1. The host is equipped with a built-in 24 bit A/D and D/A converter; 32-bit DSP processor, 96KHz high-speed sampling, using high-speed floating point 5A algorithm (AFC), background noise reduction (ANC), automatic gain (AGC), echo cancellation (AEC), intelligent tuning (AI)
2. Equipped with 8 Phoenix terminal microphone inputs and 1 composite card dragon base microphone input without feedback processing (with 1 reserved U-segment microphone option), the 8th microphone has priority function
3. 4-channel audio (1-channel Bluetooth signal) input, 4-channel audio output. The microphone will automatically turn off when the music is turned on.
4. 2.0-inch color display screen, displaying functional parameters There is a locking function Switching between Chinese and English in the menu
5. The host is powered by a wide voltage switch power supply, with a wide voltage range of AC90V-240V
6. Music input: Bluetooth and USB flash drive, 3.5 interface, independent volume control, line output Lotus RCA interface, recording RCA interface output independent volume control (without feedback). The 3.5 interface input has digital isolation function and will not produce AC sound.
7. The host can have built-in digital wireless infrared receiver function, which can be used independently. Multi functional wireless microphone with laser pen, wireless PPT page turning, and wireless microphone functions; Wireless microphones use infrared transmission technology. (This optional feature)
8. It has the function of spatial reverberation reduction algorithm, which can amplify sound clearly in a space with reverberation, without metal tail sound, echo and reverberation time ≤ 1 second, without losing or jamming words, and does not amplify reverberation in a reverberation environment. It also has the function of suppressing and eliminating reverberation. It has the function of effectively filtering the noise and noise interference emitted by indoor air conditioning, electric fans, etc., and filtering noise does not affect the sound
9. Ready to use without debugging, easy to operate Built in digital microprocessor chip CPU, new industry algorithm AI intelligent automatic learning eliminates sound feedback, sound remains unchanged, high fidelity
10. It can be connected to the upper computer software through a USB interface and is adjustable, with high pass, 10 segment digital equalization, environmental noise reduction level, and intelligent level tuning The high and low frequencies of the music can be adjusted on the panel The RS232 interface can be externally connected to the central control to control microphone volume, music volume, mute and other functions
11. Automatic gain function: Increases gain by 6-15dB. Signal to noise ratio: ≥ 95dB.
12. Equipped with a network broadcast signal input interface, directly connected to broadcast signals Multiple machines can be integrated into one
13. Frequency response: 30Hz-18kHz (± 1.5dB), total harmonic distortion: ≤ 0.2% (1kHz).
14. Feedback Suppression (AFC): Increase in Sound Transmission Gain by ≥ 15dB.
15. Adaptive background noise reduction (ANS): signal-to-noise ratio improvement ≥ 20dB.
16. Automatic Gain Control (AGC): Gain control amplitude: -12dB -+12dB.
17. Echo cancellation intensity (AEC): ≥ -60dB, echo cancellation tail length: ≥ 256ms.
