FX12L Preamp Effects Processor Bluetooth USB Home Stage Feedback Suppression Anti-Howling Processor 1. Signal-to-noise ratioleft-right channels (1kHz, 0dB): 90dB 2. Total harmonic distortion: 1kHz-3dB 0.03% 3. Sensitivity: MIC: 6mV4kΩ; AUX: 280mV30k ohm 4. Frequency response: MIC: 40Hz-15kHz +1-6dB 5. ToneMusic: - Bass: +10dB (100Hz) - CenterSubwoofer channel: 87dB - Separation: 75dB 6. Sound quality adjustment rangeMusic - Bass: +-10dB (100Hz) - Treble: +-10dB (10kHz) 7. Microphone: - Bass: +-10dB (100Hz) - Treble: +-5dB (10kHz) 8. Dual echo effect: output level 2.8Vk ohm 9. Microphone noise gate threshold: trigger voltage 3mV, response time 3s 10. Distortion (1kHz, 30mV): 0.03% 11. Power: 25W 12. Net weight: about 2.1kg 13. Size: about 48.2 x 16.3 x 4.7cm Features: 1. Superior feedback suppression circuitry prevents howling 2. Dual-mode reverb processing delivers richer, more natural, and transparent vocal effects; outputs front (rear) leftright channels, center channel, and subwoofer channel 3. Aluminum alloy panel with 1U slim design; card-style adjustment for effortless, streamlined operation 4. Microphone features six-band parametric EQ with wider adjustment range for smoother, more refined sound without compromising original tone. Enhances single-band audio quality and effectively suppresses feedback frequencies 5. Subwoofer output design with adjustable crossover point and output gain. Features comprehensive anti-feedback circuitry; when M1C mode is activated, the low-frequency signal output port automatically attenuates by half to prevent low-frequency feedback and equipment damage. Includes a function to prevent microphone signals from entering the subwoofer channel 6. Center channel output design allows selection between musicreverb ratio or pure vocal dry signal, with independent volume and highmidlow frequency adjustment 7. Five microphone input channels: two on front panel, three on rear panel 8. Features Bluetooth audio input, optical input,