Aqua Acoustic Aqua La Scala MKII Optologic Digital Analog Converter (DAC)

Electrical Disclaimer Further Information

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Please find for sale my Aqua La Scala MKII Optologic DAC.

 

I am the original owner of this fine piece of hand-made Italian audio excellence.

 

Having owned it for about 3 years, and it being purchased from local  authorised dealer, this unit will be protected with the balance of 5 year Australian warranty.

 

I can say the La Scala performs exactly as the reviews describe - simply stunning!

It's sonic signature and presentation are characterised by exceptional micro level detail retrieval, pin-point imaging, wide and deep soundstaging, and accurate tonal balance, just to name a few strengths.

 

This unit presents as new and operates flawlessly.

 

I have all the original factory packaging (all contents) for safe transportation and I'm willing to post at buyers expense.

The photos form part of the description. The unit has been kept in my hi-fi rack since new and comes from a child, pet and smoke free home.

 

Thanks for looking and please feel free to ask any questions. 

 

 

Stereonet review available here:

https://www.stereonet.com/au/reviews/aqua-la-scala-mkii-optologic-dac-review

 

 

FEATURES OVERVIEW 

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