With the new MKII Optologic, the superb sound quality of this icon is now improved in every aspect: time coherence, microdynamics, timbre, and without losing that magic atmosphere for which La Scala is widely renowned.
La Scala MkII keeps the VALVE / MOSFET hybrid circuitry, with now a pair of specially selected ECC81 tubes - a High-Frequency triode - for its extremely low noise and superb transparency.
FEATURES:
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
Specifications:
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Digital to analog conversion type
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Proprietary Optologic D/A conversion system
Pure R2R ladder - FPGA (Field Programmable Gate Arrays) based without digital filter
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Supported Native Sample Rates
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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
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DAC architecture
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Multibit sign magnitude R2R ladder (upgradable)
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Asynchronous USB (High Speed)
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USB Audio Class 2 with Type B connector
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Digital Receiver
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PLL (phase locked loop) technology 128 or 256 FS internally selectable
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AQlink (I2S bus)
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CMOS level
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Oversampling factor
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1x
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Digital inputs
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- 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)
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Analogue Outputs
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UNBAL 2 RCA Output 2.2 V RMS
BALANCED ( passive transformer's symmetrical ) 2 XLR Output : 2.2V RMS
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Output Impedance
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100 ohm RCA - 600 ohm XLR
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Load Impedance
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10 kohm (min.) RCA - 600 ohm XLR
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Frequency Response
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20Hz to 22kHz +0.5dB/-0.5dB
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Phase Response
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Linear phase
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THD + N
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<0.1% 1KHz -20dB
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Front Panel
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Power, input selector, Phase Invert switch
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Power Consumption
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100-115V / 220-240V; 50 or 60Hz - 58VA
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Dimensions
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( W x D x H ) 450 x 370 x 100 mm
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Weight
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9 kg
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Front finish
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Satin Alu Silver or Satin Black
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Case finish
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Grey Nextel powder coated
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