Key word:Speaker management 96k Hz sampling frequency, 24-bit A/D and D/A converter, 32-bit DSP processor Input channel With 6-band parameter EQ ,Delay ,polarity Output channelWith 6-band parameter EQ,Gain, Delay, Polarity, Crossover, Limiter/Compressor,Signal select. Build in USB & RS 485 COM Program Function ; Recall Function ; Copy Function; Save Function ; Password Function. 6-band EQ: frequency , gain & Q fact are adjustable; gain can be adjusted from -20 dB to +20 dB. ModelDP26II/DP28II/DP36II/DP46II/DP48IIInput ImpedanceBalance: 20KΩOutput ImpedanceBalance: 100ΩPC Com PortOne USB Com Port on front panel, 2 Rs485 Com Port on back panel(RJ-45)CMRR>70dB 1KHzInput Level≤+25dBuFrequency Response20Hz 20KHz ±0.5dBS/N R>110dBTHD<0.01% OUTPUT=0dBu/1KHzCrosstalk of Channels>80dB 1KHzDelay Time StepEach input channel has independent delay control, Range:0 1000mS; 21μS step 0 10mS; 84 μS step 10mS 20ms; 0.5mS step 20mS 1000mSInput/Output PolarityIn-phase(+) or reversed phase(-)Input EQ6-band parameter EQ; Frequency: 20Hz 20KHz; Gain:-20 dB +20 dB; Bandwidth: 0.05oct 3octMuteMute with each Input& Output channelInput SelectionEach input channel can be selected to each output channelOutput GainRange:-12dB +12dB, step: 0.1dBCrossoverEach output channel can be independently set as LPF and HPF. The parameters can be adjusted. Filter type :Linkwitz-Riley; Bessel; Butterworth. The Crossover Frequency: 20Hz 20KHz, Slope: 12dB/oct; 18dB/oct; 24dB/oct;48dB/oct.LimiterLimiter with each output channel. The parameters are adjustable: Threshold value: -20dBu +20dBu; step:0.5dBu. Attack time: 0.3mS 100mS. 0.1mS step 0.3 1mS; 1mS step 1mS 100mS. Release Time: Release Time can be set as twice, 4times, 6times, 8times, 16times, 32times.Output EQEach output channel has 6-band EQ: 3 modes: Lo-Shelf/Hi-Shelf/Parameter. A: Lo-Shelf: Slop: 6dB/12dB; Frequency: 20Hz 20kHz; Gain: -20dB 20dB; B: Hi-Shelf: Slop: 6dB/12dB; Frequency: 20Hz 20kHz; Gain:-20dB 20dB; C: Parameters: frequency: 20Hz 20KHz, bandwidth: 0.05oct 3oct; Step: 0.05oct; Gain: -20dB +20dB, Step 0.1dBProcessor192KHz Sampling frequency, 32-bit Floating-Point DSPDisplayWith 2*24 LCD, 8-LED input/output level. Mute and Editing mode can be displayed.Power≤25WPower SupplyAC 110V/220V 50Hz/60HzDimension(L×W×H)1PC:482×232×44/605×310×110(mm) 5PCS:620×325×630(mm)Weight1PC:4.1/5(kg) 5PCS:25(kg)