Wadia 121 Manual
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Wadia 121 Manual

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  • Page 1 m nu l 121Decoding omputer...

  • Page 2: Thank You

    Thank You. All of us at Wadia would like to say thank you and congratulations for purchasing the Wadia 121Decoding Computer. We sincerely believe that your Wadia 121Decoding Computer will bring you many years of musical pleasure and satisfaction. We understand how eager every new owner is...

  • Page 3: Table Of Contents

    Table of Contents Wadia Digital – a Brief History NImportant Safety Instructions Features Installation Unpacking Accessories Installing Battery in Remote Control NConnecting to AC Power NUsing Surge Protectors Connections NOutput Connections Back Panel NInput Connections NConnecting through USB Using the Remote Control...

  • Page 4: Wadia Digital - A Brief History

    In response, they founded Wadia Digital – a company based on the philosophy of applying advanced technology to improve the performance of digital audio components. Wadia’s first product, the Wadia 2000 Decoding Computer, was an absolute breakthrough in digital audio.
  • Page 5 Here is a brief list of the technological innovations the Wadia engineers have pioneered over the past 20 years: • DigiMaster ™ patented algorithm (filter optimized for reproducing music) • ClockLink ™ proprietary jitter reduction technology • SwiftCurrent current to voltage conversion technology ™...

  • Page 6: Nimportant Safety Instructions

    N Important Safety Instructions To get the best performance from your Wadia 121Decoding Computer, and for your own safety, please read and follow these important safety instructions. • Read these instructions. • Keep these instructions. • Heed all warnings. • Follow all instructions.
  • Page 7 • Important notice for USA type electrical plugs. Do not defeat the safety purpose of the polarized or grounding-type plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety.

  • Page 8: Features

    • All inputs accept up to 24-bit/192kHz input data rates • Asynchronous USB input • Wadia DirectConnect analog output with 32-bit Digital Volume Control • Digital Inputs: AES/EBU (XLR), Coaxial (RCA and BNC), Toslink Optical, USB B •...

  • Page 9: Installation

    Use care in unpacking your Wadia 121Decoding Computer. Inspect it for any shipping damage and call your dealer immediately if any is found. Do not plug your Wadia 121Decoding Computer into an C outlet if you find shipping damage. We advise saving all packing materials so that the unit can be easily and safely shipped if the need arises.

  • Page 10: Nconnecting To Ac Power

    Connecting toYour System Position the Wadia 121Decoding Computer where you would like it to reside. We recommend choosing a solid, non-resonant, level surface for best performance. Check to make sure your Wadia 121Decoding Computer has the correct AC plug for your AC line voltage. Damage caused by improper operation is not covered by the manufacturer’s warranty.

  • Page 11: Noutput Connections

    Connecting Directly to a Power Amplifier or Powered Speakers We strongly recommend that you use your Wadia 121Decoding Computer connected directly to your power amplifier. Even if you purchased your Wadia 121Decoding Computer with the intention of connecting it to your preamplifier, we suggest that you try direct connection to your amplifier.
  • Page 12 Wadia 121Decoding Computer chassis, before connecting or removing a cable. It is unlikely that a static shock will damage the unit, but it may cause the Wadia 121Decoding Computer circuitry to “lock-up” (see TroubleShooting: Lock-up – page 23).

  • Page 13: Ninput Connections

    Wadia 121Decoding Computer chassis, before connecting or removing a cable. It is unlikely that a static shock will damage the unit, but it may cause the Wadia 121Decoding Computer circuitry to “lock-up” (see TroubleShooting: Lock-up – page 23).

  • Page 14: Nconnecting Through Usb

    Important information about using a USB connection to play high performance 192kHz files. To play files using a USB connection from your computer to the Wadia 121Decoding Computer, a specific driver must be installed in your computer. The driver is already installed on MAC computers (OS 10.6.4 and higher).
  • Page 15 96kHz. Again, we highly recommend that you take advantage of your dealer’s experience and, most importantly, trust your ears. All XLR-type inputs and outputs on the Wadia 121Decoding Computer, both digital and analog, use the standard audio pin configuration: Pin 1 - Ground...

  • Page 16: Using The Remote Control

    Selecting an Input phase mute Any of the five inputs on the Wadia 121Decoding Computer can be selected by pressing the Input volume down volume up Select button on the remote control. Each...

  • Page 17: Front Panel

    Front Panel Display 1 3.5 mm Headphone Jack 2 1/4” Headphone Jack 3 Volume LEDs 4 Sampling Rate LEDs 5 Phase LED 6 Input LEDs Adjusting the Volume The total range of volume is 60dB and is divided into (120) 0.5dB steps. Those steps are represented by the 6 LEDs on the front panel.
  • Page 18 The mute section is also engaged: • Each time the Wadia 121Decoding Computer is powered-up • When the mute button is pressed When the Wadia 121Decoding Computer is in Mute Mode, the front panel will indicate this by flashing the bottom volume LED.

  • Page 19: Headphone Output

    Inverting the Phase The Wadia 121Decoding Computer has the ability to invert absolute phase in the digital domain. Pressing the Phase button on the remote control will cause the Wadia 121Decoding Computer to invert phase; pressing it again will switch the phase back to normal.

  • Page 20: Optimizing The Output Level

    Best performance is obtained when operating the Wadia 121Decoding Computer Volume Control near the top of its range. If needed, the maximum output level of your Wadia 121Decoding Computer can be adjusted to match the overall 4v – Maximum output setting (approx. +12dBV) 2v –...
  • Page 21 Critical listening should be done when the 4th or higher LED is lit. The maximum out level of the Wadia 121Decoding Computer is adjustable by means of a series of IR commands issued from the Wadia remote control.

  • Page 22: Frequently Asked Questions

    Should I use a Balanced or Unbalanced connection? If your amplifier has a true balanced input, we recommend you use the balanced analog output from your Wadia 121Decoding Computer. All things being equal, properly implemented balanced (also called differential) circuitry sounds better than unbalanced circuitry.
  • Page 23 Even the mathematical program step that performs the Digital Volume Control calculation is an integral part of the Wadia DigiMaster filter algorithm and therefore cannot be bypassed. If you do not need the Wadia Volume Control, set it to its maximum level on the LED display.

  • Page 24: Appendices

    A new unit will undergo more dramatic changes when power is applied for the first time. If you turn off your Wadia 121Decoding Computer for more than an hour, you will find that the unit will undergo a similar, but less dramatic improvement once power is reapplied.
  • Page 25 Wadia Digital. Title to Licensed Software is not transferred to the customer. The customer is granted a nonexclusive license to use the Licensed Software only on this Wadia 121Decoding Computer. At Wadia’s sole discretion, Wadia may provide customer with updates of the Licensed Software.

  • Page 26: Warranty

    3 The product must not have been stored in a humid, damp environment; nor subjected to weather, water, or salt spray. 4 During the warranty period Wadia will repair or replace at our discretion a defective Wadia 121Decoding Computer with a similar available product, at no cost to the owner for labor, materials, and shipping charges from Wadia.

  • Page 27: Specifications

    Adjustable – 16 ~ 600 Ohms Dimensions: 2.7 x 8 x 8 in., 6.68 x 20.32 x 20.32 cm Weight: 2.5 lbs. (1.13 kg) Finish: Black Powder Coated Aluminum 1556 Woodland Drive . Saline . MI 48176 USA . 734.786.9611 . www.wadia.com...

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