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La Voce S2 D/A Converter

THE SECOND GENERATION LA VOCE D/A CONVERTER

The new La Voce S2 combines product innovation and state-of-the-art technology, producing superior sound performance and the best styling. Designed to provide absolute modularity and the ultimate in sound quality, La Voce S2 D/A converter is the culmination of years of aqua’s research in the areas of electronic engineering in relation to digital audio reproduction. Further refined La Voce S2, a revolutionary design which employs modular R2R type converters in DFD configuration: - cod. D104 - Burr Brown PCM1704 (2 dac) - sign magnitude R2R ladder DAC 24bit / 192 kHz - cod. D101 - Philips TDA1541A - R2R 16 bit / 96 kHz (R1, S1 grade selection on request) - cod. D165 - Analog Devices AD1865 - R2R 18 bit / 192 kHz

FEATURES

High performance proprietary DFD (Direct From Decoder) digital decoding without digital filter for purest digital signal quality

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

Precision sign magnitude R2R ladder DAC with 2 Burr-Brown PCM -1704 arrayed in dual mono configuration (PCM1704 DAC option)

Passive current / voltage conversion (I / V)

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 Bit perfect 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

FEATURES

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) – 24 bit / 384 KHz
– BNC coax (S/PDIF) 75 ohm – 24 bit / 192 KHz
– USB port – 24 bit / 192 KHz
– MODULAR INPUT upgradeable, options:
– AES/EBU balanced 110 ohm – 24 bit / 192 KHz
– RCA coax (S/PDIF) 75 ohm – 24 bit / 192 KHz
– AT&T (ST Fiber) – 24 bit / 192 KHz
– Optical TOSLINK – 24 bit / 96 KHz

Analog output:
– RCA single-ended
– XLR balanced asymmetrical (optional)

DAC options:

– cod. D104K – Burr Brown PCM1704 (2 dac) – sign magnitude R2R ladder DAC 24bit / 192 kHz – DFD MODE
– cod. D101 – Philips TDA1541A – R2R 16 bit / 96 kHz – DFD MODE (R1, S1 grade selection on request)
– cod. D165 – Analog Devices AD1865 – R2R 18 bit / 192 kHz – DFD MODE

PERFORMANCE CHARACTERISTICS

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

MODULAR:
Multibit sign magnitude R2R ladder (PCM1704 DAC option)

Analogue Outputs

UNBAL 2 RCA Output 2.1V RMS
BALANCED (asymmetrical output) 2 XLR Output : 4.2V RMS

Current / voltage conversion (I / V)

Resistor passive (I / V)

Output Impedance

100 Ω RCA – 200 Ω XLR

Load Impedance

10 k Ω (min.)

Frequency Response

20Hz to 20kHz +0.5dB/-0.5dB

THD + N

<0.1% 1KHz -20dB

Front Panel

Power, input selector, Phase Invert switch

Power Consumption

Infra Red (RC5)

Power Consumption

Power Consumption

Power Consumption

100-115V / 220-240V; 50 or 60Hz – 58VA

Dimensions

( W x D x H ) 450 x 310 x 100 mm

Weight

7 kg

Front finish

Satin Alu Silver or Satin Black

Case finish

Grey Nextel powder coated

PERFORMANCE CHARACTERISTICS

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

MODULAR:
Multibit sign magnitude R2R ladder (PCM1704 DAC option)

Analogue Outputs

UNBAL 2 RCA Output 2.1V RMS
BALANCED (asymmetrical output) 2 XLR Output : 4.2V RMS

Current / voltage conversion (I / V)

Resistor passive (I / V)

Output Impedance

100 Ω RCA – 200 Ω XLR

Load Impedance

10 k Ω (min.)

Frequency Response

20Hz to 20kHz +0.5dB/-0.5dB

THD + N

<0.1% 1KHz -20dB

Front Panel

Power, input selector, Phase Invert switch

Power Consumption

Infra Red (RC5)

Power Consumption

Power Consumption

Power Consumption

100-115V / 220-240V; 50 or 60Hz – 58VA

Dimensions

( W x D x H ) 450 x 310 x 100 mm

Weight

7 kg

Front finish

Satin Alu Silver or Satin Black

Case finish

Grey Nextel powder coated

MORE PICTURES

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REVIEWS AND AWARDS

STEREOTIMESDIGITAL AUDIO REVIEW6MOONSSTEREOLIFE
Aqua Hifi La Voce S2 DAC ($2,700.00): La Voce's big brother, Aqua HIfi's La Scala, is justifiably well regarded as a master of musicality at a non uber-DAC price point. Little brother La Voce wears the family jewels loud and proud for half the price. Years ago, a more expensive Audio Note NOS DAC set a high bar for performance in my system; a bar that wasn't approached again until La Voce arrived. This R2R NOS DAC is the genuine article; incredibly natural sounding with all genres, easily winning a place in my system up against various and sundry more 'modern' Sabre and delta/sigma based brethren. Yep; retro everything is a trend among millennials, and Aqua Hifi's La Voce S2 made it one at my house too. Some things were done a certain way for a long time for good reason.
STEREOTIMES
David Abramson
“One word to nail this Aqua’s essence? Rectitude. The La Voce S2 keeps treble incision on a short leash, there’s just the right amount of upper-mid crisp-crunch and an elegant sufficiency of low end import.”
DIGITAL AUDIO REVIEW
John H. Darko
"It really is a wonderful overall package that has me wonder."
6MOONS
Srajan Ebaen
"As far the ability to render emotion of music, Italian DAC fell far the best." (TRANSLATED)
STEREOLIFE
Krzysztof Kalinkowski

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