Dx46 FIR-DRIVE
The Electro-Voice Dx46 Digital System Processor is a universal two-input, six-output digital signal processor with the
configuration flexibility to handle a multitude of audio system needs and applications; installed sound, house of
worship, convention & meeting facilities, concert touring, club, portable sound reinforcement and more. The internal
signal processing structure can be configured as 2-way stereo + full-range, 3-way stereo, 4-way mono + fullrange, 5-way
mono + full range, 3-way stereo with a mono sub + full-range, 4-way stereo with mono sub and low frequency and
finally as a freely assignable 2 x 6 matrix router.
The Dx46 replaces entire racks of signal processors previously needed to properly configure and control sound
reinforcement systems with a single Dual-Core DSP processor. The substantial advantages of the Dx46 over discrete
signal processing racks include:
– 24-bit, 48 kHz digital signal path
– No patch cables to fail or add noise
– Optimal gain structure throughout all stages of signal processing; no gain matching from processor to processor
– Recallable factory and user presets; instant system reconfiguration for differing applications and performances
– Easy, intuitive operation and editing with a PC and IRIS-Net
FIR-DRIVE
The Dx46 includes Finite Impulse Response (FIR) filters at each output for loudspeaker linearization. Using FIR filters
has the following advantages, compared to using IIR filters (e.g. Bessel, Butterworth,…).:
– extremely linear frequency response
– very high stop-band attenuation
– linear phase systems
To sum up, FIR-DRIVE allows the linearization of frequency and phase of your Electro-Voice loudspeakers. Activating
FIRDRIVE is as easy as loading a FIR Speaker Setting in the output channel of the Dx46. The IRIS-Net software is used
for loading Speaker Settings, and lots of Electro-Voice FIR Speaker Settings are included. Please refer to the
documentation of IRIS-Net for more details about using Speaker Settings.
Each Dx46 Digital System Processor includes the following signal processing blocks:
INPUTS
– Pilot tone detection
– VU Metering of input signal
– Analog or digital (AES/EBU) Inputs
– 24-bit, 48 kHz A/D converters
– 10-band parametric equalizer
– 31-band graphic equalizer
– Delay
MATRIX ROUTER / MIXER
– Two inputs (stereo)
– Summed left / right (mono) input
– Six assignable outputs
OUTPUTS (EACH)
– Array control (5-band equalizer +delay)
– Cross-over (hi-pass / low-pass filters), with selectable filter types
– 6-band parametric equalizer
– FIR filter with 512 Taps
IRIS-Net
DIGITAL SOUND PROCESSOR | en 649
Bosch Security Systems B.V. User Manual 2017.05 | 3.20 | F.01U.119.956
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