*DANTE VERSION*

The Advanced System Controller from Linea Research is a high performance and easy to use signal processor for sound systems. With processing for 4 inputs and 8 outputs it takes advantage of the latest analogue to digital conversion and DSP technologies to deliver flawless audio that out classes its competition.

The advanced 96kHz DSP provides an array of unique and genuinely useful features. Because all aspects of the DSP algorithms are designed and hand crafted in house by Linea, they are not available on products from any other manufacturer. For example, LIR linear phase crossover filters which are as easy to use as more conventional filter shapes, and have less latency than FIR filters. Also the powerful VX Limiter suite which sports Peak, RMS and Excursion limiting, as well as multiband limiting for passive 2-way enclosures.

Supporting analogue AES3 and Dante™ inputs and having both analogue and AES3 outputs, all under full remote control, makes the ASC48 suitable for use in the most demanding applications, especially when flexibility is paramount.

When used as a loudspeaker management system or digital crossover, the ASC48 brings state-of-the-art facilities and performance, however the ability to receive, process and transmit audio without it leaving the digital domain makes the ASC48 an ideal central controller for large systems, even when amplifiers with in-built DSP are being employed.

Ethernet is used for remote control while a front panel, optimised for use in challenging environments, allows full local control of all features. Control via Linea’s intuitive System Engineer application provides many convenient and time saving features such as very flexible management of presets, and Overlay grouping of Mutes, Gains, Delays and EQ across an entire system.

Product Features

• Four input channels and eight output channels
• No compromise audio performance
• Unique, precise, 96kHz Digital Signal Processing
• Analog and AES3 inputs and outputs
• Ethernet remote control via Linea’s System Engineer PC application
• Full front panel user interface offers simple intuitive local operation
• 3rd party control via contact closure ports allow easy system integration
• OEM friendly with flexible parameter hiding
• Fully designed and engineered by Linea’s in-house development team
• Manufactured, tested, and supported entirely in the UK

Product Specifications

General

• Audio output channels:  8x Analogue / 4x Stereo AES3 and 8x Dante™ / AES67 (factory fitted option)
• Audio input channels:  4x Analogue / 2x Stereo AES3 and 8x Dante™ / AES67 (factory fitted option)
• Digital Signal Processing:  High performance 96kHz DSP on all inputs and outputs
• External Control and Monitoring:  
  • Ethernet network
  • Contact closure port

Audio Performance

• Input impedance:  <10k Ohm balanced
• Output impedance:  <100R impedance balanced
• Maximum input level:  +20dBu
• Maximum output level:  +18dBu into 600R
• Sample rate:  96kHz
• AES3 Input sample rate:  28kHz – 108kHz
• AES3 Output sample rate:  96kHz
• Frequency Response:  10Hz – 40kHz (Frequency response reduces to 23kHz on outputs with FIR enabled)
• Input dynamic range:  >120dBa typical
• Output dynamic range:  >118dBa typical
• Total harmonic distortion, THD:  <0.008% typical (20Hz – 20kHz)

Digital Signal Processing

• Resolution:  40 bit, Linea Research proprietary algorithms
• Sample rate:  96kHz throughout
• Physical inputs to DSP drive modules: 4x Analogue, 2x Stereo AES & 4x Stereo
• Dante™ inputs can be routed to four DSP drive modules
• Drive module input processing:
  • Input signal routing, Delay, Gain, HPF, Phase, Mute
  • EQ: 2x low shelf, 6x PEQ / band pass and FIR shelving filters
• Drive module output processing:
  • Source, Delay, Gain, Phase, Mute, Crossover filters, VX limiters
  • EQ: low shelf, 8x PEQ / band pass and shelving filters / 768 tap FIR
• Preset management:
  • 10 snapshots for device wide setup, 50 presets for loudspeaker settings
  • Presets can be recalled to sets of outputs or individual outputs as required

Unique high-performance processing

• Overlays:
  • Twelve additional independent overlays of EQ, Delay and Gain
  • Flexible grouping for effective control of many amplifier channels in large systems
• Class leading VX limiters:  See the ‘speaker protection systems’ section
• Hardman crossover filters:  Better out of band rejection than Linkwitz-Riley
• LIR crossover filters:  Unique Linear Phase alignments without the compromises of FIR filters

Power Supply

• Mains required:  85V to 230VAC, 50Hz - 60Hz
• Mains power:  30W
• Nominal mains input voltage range:  85V to 230V nominal
• Mains input frequency range:  50Hz to 60Hz

Physical

• Inputs:  Analogue/AES3 IN – 4x female Neutrik™
• Outputs:  Analogue/AES3 OUT – 8x male Neutrik™
• Mains input connector:  3 pin IEC
• Dante™ Primary and Secondary:  2x Shielded RJ45
• Contact closure inputs:  Phoenix™ pluggable terminal block (mating plug supplied)
• Front panel display:  Backlit, graphical, high contrast, daylight visible
• Front panel encoders:  Three, detented, velocity sensitive
• Front panel push buttons:  Large, tactile, illuminated
• LED indicators:  Bright, easily differentiated
• Enclosure Standard:  19” 1U (44mm), 254mm (10”) deep
• Net Weight:  2.7kg (6 Lbs)