Audibax ADP 24 DSP - 2×4 96 kHz Digital Processor/Crossover with USB, Ethernet, RS232/485 and Wi-Fi Control (1U, 19”)
The Audibax ADP 24 DSP is a professional signal processor for managing live sound systems and fixed installations. Housed in a 1U 19” rackmount chassis, it integrates two balanced XLR inputs and four balanced outputs , 24-bit A/D and D/A conversion, and a 96 kHz/32-bit DSP engine that ensures low distortion and a wide dynamic range. Its architecture offers 8-band parametric equalization per channel , independent delays up to 1000 ms , polarity inversion, gain control, and fully configurable limiters per output to protect amplifiers and speakers. As a crossover , it allows configuration of high-pass/low-pass filters per output with Linkwitz-Riley, Butterworth, or Bessel filters on slopes up to 48 dB/octave , facilitating precise channel separation (subwoofers, bass, midrange, treble).
For integration and control, the ADP 24 DSP incorporates USB, Ethernet, RS232, and RS485 , as well as Wi-Fi with an integrated antenna for PC software operation. The front panel features a display, LED meters, and an encoder for quick access to parameters and 12 user presets . With a signal-to-noise ratio >105 dB , a frequency response of 20 Hz–20 kHz , and THD <0.01% , it delivers clean and consistent performance. Its compact and lightweight design (approx. 570 × 260 × 90 mm , 3 kg ), power consumption ≤ 25 W , and rugged finish make it suitable for rental and touring environments.
Main features
-
2x4 Topology : 2 balanced XLR inputs and 4 balanced XLR outputs.
-
96 kHz / 32-bit processing with 24-bit A/D and D/A conversion for maximum dynamic range.
-
8-band parametric EQ per input and per output, plus low-shelf and high-shelf .
-
Flexible crossover : HPF/LPF per output (Linkwitz-Riley, Butterworth, Bessel) with slopes of 12/18/24/36/48 dB/Oct.
-
Delay per channel of 0–1000 ms (fine step of 21 μs for adjustments <10 ms).
-
Output limiters with adjustable threshold, attack/start time , hold and release .
-
Control and connectivity : USB, Ethernet, RS232, RS485 and Wi-Fi (BNC antenna included); 12 user presets.
-
Local measurement and control : display, function keys, encoder and LED VU-meters on the front panel.
-
Audio specifications : SNR >105 dB, THD <0.01% (0 dBu/1 kHz), separation >80 dB.
-
Format : 1U 19” rack, IP40 , 3 kg; consumption ≤25 W.
Product benefits
-
Controlled and protected sound : per-channel limiters and precise filters to protect amplifiers and speakers.
-
Quick calibration : 8-band EQ and delay per channel allow for room correction and precise array alignment.
-
Total flexibility : multiple filter types and slopes to implement from simple 2-way to complex splits.
-
Centralized management : control via network (Ethernet/RS232/RS485/WiFi) or via USB and direct access from the front panel.
-
Easy installation : 1U 19”, standard XLR connectivity and low power consumption.
Use cases
-
Rental and events : front of house , side-fills and monitors with protection via track.
-
Fixed facilities : auditoriums, churches, multipurpose rooms and leisure venues.
-
Multi-way systems : sub/bass/mid/treble management and array alignment.
-
Mobile sound reinforcement : lightweight 1U racks for touring and traveling productions.
Frequently Asked Questions
-
How is it controlled? Via USB , Ethernet , RS232 , RS485 or Wi-Fi from PC software; also from the front panel.
-
Can I store settings? Yes, it has 12 recallable user presets .
-
What crossover filters does it include? Linkwitz-Riley, Butterworth and Bessel with slopes up to 48 dB/Oct .
-
Does it come with accessories? It includes an IEC power cable , USB cable , BNC antenna for Wi-Fi, and a manual .
-
Power supply? AC (see specifications); consumption ≤ 25 W.
Good adjustment practices
- Activate the limiters per channel and adjust the threshold according to the permissible power of speakers/amplifiers.
- Use the delay to align subs with main PA and between arrays; fine steps of 21 μs allow for precise phase adjustments.
- Start with LR24 filters as a base and adjust slopes/overlaps according to room coverage and response.
Project description
2×4 digital processor/crossover in 1U (19”) rack format with balanced XLR inputs/outputs; 96 kHz sampling, 32-bit DSP and 24-bit converters; 8-band parametric EQ per channel, low/high-shelf , polarity inversion, 0–1000 ms delay per channel; HPF/LPF filters per output (Linkwitz-Riley/Butterworth/Bessel) with slopes of 12/18/24/36/48 dB/Oct; configurable limiters per output; control via USB/Ethernet/RS232/RS485/Wi-Fi; SNR >105 dB, THD <0.01 % (0 dBu/1 kHz); dimensions approx. 570 × 260 × 90 mm, weight 3 kg, IP40.
