Wadia a102 Owner's Manual

Wadia Digital, LLC. 2 Chambers Street Binghamton, New York 13903-2699

a102 power amplifier

Phone: 607-723-3539 Fax: 607-724-0549 www.wadia.com

Owner’s Manual

The lightning ash with arrowhead, within an equilateral triangle, is intended to alert the user to the presence of uninsulated “dangerous voltage” within the product’s enclosure that may be of sufcient magnitude to constitute a risk of electric shock to persons.

The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the appliance.

WARNING - TO REDUCE RISK

OF FIRE OR ELECTRICAL

SHOCK, DO NOT EXPOSE

THIS EQUIPMENT TO RAIN OR

MOISTURE.

IMPORTANT SAFETY

INSTRUCTIONS!

PLEASE READ THEM BEFORE OPERATING THIS EQUIPMENT.

1. Read these instructions.

2. Keep these instructions.

3. Heed all warnings.

4. Follow all instructions.

5. Do not use this apparatus near water.

6. Clean only with a dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus

(including ampliers) that produce heat.

9. 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. If the provided plug does

NO USER-SERVICEABLE PARTS

INSIDE. REFER SERVICING TO

QUALIFIED PERSONNEL.

not t into your outlet, consult an electrician for

replacement of the obsolete outlet.

10. Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.

11. Only use attachments/accessories specied by the

manufacturer.

12. Use only with the cart, stand, tripod, bracket, or

table specied by the manufacturer,

or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

13. Unplug this apparatus during lightning storms or when unused for long periods of time.

14. Refer all servicing to qualied service personnel.

Servicing is required when the apparatus has been damaged in any way, such as power-supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.

15. Do not expose this equipment to dripping or

To prevent the risk of electric

shock, do not remove cover or

back. No user-serviceable parts

inside.

splashing and ensure that no objects lled with liquids, such as vases, are placed on the equipment.

16. To completely disconnect this equipment from the a.c. mains, disconnect the power supply cord plug from the a.c. receptacle.

17. The mains plug of the power supply cord shall remain readily operable.

18. Do not expose batteries to excessive heat such as

sunshine, re or the like.

19. Connect mains power supply cord only to a mains socket outlet with a protective earthing connection.

Bottom view of the Wadia a102

All of us at Wadia Digital would like to say thank you, and congratulations for deciding to own this Wadia a102 power amplifier. We sincerely believe this Wadia product will bring you many years of musical enjoyment and satisfaction. Please take a short time to read the information in this manual. We want you to be as familiar as possible with all the features and functions of your new Wadia Product.

About Wadia ....

Wadia Digital, founded in 1988, is one of the original companies dedicated to high performance digital audio reproduction. Wadia is based on the philosophy of applying advanced technology to improve the performance of digital audio components. Wadia has consistently raised the standard for performance of Digital Audio playback. Some of the technological innovations pioneered by Wadia include:

• DigiMaster™ patented algorithm (lter optimized for reproducing music)

• ClockLink™ proprietary jitter reduction tech-

nology

• SwiftCurrent™ current to voltage conversion

technology

• First outboard Digital-to-Analog converter

• First to apply glass ber-optics to home audio

Our designs are born of a delicate balance of technology shaped by a passion for music. Wadia

continues to re-dene the limits of digital music

playback.

Please Take A Moment

The serial number, purchase date and Wadia Dealer name are important to you for possible insurance claim or future service. The spaces below have been provided for you to record that information:

Serial Number: _______________________________

Purchase Date: _______________________________

Dealer Name: ________________________________

Technical Assistance

If at any time you have questions about your Wadia product, contact your Wadia Dealer who is familiar with your Wadia equipment and any other brands that may be part of your system. If you or your Dealer wish additional help concerning a suspected problem, you can receive technical assistance for all Wadia products at:

Wadia Digital, LLC. 2 Chambers Street Binghamton, New York 13903 Phone: 607-723-3539 Fax: 607-724-0549

Customer Service

If it is determined that your Wadia product is in need of repair, you can return it to your Dealer. You can also return it to the Wadia Service Department. For assistance on factory repair return procedure, contact the Wadia Service Department at:

Wadia Digital, LLC. 2 Chambers Street Binghamton, New York 13903 Phone: 607-723-3539 Fax: 607-724-0549

Table of ContentsThank You

Safety Instructions ...................................................... 2

Thank You and About Wadia ......................................3

Please Take a Moment ................................................3

Technical Assistance and Customer Service .............. 3

Table of Contents ........................................................3

General Information ...................................................4

Connector and Cable Information ..............................4

Introduction .................................................................5

Performance Features ................................................. 5

Dimensions .................................................................6

Installation ..................................................................7

Rear Panel Connections and Switch ........................... 8

Connecting to a Preamplifier ...................................... 9

Output Terminals and How to Connect ............... 10 -11

Front Panel Display and Push-Button ....................... 12

How to Operate ......................................................... 13

Specifications ............................................................ 14

Packing Instruction ................................................... 15

General Information

1. For additional connection information, refer to the

owner’s manual(s) for any component(s) connected

to the Wadia a102.

2. The Wadia a102 mutes the speaker output for approximately two seconds when first turned on.

3. For the best performance and safety it is important to always match the impedance of the Loudspeaker to the Wadia a102 Power Amplifier Connections (4

or 8 ohms). Refer to “How to Connect” pages 8 thru

11.

Note: The impedance of a Loudspeaker actually var-

ies as the Loudspeaker reproduces different frequencies. As a result, the nominal impedance rating of the Loudspeaker (usually measured at a midrange frequency) might not always agree with the impedance of the Loudspeaker at low frequencies where the greatest amount of power is required. Contact the Loudspeaker Manufacturer for additional information about the actual impedance of the Loudspeaker before connecting

it to the Wadia a102.

4. In the event the Wadia a102 over heats, due to improper ventilation and/or high ambient temperature, the protection circuits will activate. The Front Panel Standby/ON LED will start flashing. When the Wadia a102 has returned to a safe operating temperature, normal operation will resume.

5. The protection circuits will also activate when improper connections are made to the Loudpeaker Output Terminals.

Caution: The Loudspeaker Output - Negative

Terminal Connections are not connected to chassis ground. Do not combine any of the Loudspeaker Ouput Terimals ( + Positive or

- Negative) connections together, ground them or connect with another amplifier.

General Information and Connector Information

6. When discarding the unit, comply with local rules or regulations. Batteries should never be thrown away or incinerated but disposed of in accordance with the local regulations concerning battery disposal.

7. For additional information on the Wadia a102 and other Wadia Products please visit the Wadia Web Site at www.wadia.com.

Connector and Cable Information

XLR Connectors

Below is the Pin configuration for the XLR Balanced Input Connectors on the a102. Refer to the diagram for connections: PIN 1: Shield/Ground PIN 2: + Output PIN 3: - Output

Trigger Control Connector

The Wadia a102 Trigger Control Input receives an On/ Off signal from +5 to +12 volts. The Trigger Control Output will in turn provide a +12 volt Output Signal with a total current up to 50mA.

Output Terminal Connector

When cables with spade lugs are used for Loudspeaker Connection, the spade lugs need an opening of at least 3/10 inch

(7. 6 m m).

PIN 2 PIN 1

PIN 3

Trigger Control

N/C

Ground

3/10 of an inch (7.6millimeters)

Introduction

The Wadia a102 Power Amplifier is one of the finest Digital Power Amplifiers available today. The 50 watts output per channel will drive any high quality Loudspeaker. The a102 reproduction is sonically transparent and absolutely accurate.

Performance Features

• Balanced and Unbalanced Inputs

Balanced connections allow long cable runs without compromising sound quality.

• Amplifier and Loudspeaker Protection

Built-in Thermal Protection Circuit guards against overheating. Provides Loudspeaker Protection when Direct Current is detected.

• Power Supply

The a102 Power Amplifier has several regulated power supplies, each one extremely stable to ensure noise free operation even though the power line varies.

Introduction and Performance Features

• LED Front Panel Indicator

A long life Light Emitting Diodes (LED) are used to

indicate the operational status of the a102.

• Die Cast Aluminium Chassis

Maintains cool operating temperatures of the internal

circuitry by the heat dissipating properties of the die cast aluminium chassis. The aluminium chassis with glass top panel is very durable and will retain its appearance for many years to come.

• Trigger Input and Output Connections

The Trigger Input and Output connection provides convenient Turn-On/Off of additional Power Amplifiers and/or Source Components.

• Gold Plated Connectors

The Input and Output Connectors Contacts are gold plated for superior corrosion resistance and high electrical conductivity.

• Custom Binding Posts

Patented gold plated output terminals deliver high current output. They accept large diameter wire and spade lugs. Banana plugs may also be used only in the United States and Canada.

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