Genuine yamaha pm4 mixer sound audio system Bluetooth dsp USB 4

4-channel mixer, built-in reverberation effector, independent adjustment of reverberation parameters, built-in Bluetooth, digital display U disk player, with +48V phantom power supply, gain adjustment, treble adjustment, bass adjustment required by condenser microphones. #34;Features: 4 input channels, with +48V phantom power required for condenser microphones and insertion points for external signals: Each channel has gain adjustment, two-band equalizer, Distortion indication 1 pre-fader aux send and 1 post-fader effect send per channel 2-segment stereo level indicator, accurate signal level indication Built-in U disk player with digital display Recording output interface, stereo balanced output interface High-performance monitoring headphone circuit, can be independent. Monitor each input channel, mixed output channel, effect channel Maximum microphone input level: +16dBu Maximum input level: 19dBm (1 KHz,THD=0.5%) SNR: 90dB Headphone output power: 100mW (1KHz, THD=0.5%, 200 Q) Equalization: Low Frequency: 80Hz±15 dB IF: 2.5 KHz±15dB High frequency: 12KHz ± 15 dB Gain Control: Mono: ・26dB, OdB Frequency Response: 20 Hz-20 KHz (+/-0.5dB) Total harmonic distortion + noise: ≤0.05% Power supply: AC12V