931/ 921 Decoding Computer System Information&Operation Manual
931/ 921 Decoding Computer System
series 9 Decoding Computer System Information&Operation Manual Table of Contents Preliminaries Brief History. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 How to Use this Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thank You All of us at Wadia would like to offer thanks and congratulations to you for purchasing the Wadia series 9 Decoding Computer System. We sincerely believe that your Wadia series 9 Decoding Computer System will bring you many years of musical pleasure and satisfaction. While every new owner is anxious to begin listening, we encourage you to take a few minutes to read and familiarize yourself with the full capabilities of the Wadia series 9 Decoding Computer System.
series 9 Decoding Computer System Overview This manual covers the installation and operation of the complete Wadia series 9 Decoding Computer System.
Quick Start Unpacking and Placement Unpack each of the cartons. Check each component for shipping damage and verify that the operating voltage matches your local AC voltage. The Wadia 931 Digital Controller should be positioned near the source components, the Wadia 921 Mono Decoding Computers should be placed near the amplifier or amplifiers. Connections Use the illustrations below and on the following page to connect the Wadia series 9 Decoding Computer System. All rear-panel connectors are labeled.
series 9 Decoding Computer System Standard Configuration: Step 1: Connect data output 1 from the Wadia 931 Digital Controller to the data input of the left channel Wadia 921 Mono Decoding Computer. Step 2: Connect ClockLink output 2 from the Wadia 931 Digital Controller to the ClockLink input of the left channel Wadia 921 Mono Decoding Computer. Step 3: Connect data output 3 from the Wadia 931 Digital Controller to the data input of the right channel Wadia 921 Mono Decoding Computer.
Installation and Set-up Unpacking Carefully unpack your Wadia 931 Digital Controller and the two Wadia 921 Mono Decoding Computers. Inspect the outside of the chassis for shipping damage. If you find any, report it to your dealer immediately. Do not plug in the Wadia 931 Digital Controller if you see any signs of shipping damage. Please save all packing materials so the unit can be easily and safely shipped if the need arises.
series 9 Decoding Computer System Connecting the Wadia 931 to a Digital Source The Wadia 931 Digital Controller has six digital inputs: • 2 glass fiber (ST) - Input 1,2 • 2 SPDIF (BNC) – Input 3,4 • 1 plastic fiber (TOSLINK) – Input 5 • 1 AES/EBU (XLR) – Input 6 Note: Input One is factory-configured for a ClockLink enabled source, such as a Wadia 270 CD Transport. Using a non-ClockLink source connected to a ClockLink input degrades the sonic performance.
Wadia Digital Sources with ClockLink The Wadia 931 Digital Controller serves as the reference clock for your entire Wadia digital system. The Wadia 931 Digital Controller uses a ultra-stable Temperature-Controlled Crystal Oscillator (TCXO) as a master clock and is further enhanced by a superior power supply. The Wadia 931 Digital Controller has a ClockLink output for source components, such as a Wadia 270 CD Transport.
series 9 Decoding Computer System Connecting the 931 and 921 Wadia 931 Digital Controller Outputs There are nine outputs on the Wadia 931 Digital Controller. One is dedicated for ClockLink and can be used to connect to a Clocklink enabled source. All of the other outputs can be configured as either ClockLink or Data outputs. This allows the Wadia 931 Digital Controller to be used in a variety of system configurations. To change the configuration of the outputs, see Configurations on page 24.
Connecting to 921 Mono Decoding Computers Step 1: Connect data output 1 from the Wadia 931 Digital Controller to the data input of the left channel Wadia 921 Mono Decoding Computer. Step 2: Connect ClockLink output 2 from the Wadia 931 Digital Controller to the ClockLink input of the left channel Wadia 921 Mono Decoding Computer. Step 3: Connect data output 3 from the Wadia 931 Digital Controller to the data input of the right channel Wadia 921 Mono Decoding Computer.
series 9 Decoding Computer System Connecting to Wadia 921 Mono Decoding Computers The Wadia 921 Mono Decoding Computer has 2 outputs: • Line-level unbalanced analog on RCA • Line-level balanced analog on XLR Connecting Directly to an Amplifier We strongly recommend that you connect your Wadia series 9 Decoding Computer System directly to your power amplifier.
Illuminated Status Indicator There is a multi-colored LED at the base of the front of the Wadia 921 Mono Decoding Computer.
series 9 Decoding Computer System Choosing a Digital Cable While the Wadia series 9 Decoding Computer System supports all currently accepted transmission formats for digital audio, we recommend using the glass optical cable that is included in your accessory kit. Wadia Digital was the first company to use glass fiber-optic data transmission in digital audio. We have continually improved this format and believe that it offers the best, most consistent performance of all the available options.
Frequently Asked Questions Should I use a Power Line Conditioner? The Wadia 931 Digital Controller and Wadia 921 Mono Decoding Computers are designed to be used without AC power line conditioners. Similarly, Wadia products are designed to achieve outstanding performance with the AC power cords included with the units. If you wish to experiment, we recommend that you proceed with caution. Only purchase an after-market AC power accessory if you are absolutely convinced that it improves sound quality.
series 9 Decoding Computer System Operation and Configuration Once the Wadia 931 Digital Controller and Wadia 921 Mono Decoding Computers are configured and installed in your system, all operation is done by using the remote control and display screen on the Wadia 931 Digital Controller. Front Panel Controls There are five buttons on the front panel of the Wadia 931 Digital Controller. During configuration mode, these buttons change functions (see Configuration).
Wadia 931 Remote Control Commands Below is a diagram of the functions for the Wadia 931 Digital Controller remote control. Keys not described below control transport functions on all current Wadia transports and CD players. See your transport or CD player manual for additional instructions.
series 9 Decoding Computer System Operational Screens There are 2 ways to navigate between the Operational Screens. The user can either scroll through them, or access them directly. The user can scroll in a loop through the Operational screens (plus the Enter Configuration Mode screen) by pressing enter, either on the front panel or the remote control. After 10 seconds of no user activity, the display will revert to the main screen.
Direct Access to Operational Screens Anytime the user presses a command, the display jumps to that screen. Balance Screen Indicates the current right/left channel balance. The balance is adjusted by pressing the right and left balance keys on the remote control. Each time a key is pressed, the volume on that channel is increased by 0.2 on the display (0.1 dB) on that channel, and decreased by 0.2 on the display for the other channel.
series 9 Decoding Computer System Volume and Input The volume can be controlled between 0 and 100. Each increment of 1 on the display is 0.5 dB, so the attenuation range is from -50 dB at a volume setting of zero, to 0 dB at volume setting of 100. The display jumps to the main screen whenever the volume or input is changed. Mute Mute is engaged by pressing the mute key on the remote control. The volume is set to zero by sending a stream of zero data to the output, or by interrupting the output.
Additional Features Standby The Wadia series 9 Decoding Computer System can be put into Standby Mode. To enter standby mode, use the volume down button to set the volume to zero. Then press the mute key. In Standby Mode, the power to the output stage is turned off, and the output is muted. However, temperature-sensitive components remain powered-up so that the system is ready for top performance as soon as operation begins.
series 9 Decoding Computer System Configuration Entering Configuration Mode To enter configuration modes, the user uses the enter key on the remote or front panel to scroll through the main screens to reach the “Enter Configuration Mode” screen. Using the Next Input or Previous Input front panel controls, the user selects “Y”, and presses enter.
Configuration Menu Screen Map 23
series 9 Decoding Computer System Configuring Inputs The Wadia 931 Digital Controller Inputs can be configured to be: • On or Off • ClockLink On or Off • Custom Input Name • Configure Input Enabled or Disabled If you intend to use an input, configure it as enabled. Disabling an input will shut off all associated circuitry. Inputs that are disabled cannot be selected during operation. As shipped from Wadia, all inputs are configured as Enabled. ClockLink is on for input 1 and turned off for all other inputs.
Configure Input Name You can customize the name of any input to correspond to the type of component connected to it. (E.g. In 1: Wadia 270 Transport) I n p u t I N 4 : 4 N a m e C o a x i a l As shipped from the factory, all input names correspond to the transmission format, for example: “In 1: Glass Optical 1” or “In 4: COAX ” How to do it: To configure the name of an input, navigate to the Configure Input Name screen. Use the up and down arrows to change each character to spell out the desired name.
series 9 Decoding Computer System How to do it: Use the menu map to navigate to the Configure outputs screen and select ‘y” as shown below: Select the number of the output you wish to configure, in this case output 2, and press the enter key: W h i c h O u t p u t ? 1 2 3 4 5 6 7 8 E x i t Choose the desired setting for this output.
Restoring Factory Settings You can restore all the Wadia 931 Digital Controller configuration settings back to the factory defaults.
series 9 Decoding Computer System Appendices Troubleshooting: Lock-up If the Wadia series 9 Decoding Computer System experiences a powerful static shock or sudden AC surge, it is possible to “lock-up” the computer circuitry. A locked-up computer may result in erratic display, no output, and no response to remote commands. If your Wadia series 9 Decoding Computer system should lock-up, unplug the AC cord. Wait at least 30 seconds before plugging the unit in again.
Technical Specifications Digital Inputs 2 ST Glass Fiber Optic 2 SPDIF (BNC) 1 plastic Fiber Optic 1 AES/EBU Data PCM and DSD Decoding Software DigiMaster 1.4 D>A Sample Rate 2.
series 9 Decoding Computer System Safety Precautions To get the best performance from your Wadia series 9 Decoding Computer System, and for your own safety, please read and follow these important safety instructions. 1. Before operating the Wadia series 9 Decoding Computer System please read all of the operating and safety instructions. 2. Never place the Wadia series 9 Decoding Computer System near heat sources such as radiators, fireplaces, stoves, or other appliances that produce heat.
Warranty This Warranty covers the Wadia series 9 Decoding Computer System. Wadia warrants that this product shall be free from defects in materials and workmanship for five years. The warranty period begins at the date of sale and is subject to the following requirements and understandings: 1. This is a non-transferable warranty applicable to the original purchaser exclusively. 2. The product must not have been modified in any manner whatsoever, or the warranty is immediately voided. 3.
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