Bettermaker Mastering Equalizer, Stereo Equalizer, Analog 2-channel equalizer with digital control and preset memory with 399 places, Stereo, dual mono and mid / side operation with solo function, Stereo 12 or 24dB / oct. High pass filter with adjustable cutoff frequency (10 - 250 Hz) and resonance, 4 Parametric stereo filters, each with ± 15 dB gain and variable Q factor (0.2 - 2), EQ1: 22 Hz - 470 Hz (bell / shelf), EQ2: 90 Hz - 2 kHz (bell), EQ3: 400 Hz - 10 kHz (bell), EQ4: 1kHz - 23kHz (bell / shelf), Additional passive stereo equalizer with extended hi-boost section (20 and 28 kHz) and separate frequencies for low-boost and low-cut settings, Gain Lock and Auto-Q functions, Can be controlled and automated via plug-in and USB connection, Supported formats: AU / VST / VST3 / AAX, Maximum input level: +23 dBu, Maximum output level: +23 dBu, Frequency response: 5 - 30.0000 Hz (+/- 0.1 dB), Dynamic range:> 129 dB @ +18 dBu, 20 kHz BW, THD + N: 0.023% @ +4 dBu, 0.1% @ +18 dBu, 20-20 kHz, Crosstalk: min -90 dB @ 1KHz, max -55 dB @ 30Hz, +18 dBu, 20 kHz BW, 2 Balanced XLR inputs, 2 Balanced XLR outputs, Dimensions (H x W x D): 19 ""x 2 U x 250 mm, Weight: 5.5 kg