Aqua La Scala MKII Optologic DAC

Aqua La Scala MKII Optologic DAC
Aqua La Scala MKII Optologic DACAqua La Scala MKII Optologic DACAqua La Scala MKII Optologic DACAqua La Scala MKII Optologic DACAqua La Scala MKII Optologic DAC
(£4,991.67 Exc. VAT)
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Shipping Typically 5-7 Days

Free U.K. Delivery

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01892 532 995

Free standard next day delivery
  • Precision sign magnitude R2R ladder DAC
  • Proprietary DFD digital decoding
  • Custom designed discrete circuit 
  • Jitter free digital interface AQlink 
  • Long-life valves 
Aqua HiFi
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Why buy from us?

Again , La Scala D/A converter proves that an instant classic does not mean a product whose destiny is to become obsolescent, like most of the products in the high-end world.

Now, after the first appearance in the flagship FORMULA dac, the proprietary D/A conversion system developed by AQUA is now available for La Scala MkII dac.

So, our aficionados, who bought La Scala MkII dac before, have now the opportunity to upgrade their unit in order to reach to the revolutionary Optologic D/A conversion system. 

The already extraordinary sound quality of this icon is now improved in every aspect: time coherence, micro-dynamics, 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 selected Telefunken ECC81 tubes - a High-Frequency triode - for its low noise main feature.

Shipping typically 2-3 days
  • 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 up to 24 bit and 192 KHz, 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


  • etherCON RJ45 AQlink (I2S serial bus) – 24 bit / 384 KHz
  • AES/EBU balanced 110 ohm – 24 bit / 192 KHz
  • BNC coax (S/PDIF) 75 ohm – 24 bit / 192 KHz
  • RCA coax (S/PDIF) 75 ohm – 24 bit / 192 KH
  • USB port – USB port – 24 bit / 384 KHz – DSD/64 & DSD/128
  • AT&T (ST Fiber) – 24 bit / 192 KHz (optional)

Analog outputs:

  • RCA single-ended
  • XLR balanced with transformer
  • Native Sample Rates Supported: S/PDIF – AES/EBU : 24 bit / 192 KHz, AQlink – I2S serial bus 24 bit / 384 Khz
  • Asynchronous USB (High Speed): USB Type B
  • Digital Receiver: PLL (phase locked loop) technology 128 or 256 FS internally selectable
  • AQlink (I2S bus): CMOS level
  • Digital filter: Proprietary DFD (Direct From Decoder) digital decoding without digital filter
  • Oversampling factor: 1x
  • Digital to analog conversion type: Multibit sign magnitude R2R ladder (upgradable)
  • Analogue Outputs: UNBAL 2 RCA Output 2.4 V RMS
  • BALANCED (symmetrical output) 2 XLR Output: 4.8V RMS
  • Output Impedance: 100 Ω RCA – 200 Ω XLR
  • Load Impedance: 10 k Ω (min.)
  • Frequency Response: 20Hz to 20kHz +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

UK Delivery

  • FREE delivery via DPD Local By 12pm on orders to value over £300, including one hour delivery window service 'Predict & Follow My Parcel'.
  • Royal Mail Special Delivery By 1pm costs between £5.00 - £10.00 on orders to value under £300, dependent on weight.
  • Saturday or Sunday delivery available upon request for supplemental charge.

EU Delivery

  • £25 delivery charge 'Flat Fee' via DHL Europe by Road service (3-5 days) which provides comprehensive tracking of shipments online.
  • £60 delivery charge 'Flat Fee' via DHL Europe by Air service  (1-2 days) which provides comprehensive tracking of shipments online.

USA & Canada Delivery

  • Services based on your order being shipped to the U.S. and Canada are calculated as follows:
    £100 delivery charge 'Flat Fee' via DHL international 'Day Definite' service per parcel.
    Receiver is responsible for the payment of local Duties and Taxes.


  • Not all products are available for order into Europe, USA & Canada


  • Full manufacturer's warranty on all new purchases. Standard warranty is typically 2 years with some goods coming with 6 years manufacturer's warranty.
  • Goods purchased in UK and EU are covered by the Consumer Contracts Regulations.

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