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Aqua Acoustic La Scala MKII Optologic DAC

Aqua Acoustic La Scala MKII Optologic DAC
2 580 000 Ft
the new Optologic Conversion System• High performance proprietary FPGA-based digital decoding without digital filter

• Galvanic and magnetic isolations between the FPGA and R2R ladder converter

• Discrete R2R ladder DACs with low noise precision resistors

• Jitter free digital interface AQlink (I2S protocol), uncompromising digital connection to La Diva cd transport

• Zero S/PDIF Jitter design, digital receiver stage PLL (phase locked loop) technology

• High-performance AQ Discrete Regulator (MOSFET, J-FET, BJT) for analog and digital DAC’s power supply

• Valve-Mosfet direct coupling analog stage in pure class-A without negative feedback

• MOSFET Virtual battery circuit for analog anode supply

• Soft-start power up for extended tube life

• etherCON RJ45 (AQlink) input connection, employs CAT6 cable can connect both RJ45 and professional etherCON RJ45

• 2 separate low noise power transformers, one for the analog and one for the digital section

• MODULAR DESIGN with upgradeable multi board system

• Regulated DC filament supplies with soft start for tubes

• Fully discrete analog stage, not even a single Op-Amp is used

• Proprietary USB Firmware / driver :
Apple MAC OS - Linux OS : USB asynchronous native support, no need to install drivers software

• Fully upgradeable asynchronous USB module with resolution 44.1kHz to 384kHz PCM up to 24 bits, DSD64, DSD128, operates with computers running OSX 10.7 and above, WINDOWS 10 , 8 , 7 and XP ASIO - WASAPI bit perfect high-speed

• Digital phase selector on front panel

• High-quality parts selected for sound quality:
- 105° long life capacitors
- low noise Metal Foil ultra-precision resistors
- double metallized film pulse capacitor
- ultra-fast diodes
- halogen free cables

• Aluminium anti-resonant cabinet with Nextel

• Designed and handmade in Italy

• Input:
- RJ45 AQlink (I2S serial bus) - PCM 24 bit / 384kHz – DSD64, DSD128 via DoP
- BNC coax (S/PDIF) 75 ohm - PCM 24 bit / 192kHz – DSD64 via DoP
- RCA coax (S/PDIF) 75 ohm - PCM 24 bit / 192kHz – DSD64 via DoP
- AES/EBU balanced 110 ohm - PCM 24 bit / 192kHz – DSD64 via DoP
- USB port - PCM 24 bit / 384kHz – DSD64, DSD128 via DoP

- AT&T (ST Fiber) - PCM 24 bit / 192kHz – DSD64 via DoP (optional)

• Analog output:
- RCA single-ended
- XLR balanced with transformer
  • Digital to analog conversion type
    Proprietary Optologic D/A conversion system
    Pure R2R ladder - FPGA (Field Programmable Gate Arrays) based without digital filter
    Supported Native Sample Rates
    AQlink / I2S serial bus - USB PC Audio : 44.1kHz to 384kHz PCM up to 24 bits
    DSD64, DSD128
    Supports DSD via DoP on all inputs
    DAC architecture
    Multibit sign magnitude R2R ladder (upgradable)
    Asynchronous USB (High Speed)
    USB Audio Class 2 with Type B connector
    Digital Receiver
    PLL (phase locked loop) technology 128 or 256 FS internally selectable
    AQlink (I2S bus)
    CMOS level
    Oversampling factor
    1x
    Digital inputs
    - RJ45 AQlink (I2S serial bus) - PCM 24 bit / 384kHz – DSD64, DSD128 via DoP
    - BNC coax (S/PDIF) 75 ohm - PCM 24 bit / 192kHz – DSD64 via DoP
    - RCA coax (S/PDIF) 75 ohm - PCM 24 bit / 192kHz – DSD64 via DoP
    - AES/EBU balanced 110 ohm - PCM 24 bit / 192kHz – DSD64 via DoP
    - USB port - PCM 24 bit / 384kHz – DSD64, DSD128 via DoP
    - AT&T (ST Fiber) - PCM 24 bit / 192kHz – DSD64 via DoP (optional)
    Analogue Outputs
    UNBAL 2 RCA Output 2.2 V RMS
    BALANCED ( passive transformer's symmetrical ) 2 XLR Output : 2.2V RMS
    Output Impedance
    100 ohm RCA - 600 ohm XLR
    Load Impedance
    10 kohm (min.) RCA - 600 ohm XLR
    Frequency Response
    20Hz to 22kHz +0.5dB/-0.5dB
    Phase Response
    Linear phase
    THD + N
    <0.1% 1KHz -20dB
    Front Panel
    Power, input selector, Phase Invert switch
    Power Consumption
    100-115V / 220-240V; 50 or 60Hz - 58VA
    Dimensions
    ( W x D x H ) 450 x 370 x 100 mm
    Weight
    9 kg
    Front finish
    Satin Alu Silver or Satin Black
    Case finish
    Grey Nextel powder coated
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