Model: SP260 (2input, 6output) Digital Speaker Processor
            SP280 (2input, 8output) Digital Speaker Processor
            SP460 (4input, 6output) Digital Speaker Processor
            SP480 (4input, 8output) Digital Speaker Processor
Key Feature
1) 96k Hz sampling frequency, 24-bit A/D and D/A converter, 32-bit DSP processor
2) Input channel: With 6-band parameter EQ ,Delay ,polarity
3) Output channel: With 6-band parameter EQ, Gain, Delay, Polarity, Crossover,
Limiter/Compressor,Signal select.
4) Build in USB & RS 485 COM
5) Program Function ; Recall Function ; Copy Function; Save Function ; Password Function.
6) 6-band EQ: frequency , gain & Q fact are adjustable;
gain can be adjusted from -20 dB to +20 dB.

Model	SP260/SP280/SP460/SP480
Input Impedance	Balance: 20KΩ
Output Impedance	Balance: 100Ω
PC Com Port	One USB Com Port on front panel, 2 Rs485 Com Port on back panel(RJ-45)
CMRR	>70dB@1KHz
Input Level	≤+25dBu
Frequency Response	20Hz~20KHz ±0.5dB
S/N R	>110dB
THD	<0.01% @OUTPUT=0dBu/1KHz
Crosstalk of Channels	>80dB@1KHz
Delay Time Step	Each input channel has independent delay control, Range:0~1000mS; 21μS step@0~10mS; 84 μS step@ 10mS~20ms; 0.5mS step@ 20mS~1000mS
Input/Output Polarity	In-phase(+) or reversed phase(-)
Input EQ	6-band parameter EQ; Frequency: 20Hz~20KHz; Gain:-20 dB~+20 dB; Bandwidth: 0.05oct~3oct
Mute	Mute with each Input& Output channel
Input Selection	Each input channel can be selected to each output channel
Output Gain	Range:-12dB~+12dB, step: 0.1dB
Crossover	Each 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.
Limiter	Limiter 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 EQ	Each 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 0.1dB
Processor	96KHz Sampling frequency, 32-bit Floating-Point DSP
Display	With 2*24 LCD, 8-LED input/output level. Mute and Editing mode can be displayed.
Power	≤25W
Power Supply	AC 110V/220V 50Hz/60Hz
Dimension(L×W×H)	482×232×44mm
Gross Weight	5.0kg