DP428s Loudspeaker Processor

Speaker library support
100 sets of preset data
64-bit multi-mode digital processing


DP428s is professionally equipped for on-site digital audio DSP processor management system;
With delay, pressure limit, EQ, phase multi-function in one;
The signal of the input/output channel is accurately indicated by the digital tube;
Various parameter settings can be controlled through USB connection/PC/MAC/IPAD/IPHONE software, the adjustment is simple and convenient, and the best partner of the line array system.
The operation interface has a variety of language options, including: English, German, Spanish, French, Dutch.

Software download

DP428操作软件(NEW) Windows 32Bit

DP428操作软件(NEW) Windows 64Bit

DP428操作软件(NEW) MAC OS 10.5.8 or higher

DP428操作软件 Windows 32Bit

DP428操作软件 Windows 64Bit

DP428操作软件 MAC OS 10.5.8 or higher

Update:      3.8.24 build 133843      2022-09-11 ;
Update:      3.8.24 build 125137      2020-01-11 ;
Update:      3.8.24 build 123146      2019-10-11 ;
Update:      3.8.24 build 119488      2019-04-09 ;


Model DP428s
Input 4 ways Balanced Type.
Output 8 ways Imbalanced Type
Input Impedance bal 20k / unbal 10k
Output Impedance ≤ 100 Ω
Output Gain From +12dB to -48dB, 0.25dB increment
Input Gain From +12dB to -48dB , 0.25dB increment
Other Parameters
Frequency Response (-0.3dB) 20Hz – 20kHz
THD+N ≤ 0.008%
Max Delay Input 2s, Output 50 ms
Dynamic Range ≥115dB
Converts Frequency (high pass/ low pass) 20Hz – 20kHz, 1Hz increment
Centre Frequency (high pass/ low pass) 20Hz – 20kHz, 1/36 octave (19980 positions) increment
Minimun Load Inpedance 600 ohms
Maximum Output Level +18dBu (600 ohms load)
Filter Gain From +12dB to -12dB, 0.25dB increment
High Pass & Low Pass Filter Q value 0.2-25 adjustable, 0.1 increment/ 10 bands/1 filter each output channel, open and close
Frequency Response Bessel/ Butterworth 6/12/18/24dB each octave, and Linkwitz-Riley 24dB/ octave
Protect Function System can be set code which can prevent unauthorized person operation.
Input Section 3 cores XLR F socket
Output Section 3 cores XLR M socket
USB Connector Square
Power Socket 3 cores ICE socket
Input Limiter/Output Limiter Threshold +24dBu to -48dBu/Threshold +12dBu to -48dBu
Start-up Time 0
Release Time 1-100
Sampling Rate 96KHZ
Phase 180° phase
LCD Display 2*16 character type LCD display
Input Level Match 2*7 points, -30dB to clip
Output Level Match 6*7 points, -30dB to clip
Preset More than 100 PCS preconfigured/ more than 100 PCS preconfigured
Language Options English, Germany, Spainish, French, Dutch
Version Information The version information of hardware, software, DSP module
Product dimensions(mm) 482 x 231 x 44.5(1U)
Package dimensions(mm) 560 x 345 x 105(1U)
G.W 4.7kg

Verity Audio reserves the rights to make changes in specification without prior notice.
The final specification is subject to the user’s manual.