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2.1CH 1500W DSP PLATE AMPLIFIER (300W x2CH /8ohm + 900W subwoofer / 8ohm)

  • Model No.:DSP-31528MF
  • Made in:Taiwan, ROC
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Key Features

Introduction

DSP-31528MF is 1500W 2.1CH digital power amplifier. It is for active Public address (PA) 2.1 Channel system. Due to digital amplifier, switching power supply and with DSP function design, it’s high efficiency, high stability & lighter weight compared to traditional analog amplifier & liner transformer design.

C.  Features:

1. Digital amplifier with high current output device.
2. Two channels female combo input.
3. Two channels male XLR output.
4. Microphone channel female combo input.
5. Two channels RCA input.
6. USB port link to PC.
7. Signal indicator (LED).
8. Limit indicator (LED).
9. Power on & standby indicator (LED).
10. Microphone Gain Adj (Rotary).
11. Subwoofer Volume (Rotary).
12. Bass Adj (Rotary).
13. Treble Adj (Rotary).
14. Master Volume (Rotary).
15. Subwoofer PHASE 0-180°
16. Power Mode ON/AUTO
17. Power switch
18. IEC PLUG AC INLET
19. Output short / thermal / DC offset protect circuit.
20. On board digital signal processing includes crossovers, slope, PEQs(frequency 
point, Gain, Q value), delay time setting, output limit setting. 
21. Easy Graphic User Interface (GUI) Control for DSP parameter adjustment and
preset saved/load through USB
 22. 115V/230V Selector
 23. Two Channel SPEAKON output.

D.  Specification

1. Output power ………… Subwoofer : 1000Wrms/8ohm @ 1% THD
Satellite : 250Wrms/8ohm x 2CH @ 1% THD
2. S/N Ratio @ rated power ………………………………… > 95 dB @ A-WEI
3. THD @ A-WEI ……………………………………………………… < 0.05%
4. Input sensitivity ………………………………………………… @ 0.7v/1KHz
5. Input Impedance ……………………………………………………… 22KΩ
6. Dimension …………………………………………………………… 430(L) x 190(W) x 60(H) mm
7. Package………………………………………………………………… 8pcs/CTN


E.  Software GUI control


 
1. GUI function:
1) Full Control of the DSP
2) Graphic Frequency Response Display(PEQ and HPF ,LPF)
3) Link Function: for linking the parameters of ch1&ch2
4) Preset SAVE/LOAD

 

2. function descriptions:
1)  Filter & PEQ Frequency Response:
 
Graphically display the XOVER(HPF,LPF) & 5 band PEQ frequency Response ,user can drug the PEQ frequency band directly from the graphic to adjust the Gain & frequency . CH1 means the Satellite Frequency response and WF means SubWoofer Frequency response

2)  XOVER:
Adjust the crossover frequency by applying the HPF or LPF filter
There are different slope type available:
Butterworth -12dB/oct
Butterworth -24dB/oct
Bessel -12dB/oct
Bessel -24dB/oct
Linkwitz-Riley -12dB/oct
Linkwitz-Riley -24dB/oct
The Frequency Range :
SUB: 20~1K Hz
Satellite: 60~20K Hz
3)  PEQ:
5 Band of Parametric Equalizer is available for adjustment, 
“Bypass all “check box will bypass all the EQs by checking it. 
By press each tab button to adjust each EQ’s parameter, the present adjustment will show in red.
Frequency Range: 20Hz-20kHz , Gain Range: -12dB~ +12dB, Q range: 0.1~16
If the EQ is active, the number in the tab button will show in green, if not , it will show in black. 

4)  Delay:
Adjust the time Delay of Satellite channel
Delay time Range: 0~10ms with 0.1ms step
5)  Limiter:
Apply output limiter to limit the output power to protect the speaker, when the threshold is in 0dB means the output power will not exceed maximum RMS power.
 6)  System Function:
USB indicator shows the USB status ,if the indicator is on means the USB connection is ready
“Read Device” : read all the parameter from device
“Save” : save all present parameters to file 
“Load”: load all the parameters from file