Helix Next DSP Ultra XT 16 Channel High End Standalone DSP

The Helix Next DSP Ultra XT is a 16-channel high-end standalone digital signal processor featuring a 12-channel high-level input, ACO platform, USB PerfectStream and TwinDSP Power processing. It is part of the Helix NEXT range, made in Germany.

Key specifications

• Outputs: 16 x RCA, 1 x optical SPDIF (96kHz), remote out
• Inputs: 8 x RCA, 12 x high-level, optical SPDIF, coaxial SPDIF, USB PerfectStream, Extension Card 2.0 slot
• DSP: 2 x 295MHz audio processors, 64-bit, 2.4 billion MAC operations per second
• Sampling rate: 96kHz
• Converters: ESS ES9841Q ADC and ES9081Q DAC
• Signal-to-noise ratio: 128dB digital input, 116dB analogue input
• Operating voltage: 9.6V to 18V
• Dimensions (H x W x D): 55 x 255.6 x 170mm

A new era of Helix DSP performance

The Helix Next DSP Ultra XT is the new pinnacle of Helix standalone DSPs. Designed for modern multi-channel sound upgrades with the highest sonic standards, it handles complex factory sound system integration, diverse signal sources and ambitious build requirements. Its comprehensive connectivity, state-of-the-art signal processing and audio performance set a new benchmark in high-end car audio. Made in Germany.

Features

• 16-channel high-end standalone DSP for challenging multi-channel sound upgrades
• TwinDSP Power: two powerful fixed-point audio DSPs with 64-bit resolution and 2.4 billion MAC operations per second, covering:
  • 12 input channels
  • 8 virtual channels
  • 16 output channels
• High-performance ESS Technology A/D converter with HyperStream® IV architecture and SABRE technology, and D/A converter with HyperStream® IV architecture and SABRE HIFI® technology — for pure signal quality, high detail resolution and low-noise, low-distortion processing from input to output
• EV-Ready: extended input voltage range up to 18V for stable operation in electric vehicles with increased on-board voltages
• Premium RCA / Cinch sockets for reliable, mechanically stable signal connections and clean signal transmission
• High-power 12-channel high-level input with up to 32V RMS input sensitivity and ADEP.3 circuit for seamless integration into factory sound systems
• USB PerfectStream technology: lossless high-resolution audio streaming (up to 192kHz / 32-bit), AISA measurement (Advanced Input Signal Analyzer) and simultaneous DSP configuration via USB-C
• VCP (Virtual Channel Processing) for flexible configuration of complex sound systems, including:
  • Cross-channel group equalisers affecting multiple output channels simultaneously
  • Multi-way speaker configuration of DSP sound effects (SFX)
  • Additional features such as Rear Attenuation
• ACO (Advanced 32-bit CoProcessor) platform supporting:
  • AISA (Advanced Input Signal Analyzer) and InputEQ for analysis and correction of input signals
  • DLC (Dynamic Loudness Control) and RTC (Remote Tone Control) for volume-dependent dynamic adjustment of highs and lows
  • Proprietary TuneEQ function for automated adjustment of input, virtual and output equalisers
  • SFX Sound Effects: Augmented Bass Processing, RealCenter and more
• Extension Card 2.0 slot for system add-ons such as Bluetooth® HD audio streaming, extra analogue inputs or future signal sources
• Two digital inputs (optical and coaxial) and one optical digital output in SPDIF format for a fully digital signal path from source to connected component
• Compact SCP (Smart Control Port) for connecting remote controls and accessories
• Full control via DSP PC-Tool 6 software for precise configuration and sound tuning in the vehicle

If you need fewer channels, Helix also offer the Helix DSP.3S 8-channel digital signal processor and the Helix DSP Mini MK2 compact 6-channel digital signal processor.