loudspeaker and preventing the on-site audience from being startled.

---

11: Power-On Protection: After a low-current soft-start, it automatically detects the entire circuit without impact, protecting the loudspeaker and preventing the on-site audience from being startled.

---

---

12: Shutdown Protection: When shutting down, it automatically cuts off the output load circuit first without impact, protecting the loudspeaker and preventing the on-site audience from being startled.

---

---

13: Square Wave Protection: When the pre-stage inputs a sine wave signal but the post-stage outputs a square wave, it automatically reduces the input signal to eliminate square wave output, protecting the loudspeaker.

---

---

14: DC Protection: The pre-stage input is isolated from DC, and midpoint drift is automatically detected to ensure DC output is less than 3V, protecting the loudspeaker from damage.

---

---

15: Overvoltage Protection: Automatically shuts down when the input power supply is below 160V or above 260V, and automatically turns on to resume operation when the power supply voltage returns to normal.

---

---

 

 

---

---

Product Description

---

---

 

---

1: AGC (Automatic Gain Control): Automatic gain adjustment technology. When the input signal is too strong, it can automatically adjust the output power to match the signal, preventing overload. This function can protect the sound reinforcement system from damage caused by misoperation or malicious operation.

---

2: Square Wave Suppression: When excessive power output or excessively low load impedance causes square waves, it automatically adjusts the input signal to eliminate square wave power output, thus protecting the loudspeaker.

---

3: Low-Impedance Protection: It automatically detects the dynamic impedance of the load and adjusts the output power in real time to match the load, enabling safe operation for a long time.

---

4: Circuit Noise Muting: When no music signal is input, it automatically cuts off the noise from the pre-stage input, ensuring the loudspeaker remains quiet without static or interference.

---

5: Intelligent Fan Noise Control: Based on the machine's operating temperature, it automatically adjusts the cooling fan to the optimal running speed. This reduces ambient noise, minimizes dust intake, lowers failure rates, and extends the service life of the

power amplifier.

---

6: Superior Sound Quality: The entire circuit is exquisitely designed in accordance with Hi-Fi technical standards, adopting the innovative technology of dynamic Class A amplification. It delivers powerful and rich bass, pure and loud midrange, and clear and delicate treble, with a strong sense of artistic expression.

---

7: Elegant Appearance: Adhering to the aesthetic concepts of Eastern civilization, it features central symmetry, neat balance, meticulous craftsmanship, and a magnificent and graceful style. The combination of gray and black creates a smart and profound look, enhancing its sense of modern technology.

---

 

---

---

Product Description

---

---

 

1：1U ultra-thin design with a novel and lightweight appearance, featuring a high-definition LCD screen for real-time temperature display, suitable for mobile performances and bars.

---

2：High stability, high-fidelity sound quality, sufficient power, strong and rich bass, mellow and sweet midrange, clear and delicate treble.

---

3：High efficiency, energy-saving and environmentally friendly, reducing operating costs.

---

4：Adopting active PFC and soft-switching technology, the power correction factor can reach up to 0.99 with strong adaptability.

---

5：Operating with a wide voltage range of 90V-270V, it can adapt to harsh power grid environments and provide continuous and surging power for the power amplifier.

---

6：Stable and reliable 2Ω driving capability, perfectly suitable for line array speaker systems.

---

7：D-PWM audio modulation technology, which recycles unused electrical energy of the speaker, achieving ultra-high energy efficiency.

---

8：Standby sleep mode for energy saving and long durability.

---

9：Equipped with ROSH, CE certifications, national quality inspection reports, energy-saving and environmental protection certifications, and can pass various 3C tests.

---

10：Using high-end international manufacturer components, first-class quality, advanced and reliable circuits, and complete various protection circuits.

---

11：Passed strict reliability, environmental adaptability, and user experience tests, with extremely strict production processes.

---

 

 

---

---

Product Description

---

---

 

BTF2.6, BTF2.8, BTF3.0, BTF3.2, BTF3.6, and BTF4.0 belong to the entertainment-specific series. They are specially developed for scenarios requiring high-standard vocal performance and dynamic output. These products adopt an SMT module design, select high-quality components, and feature a unique driver circuit design, which enables excellent sound analysis and expressiveness, especially the accurate rendering of bass under large dynamics. The advanced protection circuits ensure the stability of the products while protecting the speakers. The unique heat dissipation design enhances heat conversion efficiency, ensuring that the products will not shut down or activate protection even in harsh operating environments. These products are suitable for KTVs, nightclubs, PARTY-Ks, and other venues.