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CMX AUDIO NEW DSP Processor 8 In/8 Out DSP-880

DSP Processor (8-IN/8-OUT)


DSP-880 is a 8-IN/8-OUT digital speaker management system which maintains the same high quality hardware present in performing QRT versions. Designed for maximum versatility, it provides all the processing and control necessary for both live and fixed installation use. Proving for any crossover configuration, it offers 8 analog inputs, 8 analog outputs and a digital S/PDIF input, managed by a powerful DSP Engine, in addition to high performance 96 bit AD/DA Converters. Each input channel provides a choice of EQ with 5-band Parametric EQ, Gain control and configurable Delay. Each output offers up to 7-band of parametric equalization, in addition to the crossover filters which themselves provide slopes from 6dB/Octave up to 24dB/Octave. Each output path also features RMS Limiter and configurable Delay.The DSP-880 supports a full matrix mixing mode where inputs may be routed/mixed in any ratio to any output. For remote configuration and control  can be connected via USB. The control remote PC software allows simultaneous control up to 32 units, setting all parameters and showing real time levels.

Outstanding Performance

Excellent sonic performance with 96bit high end converters coupled with 48kHz sample rate
8 inputs, 8 outputs with full matrix mixing

Top-grade DSP Engine

5 band parametric equalization per input channel
7 band parametric equalization per output channel
Each band can be switched to Bell, Low/High Shelving, as 1st and 2nd order
Crossover filters with slopes from 6dB/Octave up to 24dB/ Octave including Butterworth, Bessel, Linkwitz-Riley
Each output features a precision dynamic range controller composed of a Limiter working on RMS value of the limiter’s input
Adjustable Delay time up to 850 ms for every input and output channel
Phase correction per output channel

Direct PCConnection

Rear panel USB connector for direct PC communications


Front panel 7-LED level meter indicators per channel
Simultaneous control up to 32 units via PC software





8 In/8 Out DSP Processor


Analog Input

8 x electronically balanced

Analog Output

8 x electronically balanced

Digital Input

1 SPDIF; Gain 0dBu

Minimum Load

150 ohm


0.001% at 1kHz 0dBu



Frequency Response

20Hz – 20kHz; -0.5dBu at 20Hz and 20kHz

AD & DA Converters

1x AK5388 24bit, 2x AK4396 24bit

DSP & Processing

DSP Engine

Dream SAM3716, 24bit (data) x 96 bit (coeff.)

DSP Resolution

24×32 bit for filtering process

96 bits resolution on intermediate computation results

Parametric Equalization

5 filters per input selected as Bell or Shelving

7 filters per output selected as Bell or Shelving

Filter Type

Bell, 1st /2nd Order Shelvings with -3dB at cutting Freq.

Filter Gain

From -15dBu up to +15dBu by 0.5dBu resolution steps

Center Frequency

Selectable with a 1/24th of octave resolution step from 20Hz up to 20kHz

Filter Q/BW

Q from 0.5 up to 3 by 0.05 resolution steps

Crossover Section HPF/LPF

Butterworth 6/12/18/24dB per octave

Bessel, Linkwitz-Riley 12/24dB per octave

Filter resolution 1/24th of octave

RMS Limiter

Threshold from 20dBu up to -10dBu

Attack time from 5ms up to 200ms (1ms resolution up to 20ms, 10ms resolution up to 100ms and 20ms resolution up to 200ms)

Release time from 0.1 sec up to 3 sec (0.1sec resolution)


848,998 ms 21us increment/decrement steps per channel


Device Presets

24 User Presets

Front Panel

7-LED meter per input channel -20dBu to +15dBu, clip

7-LED meter per output channel -15dBu to +15dBu, clip and limiter mode

Blue LED (Edit) per channel, Red LED (Mute) per channel

NAV/PM1 Rotary encoder push button switch

PM2, PM3, ENTER, ESC, UTILITY push button switches

EDIT/MUTE push button per channel

Rear Panel

8 x Input; 8x Output

1 x RCA connector (SPDIF input)

USB type A connector, 2 x Ground-lift toggle switch

IEC C13 16A connector, Power on/off switch

Main AC



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