Functional:

1. Digital karaoke time-lapse reverberatio
2. Karaoke tonal function

3. High fidelity preamplifier

4. Particular microphone audio frequency function

5. Microphone`s signal channel and the music signal are  adjusted independently

Specifications:

General harmonic distortion...................less than 0.05% 1KHz
Frequency response (music signal)........20Hz~25KHz+3dB（A standard ）
Delay time..............................................150ms\175ms\200ms (3 bands can select)
Output impedance..................................1KW
Input impedance.....................................20KW (Unbalanced)
Dynamic range........................................105dB
SNR..........................................................more than 80dB(A Count right)           
Separation...............................................100dB
Bourdon's frequence................................100Hz+10dB
Alt's frequence..........................................10KHz+10dB
Consumed power......................................10W