Linea Research ASC48 System Processor

• 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

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)