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Thrax Audio Teres Operating Manual

Thrax audio teres audio power amplifier
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Teres
Mono Power Amplifier
by Thrax Audio
Operating Manual
Manual issued 30/11/2014
CAUTION
THE UNIT CONTAINS NO USER SERVICEABLE PARTS. DO NOT REMOVE THE COVERS. LETHAL
VOLTAGES ARE PRESENT WITHIN THE CHASSIS.
NEVER OPERATE THE AMPLIFIER WITH THE CHASSIS COVERS REMOVED.
DO NOT OPERATE THE UNIT IF WET OR NEAR WATER.
THE AMPLIFIER IS FAIRLY HEAVY. BE SURE TO USE PROPER LIFTING TECHNIQUES TO AVOID
BACK STRAIN AND INJURY. BE CERTAIN TO INSTALL IT IN A SECURE LOCATION FROM WHICH
IT CAN NOT FALL OR TIP OVER.
WARNING: Do not allow anything to touch the tube in normal operation – it becomes very
hot. Take care to keep everyone, especially children and pets, from being able to reach
and touch the tube, which becomes extremely hot and may cause serious injury. Never
touch a tube if the glass is broken. The internal structures carry high voltage and could
present a serious, possibly lethal shock. If a tube breaks, unplug the amplifier and wait 30
minutes, then remove the tube. Keep flammable objects away from the amplifier.
TIME SPENT FAMILIARIZING YOURSELF WITH THIS MANUAL WILL BE WELL REWARDED.

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Summary of Contents for Thrax Audio Teres

  • Page 1 Teres Mono Power Amplifier by Thrax Audio Operating Manual Manual issued 30/11/2014 CAUTION THE UNIT CONTAINS NO USER SERVICEABLE PARTS. DO NOT REMOVE THE COVERS. LETHAL VOLTAGES ARE PRESENT WITHIN THE CHASSIS. NEVER OPERATE THE AMPLIFIER WITH THE CHASSIS COVERS REMOVED.

  • Page 2: Table Of Contents

    CONTENTS 1. Important Safety Instructions …....…………........3 2. Introduction ………..................… 3. Specification ……..................… 4. Unpacking and Installation - Unpacking ……..................… - Installation ……..................… 5. Front Panel ……....................… 6. Back Panel - Inputs …..…...................… - Speaker outputs ………..............… - AC Fuse ……..................…...

  • Page 3: Important Safety Instructions

    IMPORTANT SAFETY INSTRUCTIONS READ ALL INSTRUCTIONS: All the safety and operating instructions of your Thrax Audio equipment should be read before power is applied to the equipment. RETAIN OWNER'S MANUAL: These safety and operating instructions should be retained for future reference.

  • Page 4: Introduction

    INTRODUCTION Teres is a two stage hybrid power amplifier, a true high end audio product, a bridge between solid-state power and vacuum tube finesse and resolution. The input stage employs the legendary Siemens C3g tube with battery bias for super low noise and extreme linearity.

  • Page 5: Unpacking And Installation

    UNPACKING AND INSTALLATION Unpacking Teres is shipped with the vacuum tube installed. Unpack carefully, keep in mind the unit weights 25 kg. All Thrax Audio shipping boxes have been specially designed to protect their contents and special care has been taken to prevent damage under normal shipping conditions.

  • Page 6: Front Panel

    FRONT PANEL "ON/OFF" Button – Switches the unit on and off. See OPERATION SECTION for details. LED Indicator - Red light indicates stand-by mode, green light – operation mode. Green light flashes during warm-up time. Status LED ON/OFF Button...

  • Page 7: Back Panel

    4 amperes "slow blow" fuses are used. For 110 volt operation the fuses should be 8 amperes. If power does not come on, contact your authorized service representative or consult the factory for more information. BATTERY XLR/RCA Selector Tube Battery Teres 410104 IEC Power Connector...

  • Page 8: Battery

    BACK PANEL Bias Battery The battery supplies a fixed grid bias to the C3g input tube. As far no current is drawn from the battery, it will last as long as its “shelf-life” (typically 5 years or more). Replace the battery if it measure 3.0 volts or less.

  • Page 9: Operation

    Best sound will be achieved after about 15 minutes of operation. Any time that the Teres power amplifier has not been used for a few weeks the sound may be different. This is also normal for high resolution audio equipment. Optimum sound should return after a few hours of operation, preferably with an audio signal.

  • Page 10: Tube Replacement

    TUBE REPLACEMENT Your Teres comes with the tube pre-installed. The Siemens C3g tube is an ultra durable German Post grade tube with working time minimum 10 000 hours. When tube replacement is due, we strongly advise you to order replacement tubes from your Thrax Audio dealer, before the sound quality starts to deteriorate.
  • Page 11 NOTES...

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