Concerto Audio
07-10-2014, 10:11
Aqua hifi La Scala DAC (hand made in italy) on demo now:
http://i1182.photobucket.com/albums/x444/SantoshMaroly/scala_vista-DX.jpg (http://s1182.photobucket.com/user/SantoshMaroly/media/scala_vista-DX.jpg.html)
http://i1182.photobucket.com/albums/x444/SantoshMaroly/scala_interno.jpg (http://s1182.photobucket.com/user/SantoshMaroly/media/scala_interno.jpg.html)
FEATURES:
• High performance proprietary DFD (Direct From Decoder) digital decoding without digital filter for purest digital signal quality
• Custom designed discrete circuit with high-speed photocouplers for Galvanic and magnetic isolation between Digital stage and Analog DAC ground
• Jitter free digital interface AQlink (I2S protocol), uncompromising digital connection to La Diva cd transport
• Precision sign magnitude R2R ladder DAC with 4 Burr-Brown PCM -1704K arrayed in a true differential dual mono configuration
• Transformer current / voltage conversion (I / V)
• 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 XP, 7 and 8 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
• Aluminum anti-resonant cabinet with Nextel
• Designed and handmade in Italy
• Input:
- 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 - 24 bit / 192 KHz
- AT&T (ST Fiber) - 24 bit / 192 KHz (optional)
• Analog output:
- RCA single-ended
- XLR balanced symmetrical
http://i1182.photobucket.com/albums/x444/SantoshMaroly/scala_vista-DX.jpg (http://s1182.photobucket.com/user/SantoshMaroly/media/scala_vista-DX.jpg.html)
http://i1182.photobucket.com/albums/x444/SantoshMaroly/scala_interno.jpg (http://s1182.photobucket.com/user/SantoshMaroly/media/scala_interno.jpg.html)
FEATURES:
• High performance proprietary DFD (Direct From Decoder) digital decoding without digital filter for purest digital signal quality
• Custom designed discrete circuit with high-speed photocouplers for Galvanic and magnetic isolation between Digital stage and Analog DAC ground
• Jitter free digital interface AQlink (I2S protocol), uncompromising digital connection to La Diva cd transport
• Precision sign magnitude R2R ladder DAC with 4 Burr-Brown PCM -1704K arrayed in a true differential dual mono configuration
• Transformer current / voltage conversion (I / V)
• 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 XP, 7 and 8 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
• Aluminum anti-resonant cabinet with Nextel
• Designed and handmade in Italy
• Input:
- 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 - 24 bit / 192 KHz
- AT&T (ST Fiber) - 24 bit / 192 KHz (optional)
• Analog output:
- RCA single-ended
- XLR balanced symmetrical