Audibax ADP 48 DSP - Sound processor 4 inputs / 8 outputs with 96 kHz digital crossover
The Audibax ADP 48 DSP is a 19” 1U signal processor designed for PA systems, fixed installations, and rental companies that require precise system control and protection. It features four balanced XLR inputs and eight balanced outputs , operates at 96 kHz with 32-bit DSP , and offers a complete processing chain—parametric EQ, crossovers, delays, phase inversion, and a peak-detection limiter —with a flat frequency response from 20 Hz to 20 kHz and a signal-to-noise ratio (SNR) greater than 105 dB . It can be configured from the front panel or via control software using USB, Ethernet, RS232, or RS485 , and includes 12 user memories for faster setup on tours and in multipurpose venues.
Main features
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4×8 Architecture: 4 analog inputs and 8 balanced XLR outputs, nominal level 0 dB for professional integration.
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96 kHz / 32-bit processing: high-resolution conversion and calculation to maintain detail and headroom in any scenario.
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Flexible IIR/FIR crossover: Bessel , Butterworth (12/18/24/36/48 dB) and Linkwitz-Riley (12/24/36/48 dB) filters, with independent HPF/LPF adjustment for symmetric or asymmetric crossovers.
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EQ and dynamics per channel: 8-band parametric equalization, polarity inversion, mute and limiter on outputs to protect speakers and amplification.
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Input/output delay: maximum delay of up to 1000 ms, with units in ms, meters or feet for temporal alignment of clusters, subs and delays.
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Control and networks: front panel with dedicated buttons and remote control via USB/Ethernet/RS232/RS485 using Audibax DSP Control software.
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1U (19”) rack construction: IP40 indoor metal chassis, dimensions 57 × 26 × 9 cm and 3 kg in weight.
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Protections: Alarm mode by Limiter & Peak and universal switched-mode power supply for stable operation.
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Memories: 12 user presets to save and recall settings.
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Box contents: ADP 48 DSP unit, power cable, USB cable, antenna and manual.
Benefits for the user
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Precise system calibration: the set of filters, EQ and delays allows optimization of the response of arrays, sub/sat and monitors, increasing intelligibility and coherence.
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Speaker protection: peak detection output limiters to prevent overexcursion and clipping at demanding events.
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Agile workflow: 12 memories, network control and intuitive panel reduce setup times in sound checks and gig changes.
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Real scalability: 8 outputs allow you to split by channels, feed zones or create delay lines without adding extra hardware.
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Professional integration: balanced XLR connectivity and Ethernet/serial control to coexist with routers, consoles, and network management systems.
Use cases
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Main PA on tour: L/R 3 or 4-way configuration with subwoofers, front-fill and side-fill.
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Fixed venues: auditoriums, churches, theaters and clubs with various zones and pre-programmed scenes.
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Corporate events: room distribution, voice reinforcement and music with presets by format.
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Monitoring: fine-tuning of equalization, delays and protection by mix or group of sends.
Frequently Asked Questions
Can I use it as a 4-way stereo crossover?
Yes. The ADP 48 DSP has 4 inputs and 8 outputs and supports multiple crossover modes, with IIR filters and FIR support via software.
Does it include FIR?
Yes. The device allows FIR filters to be manipulated from the PC graphical interface; IIR filters (Bessel, Butterworth, Linkwitz-Riley) are adjusted on the device itself or via software.
How many presets does it store?
12 user memory banks for recalling common configurations.
How is it controlled from the computer?
Control is via Audibax DSP using USB, Ethernet, or serial ports (RS232/RS485). The IP address can be assigned automatically or manually.
What is the power supply?
AC 210–240 V , 50/60 Hz, with a typical consumption of 25 W.
Installation and handling notes
- Assign the IP address automatically (DHCP) or manually from the network menu for Ethernet control.
- Set the appropriate input level to maintain the optimal signal-to-noise ratio and avoid digital clipping.
- Use output limiters as final protection after setting excursion/voltage thresholds according to your system.
Project description
19” 1U DSP processor with 4 XLR inputs / 8 outputs , 96 kHz sampling rate, 32-bit DSP , SNR > 105 dB , 20 Hz–20 kHz frequency response, IIR filters (Bessel/Butterworth/Linkwitz-Riley up to 48 dB/oct) and software FIR filtering, 8-band parametric EQ per channel, delays up to 1000 ms, polarity and mute controls, output limiter , USB/Ethernet/RS232/RS485 control, AC 210–240 V 50/60 Hz power supply, 25 W power consumption, IP40 rating, dimensions 57 × 26 × 9 cm , weight 3 kg . Includes power cable, USB cable, antenna, and manual.
