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DSP 24 and DSP24B

Features

2 in 4 out speaker 
processor

Controlled with

, a 

proprietary software 
that is included and 
runs on Windows 95/
98/NT

VIEW

Pseudo FIR (Finite 
Impulse Response) 
filters of up to 8192 
taps on each output

Up to 66 band 
equalization on each 
output

Crossover filters 
with 0 - 96 dB/octave 
slopes, any 
characteristics 

High resolution 
magnitude and 
phase compensation 
of the individual 
drivers is possible
with 

VIEW Pro

The DSP 24 is a 2 in and 4 out digital crossover and speaker 

equalization unit, which offers outstanding versatility for installed or

touring sound systems. 

The DSP 24 combines the function of a 2-way stereo or 3/4-way mono 

active crossover unit, with a system equalization corresponding to a 66 

band parametric equalizer. In addition, each output of the DSP 24 also 

has independent time delay, to acoustically align the speakers and/or 

drivers. Each output also has a mute switch, a digitally programmable 

analog gain control and limiter threshold with front panel control knobs. 

All crossover and equalization filters are performed digitally in the time 

domain with a pseudo FIR filter - a combination of FIR (Finite Impulse 

Response) and IIR (Infinite Impulse Response) which together emulates 

an FIR filter of up to 8192 taps. Using FIR filters makes it possible to 

create filters with the amplitude and the phase independent of each other, 

which enables the DSP 24 user to create filters with mixed phase

characteristics. Conventional minimum phase filters can also be created, 

with any curve or characteristic, with no computing latency. 

The digital crossover filters in the DSP 24 can employ up to 96 dB/

octave filter slopes. 

The system equalization and crossover filters in the DSP 24 are user 

definable in VIEW, a proprietary software package running on a PC. It 

takes the user step by step to determine all system parameters. A library 

of default setups and a library of amplifier and speaker specifications are 

also included, to which the user can add any amplifier or speaker. 

The system equalization can be created by entering one or preferably 

several speaker measurements into the PC. The software then suggests a 

”best fit” equalization, with accuracy never achieved before (more 

information is available in the VIEW brochure and 

the

). All parameters created by the software are then 

transmitted to one or several DSP 24 units via the serial communication 

or memory card, and stored in a non-volatile memory. Up to 16 setups 

can be stored in each DSP 24 unit. The DSP 24 can be used without the 

PC and the setups can then be selected with the switches on the front 

panel. The software also supports several protect functions, to prevent 

unwanted changes of the parameters and front panel settings. It also 

prevents copying of the filter parameters without a user password. 

dba audio website

23/09/03  10:41

lab.gruppen  /  DSP24

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