EQ-A31 Digital Equalizer Stage Home Karaoke Noise Reduction Audio Processor 1. Enhance music quality by modifying audio through the equalizer; 31-band fine-tuning effortlessly achieves ideal sound performance 2. Independent adjustment for treble, midrange, and bass 3. Standard 1U rackmount design with brushed metal front panel 4. Dual-channel synchronized control of dual 31-band EQ, integrating DSP digital and analog processing 5. LED spectrum indicators per EQ band provide clear visual feedback on frequency levels during operation 6. Real-time dual 31-band frequency point jumping with 99% spectral accuracy 7. Advanced noise gate function eliminates system noise, fixed within preset calibration range 8. Multi-type inputoutput interfaces: TRS 6.35mmRCA phonoXLR balanced connectors 9. EQ bypass: bypasses the graphic equalizer in the signal path 10. Save and recall function: Stores and recalls 10 preset modes 11. Microphone gain: -1dB or +11dB 12. Line input impedance: 15K ohms 13. Frequency response: 20Hz–20kHz 14. Signal-to-noise ratio: 82dB 15. Size: about 48 x 17.5 x 5 cm