XTA DP 446

XTA DP446: 4‑Input, 6‑Output Loudspeaker Management Processor

The XTA DP446 is a high-precision digital processor from XTA’s 4 Series, tailored for applications requiring four input sources and six output channels in a compact 1U rack format. It offers exceptional audio accuracy, versatile routing, and robust protection features, making it a reliable workhorse for professional sound systems.

Sampling and Conversion Performance

• Operates at a native 96 kHz sampling rate with 24-bit A/D and D/A converters, ensuring detailed audio capture and smooth reproduction

• Delivers extended frequency response beyond 30 kHz and dynamic range exceeding 116 dB

Inputs and Outputs

• Four balanced inputs (analog or AES/EBU selectable), each with an impedance over 10 kΩ and CMRR above 65 dB

• Six balanced outputs, also available in analog or AES/EBU format, capable of driving +20 dBm into a 600 Ω load

• Fully flexible routing: any input can feed any output or combination thereof via a matrix architecture

Signal Processing Capabilities

Input Channel Tools

• Each input channel includes a 28-band graphic equalizer and eight parametric EQ bands

• Parametric filters support multiple response types—bandpass, notch, variable Q, shelf, all‑pass, elliptic—and also allow phase adjustment in 2° increments

Output Channel Tools

• Each of the six outputs features up to nine parametric EQ sections

• Offers crossover filter slopes ranging from 6 dB/octave up to 48 dB/octave, selectable among Butterworth, Bessel, and Linkwitz‑Riley types

• Includes per-channel gain control, mute, polarity switching, and precise delay adjustment for system alignment

Protection & Limiting

• Two-tier safety system: individual channel peak limiters plus a system-wide look‑ahead “D‑Max” clip limiter

• Limits support user-adjustable thresholds, attack times (0.3–90 ms), and release scaling (4×–32× attack time)

Delay, Phase, and System Accuracy

• Maximum delay capability of up to 650 ms, with resolution in 0.325 µs steps, enabling exact time alignment

• Channels can be grouped (ganged) for synchronized delay or EQ 

Connectivity and Physical Details

Ideal Use Cases

• Tuning and managing multi-way loudspeaker systems (up to six channels)

• Monitor mixing configurations or main/delay tower routing

• Installed audio in auditoriums, theaters, houses of worship, and performance venues

• Touring environments requiring recallable settings and rapid reconfiguration