威傲音响-总经销 NAGRA DIESIS VIOLA
SONATA PREAMPLIFIER

Input: three groups of XLR balance, three groups of RCA imbalance

Digital input: 1 set of USB audio, 1 set of S / PDIF, 1 group of AES

Output: 1 set of RCA imbalance, 1 group of XLR,

1 group of fixed tape

Frequency response: 20Hz to 20KHz ± 0.2dB

Input impedance: 1MOhm (single ended), 40kohm (balanced)

Output impedance: main output 100ohm, tape output 600ohm

Power consumption: 35W

Distortion: thd < 0.01% @ 20 kHz 1V output

Host height: 8.9cm

Host width: 44.5cm

Host depth: 38.1cm

Host weight: 8.2kg

Power supply height: 8.9cm

Power supply width: 44.5cm

Power depth: 38.1cm

Power weight: 11kg


Sonata USES a 4.3-inch TFT color touch-screen display for navigation and USES high-quality optical encoders and magnetic indexing mechanisms for volume and balance control.

The independent stabilized voltage supply is used for analog circuit and digital control function. The main analog power supply is designed with choke input, and the circuit board mounted low ESR capacitor is used for power filter.

Sonata USES opA-1 discrete low noise, high speed operational amplifier module. Opa-1 high current output stage will drive high capacitance cable and power amplifier input stage. Sonata volume and balance control USES discrete high-precision resistors, with additional dual tracking regulators for local power supply regulation.

Sonata can be controlled using the Viola Remote Apple iOS™ application or rS-232. Sonata preamplifier with + 12V trigger output, remote control of the power amplifier. The Viola Link Bus connector also controls the external Sonata power supply and the Viola Concerto power amplifier. Provide a USB master port for firmware updates.

FORTHWISE Limited exclusive distribution in mainland China
Service hotline: 020-83273835
Exhibition room address: Shop 12, lobby,building 1, DongFang Hotel, Liuhua Road, Guangzhou
FORTHWISE Limited exclusive distribution in Hong Kong and Macao
Service hotline: +852 2868 9993
Exhibition room address: Shop 216-217, ManYee Arcade, 68 Des Voeux Road, Central,  Hong Kong

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