La Voce S3 Discrete DAC
The new S3 Discrete | La Voce to the next level.
Designed to provide absolute modularity, the La Voce S3 is a pure R2R ladder - FPGA-based DAC without digital filter. It has a sign-magnitude ladder converter.
The absence of digital filtering means no processing of the input signal. The original digital samples are translated to the reproduced sound, preserving the transient shape and avoiding any ringing. 
In this way we also avoid the "intersample overs" problem that is vital to faithful reproduction, considering current recording studio practices.
With our R2R conversion technology the sound is natural, fast, dynamic, and without the sense of compression characterizing others converters.

To protect the investment, owners of original La Voce can upgrade to La Voce S3 Discrete DAC. The update for the La Voce units of existing owners consists of the following hardware / firmware modifications:

• FPGA / decoding board cod. P608, high-resolution up to 384kHz PCM and DSD128
• R2R Ladder resistors board cod. P607
• USB board cod. P901 with new firmware
• hardware modification of main board P601
• hardware modification of I2S / USB board P603

FEATURES
• High performance proprietary FPGA-based digital decoding without digital filter

• Discrete R2R ladder DACs with low noise precision resistors

• Galvanic isolated S/PDIF - AES/EBU Digital input

• 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

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

• RJ45 (AQlink) input connection, employs CAT6 cable

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

• MODULAR DESIGN with upgradeable multi board system

• 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

• AQ-i modular input: D111 XLR | D112 AT&T ST Fiber | D113 RCA | D114 TOSLINK with High Resolution platform

• Digital phase selector on front panel

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

• Aluminum 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
- USB port  -  PCM 24 bit / 384kHz - DSD64, DSD128 via DoP
- MODULAR INPUT upgradeable, options:
- AES/EBU balanced 110 ohm  -  PCM 24 bit / 192kHz - DSD64 via DoP
- RCA coax (S/PDIF) 75 ohm  -  PCM 24 bit / 192kHz - DSD64 via DoP
- AT&T (ST Fiber) -  PCM 24 bit / 192kHz - DSD64 via DoP
- Optical TOSLINK -  PCM 24 bit / 96kHz

• Analog output:
- RCA single-ended
- XLR balanced asymmetrical

5-year warranty

DATASHEET
SPECIFICATIONS

Digital to analog conversion type
Proprietary Discrete 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
- USB port  -  PCM 24 bit / 384kHz - DSD64, DSD128 via DoP
AQ-i modular input:
- AES/EBU balanced 110 ohm  -  PCM 24 bit / 192kHz - DSD64 via DoP (cod. D111)
- RCA coax (S/PDIF) 75 ohm  -   PCM 24 bit / 192kHz - DSD64 via DoP (cod. D113)
- AT&T (ST Fiber) -  PCM 24 bit / 192kHz - DSD64 via DoP (cod. D112)
- Optical TOSLINK -  PCM 24 bit / 96kHz (cod. D114)
Analogue Outputs
UNBAL 2 RCA Output 2.5 V RMS
BALANCED (asymmetrical output) 2 XLR Output : 5.5 V RMS
Output Impedance
100 ohm RCA - 200 ohm XLR
Load Impedance
10 kohm (min.) RCA - 600 ohm XLR
Frequency Response
20Hz to 50kHz +0.5dB/-0.5dB
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 310 x 100 mm
Weight
9 kg
Front finish
Satin Alu Silver or Satin Black
Case finish
Grey Nextel powder coated
MORE PICTURES

INFO AND SUPPORT
DOWNLOAD
USB Audio Class 2 Driver for WIndows
DOWNLOAD
Owner's Manual