Depusheng REV3900 Professional KTV Pre-effector Household Reverberator Karaoke Anti-howling Audio Processor USB Bluetooth Device

Using DSP chip, the vocal effect is richer, more natural and more transparent. It is a stereo double reverberation and multi-purpose karaoke effector with high fidelity, fluency, nature and sweetness. Output includes front (rear) left and right channels, center channel and low frequency channel. And it is as simple and convenient to use as karaoke amplifier. The use of aluminum alloy panel, 1U ultra-thin design, cold light shuttle control, and card package adjustment make debugging more convenient, easy and concise. The microphone is equipped with six-stage parameter equalization adjustment, which has a wider adjustment range and a more delicate and soft sound without damaging the original timbre, improving the single-band sound quality effect and effectively handling the howling frequency points. Low channel output design band frequency division point and adjustable output gain; The low channel is equipped with a perfect low-frequency self-excitation prevention circuit. When entering MIC, the low-frequency signal output port is automatically attenuated by half to prevent the equipment from being damaged by low-frequency howling; And has the function that the microphone does not enter the ultra-low channel. The center channel output design can choose music/reverberation ratio or pure vocal dry tone; And can independently control the volume and adjust the high, medium and low frequencies. Signal to noise ratio / left and right channels (1KHZ, 0dB) 90dB center channel 87dB low channel 87dB separation 75dB frequency response / music 10-30KHZ Microphone 20-15KHZ sound quality adjustment range/music bass +/-10dB(100HZ) treble +/-10dB(10KHZ) Microphone bass +/-10dB(100HZ) Treble +/-5dB(10KHZ) Microphone squelch threshold voltage 3MV, start-up time 3S, distortion (1KHZ, 30MV) 0.03%