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Table of Contents
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Summary of Contents for Thrax Audio Heros
- Page 2 Heros Mono Power Amplifier by Thrax Audio Operating Manual Manual issued 31/01/2013 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.
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Page 3: Table Of Contents
CONTENTS 1. Important Safety Instructions …....…………........3 2. Introduction ………..................… 3. Specification ……..................… 4. Unpacking and Installation - Unpacking ……..................… - Installation ……..................… 6. Front Panel ……....................… 7. Back Panel - Inputs …..…...................… - Speaker outputs ………..............… - AC Fuse ……..................…... -
Page 4: 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 5: Introduction
The Heros mono power amplifier is a top end audio amplifier and an unique component. Its unusual topology, premium parts, and flexibility make it a pleasure to hear and operate. Heros is a two stage hybrid power amplifier – tube input stage and solid state output stage with transformer loaded output. -
Page 6: Unpacking And Installation
UNPACKING AND INSTALLATION Unpacking The Heros is shipped with the vacuum tube istalled. Unpack carefully, keep in mind Heros weights 30 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 7: 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. ON/OFF Status LED Button BACK PANEL Inputs A XLR jack is provided for balanced connection to a pre-amplifier. -
Page 8: Speaker Output
BACK PANEL Gain swich Low / High positions to select the gain suitable to your audio system Speaker impedance switch 4 Ohm / 8Ohm - Use this to select the output impedance Speaker output The speaker cables connect to the Speaker Connectors. Either banana jacks, bare wires or spade plugs can be used. -
Page 9: Operation
Best sound will be achieved after about 15 minutes of operation. Any time that the Heros 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: Tips: Impedance Matching & Tube Replacement
Choose the connection that sounds best to your ears. Tube replacement Your Heros comes with the tube pre-installed. Tube's working time is approximately 2 000 hours. When tubes replacement is due, we strongly advise you to order replacement tubes from your Thrax Audio dealers, before the sound quality starts to deteriorate. - Page 11 NOTES...
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