Owner’s Manual For Spirito Reference Series Preamplifier
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Table of Contents Introduction......................................................................................................................... 1 The Spirito Reference Preamplifier .................................................................................... 2 Important Safety Instructions.............................................................................................. 3 1.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Table of Figures Figure 1: Lightening Flash With Arrowhead - "Dangerous Voltage" ................................ 3 Figure 2: Explanation Point - Important Operating and Maintenance Instructions............ 3 Figure 3: Spirito Front View............................................................................................... 9 Figure 4: Spirito Rear View.............................................................................
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Introduction Congratulations on your selection of a Viola Audio Laboratories product. Viola Audio Labs is devoted to the design and manufacture of the world’s best audio equipment. It is our goal to provide you with the equipment that will offer you the most pleasurable listening experiences of your life.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual The Spirito Reference Preamplifier Spirito is a modular designed preamplifier that utilizes open architecture to provide you with maximum flexibility for customization, upgrading and expansion. The Spirito is a mainframe preamplifier with a separate power supply chassis. The Spirito mainframe has ten open card slots that load from the rear and permit you to configure the preamp as you wish.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Important Safety Instructions WARNING: To reduce the risk of fire or electrical shock, do not expose this appliance to rain or moisture. CAUTION: To reduce the risks of electrical shock do not remove the cover from this product. There are no user serviceable parts within this product. Refer all servicing to qualified and authorized personnel.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual encouraged to try to correct the interference by one or more of the following measures: • • Reorient or relocate the receiving antenna Increase the separation between the equipment and the receiver Please read all instructions and precautions carefully and completely before operating your preamplifier. • Connect the equipment into an outlet on a separate circuit from that to which the receiver is connected.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Unpacking Your Preamplifier Caution: Do not attempt to unpack your Viola Spirito preamplifier unassisted! Personal injury and damage to the product is quite likely to occur unless the procedures and recommendations listed below are strictly complied with. Your new Viola Spirito preamplifier is very heavy. The shipping weight of the Spirito is approximately 121 pounds (55 kg) .
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual System Set-up and Installation 1.2 Breaking in Your New Preamplifier Although your Viola Spirito preamplifier delivers outstanding performance straight out of the box, you should expect to hear it continue to improve as it reaches its normal operating temperatures and its various components "break-in".
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Mechanical drawings are included in this manual to facilitate special installations where necessary. Please see "Dimensions" at the end of this manual.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Special Design Features Congratulations on your purchase of a SPIRITO Reference Preamplifier by Viola Audio Labs. While your new preamplifier is straightforward in everyday use, it includes several design features that are responsible for its outstanding performance. The Spirito preamplifier is a two box set, a stereo preamplifier with separate power supply.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Rejection of common mode noise and distortion is achieved in the final, current gain stage. 1.5 Use of Adaptors Your Spirito preamplifier uses state of the art balanced circuit topology. When using an adaptor to go from the Spirito balanced output to an unbalanced input, pin 1 and pin 3 must be connected together. Pin 2 is the non-inverting output and pin 1 and 3 are ground.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 1.6.1 Power Indicator Light • • • • • The ring around the power button is an LED that shows the operational status of your preamplifier: Completely off indicates that the amplifier is not connected to the AC Mains. Note: If the amplifier will not turn on, you should check your AC connections and inspect the fuses. Green indicates that the Spirito is on and ready to be used. Amber indicates that the Spirito is in standby mode.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 1.7 Rear Panel Processor Card Bay Card Bay 10 Card Bay 1 Figure 4: Spirito Rear View 1.7.1 Processor Card Bay: • The first card slot holds the Spirito Processor Card. The only card that will fit in this slot is the processor card. Do not attempt to put any other card in this card slot. You may damage the connectors on the backplane board. Refer to the section of this manual for features of this card. . 1.7.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 1.8 Spirito Reference Modules 1.8.1 Spirito Processor Card DC Power Input Remote ON / OFF RS-232 Port Reset Figure 5: Spirito Processor Card Connectors • Spirito DC power input connector. The processor card routes power to all modules via the backplane. • Remote ON / OFF provides +12vdc ON, or +0vdc OFF signal to remotely turn on power amplifiers like the Bravo.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 1.8.2 V20 Reference Input Card Balanced Input 1 . 2 Board Icon Balanced Input 2 Unbalanced Input 3 Figure 6: Spirito Reference Input Card Connectors • Spirito will accept a signal from a source with balanced outputs via a high quality XLR or Fischer connector. There are two sets of balanced inputs on the Reference Input Card. Balanced input 1 has a XLR and a Fischer connector.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual • These pin assignments are consistent with the standards adopted by the Audio Engineering Society. Refer to the operating manual of your source equipment to verify- that the pin assignments of its output connectors correspond to the Spirito input card. If not, wire the cables so that the appropriate output pin connects to the equivalent input pin. 1.8.3 V30 Reference Output Card .
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Main Screen Controls Main Volume Balance -20.0 dB 0.0 dB Setup Update Remote Amp ON Mute All OFF Module Icon Locations . . 2 2 6 4 5 9 10 2 7 8 Please press the Buttons for Actions Figure 8: Spirito Main Screen Icons 1.9 Main Amp On / Main Amp Off • This button initially appears with Remote Amp On as the button nomenclature (refer to figure 8 above).
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 1.11 Board Icons • Board icons occupy the lower half of the main screen. When the Spirito is turned on the processor will poll each of the ten card slots. When a module is found an icon for the board type is displayed on the main screen, refer to figure 8. Selecting a board icon will display a menu for that module. Selecting the input module icon brings you to the following screen. 1.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 1.13 System Update • Pressing the Update button on the main screen will bring you to the system update screen. • Pressing the Upgrade Firmware button will initiate a firmware upgrade thru the RS-232 port on the processor card. New firmware downloads will be available on our website, www.violalabs.com. • Pressing Store Update Locally will store your configuration to local flash memory on the Spirito.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual 2 Ch Input STATUS Board Name Volume Balance -20.0 dB 0.0 dB Input Bus Pair Return Active XLR/Fischer T Yes XLR/Fischer M No RCA B No Output 2 Ch Output Please press the Buttons for Actions Figure 11: Reference Input Menu Screen 1.14 V20 Reference Input Card • The input group allows you to select any one of the three inputs. As shown in figure 11, the top balanced input is active.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual Main Setup Return 1&2 3&4 5&6 7&8 Please press the Buttons for Actions Figure 12: Buss Pair Assignment 1.15 V30 Reference Output Module 2 Ch Output STATUS Board Not Muted Tape Off Volume Balance -20.0 dB 0.0 dB Channel Board Name Bus Pair Return Volume Balance Mute L +0.0 dB No No R +0.
Viola Laboratories Spirito Reference Series Preamplifier Owner's manual • Tape On/Off box enables or disables signal at the tape outputs. The signal at the tape output is a fixed output, the volume and balance control have no effect on this signal. • Board Not Muted will mute only the local V30 module. This is used if you have multiple V30 modules and want to mute only one of them in the system. • Board Name box is used to rename the V30 module. Highlight the box, a cursor will appear.
