Viola Systems Spirito Reference Series Preamplifier Instrukcja Użytkownika Pobierz pdf (Strona 2)

REFERENCE PREAMPLIFIER

SPIRITO II

The Viola Spirito offers a level of transparency and musicality

that is truly state-of-the-art. It’s modular design uses an open

architecture to give the maximum exibility for upgrading and

expansion. To ensure the greatest isolation from mains borne

noise, it employs a choke input lter type power supply,

housed in a separate chassis.

Spirito II Audio Design

The Spirito uses Class A discrete circuitry and is fully

balanced throughout. The input impedance of the input

module is unusually high at 1Mohm. This avoids the loading

that can be imposed on source equipment when lower input

impedance designs are used. The fully balanced topology

ensures the maximum rejection of common mode noise,

greatly contributing to the stunning clarity and silent

backgrounds that the Spirito provides. The ability of audio

equipment to reject noise is an important consideration in the

increasing noisy modern domestic environment.

Simple User Interface

Discrete volume and balance controls are located on the front

panel. All other unit functions are controlled by a large touch

sensitive display. This allows the unit to be easily congured

and controlled in stereo, multi-channel and multi-room

modes. It also provides the exibility necessary to allow other

types of modules to be easily added in the future. The user can

assign alpha-numeric names of their choice to each input.

Low Noise Power Supply

The Spirito’s choke input lter power supply produces far less

electromagnetic interference than the capacitor input designs

most often used in preampliers. It also places less stress on

the power supply components, leading to higher reliability

and longer life. In addition it completely avoids the high

frequency noise that occurs when switch mode power

supplies are used.

The Spirito’s choke input power supply virtually eliminates

high peak ripple currents, minimizing intermodulation distor-

tion on the power supply rails and ground returns. This

further enhances the sound quality by reducing both noise

and distortion.

Modular Construction

The Spirito’s main chassis has ten user accessible card slots.

These are loaded from the rear of the unit and permit the

Spirito to be congured to suit a wide range of applications.

Viola Spirito Specications

Spirito with V20 Reference Input Module and V30 Reference Output Module

Inputs per Channel 2 XLR 1 RCA

Input Impedance 1Mohm

Frequency Response 20Hz to 20kHz +0, -0.2dB

SN Ratio < - 90 dBv

THD < 0.002 % @1kHz, 2v out, unity gain, 22kHz lter

Outputs per Channel Output 1 2 XLR in parallel

Output 2 2 XLR in parallel

Output 3 RCA (Tape)

Output Impedance Main Out 100 Ohms

Tape Out 620 Ohms

SSP Loop Yes

Maximum Gain +16dB

Frequency Response 20Hz to 20kHz ± 0.2dB

SN Ratio < - 90 dBv

THD < 0.002 % @ 1kHz, 2v out, unity gain, 22kHz lter

Dimensions Spirito 44.7cm W x 20cm H x 51cm D

Power Supply 44.7cm W x 11cm H x 51cm D

Weights Spirito 21kg

Power Supply 23kg

1 2 3 4 5 6 7 8 9 10

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