Thrax Audio Heros Operating Manual

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.
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 tubes in normal operation - they become
very hot. Take care to keep everyone, especially children and pets, from being able to
reach and touch the tubes, which become 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.

1. Important Safety Instructions …...................………….................................... 3

2. Introduction ………........................................................................................… 4

3. Specification ……..........................................................................................… 4

4. Unpacking and Installation

- Unpacking ……....................................................................................… 5

- Installation ……....................................................................................… 5

6. Front Panel ……..............................................................................................… 6

7. Back Panel

- Inputs …..…...........................................................................................… 6

- Speaker outputs ………......................................................................… 7

- AC Fuse …….........................................................................................… 7

8. Operation ………...........................................................................................… 8

9. Tips: Impedance Matching & Tube replacement .................................... 9

CONTENTS

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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.

HEED WARNING: All warnings on the unit and in the operating instructions should be

adhered to.

FOLLOW INSTRUCTIONS: All operating and use instructions should be followed.

CLEANING: Unplug the unit from the wall outlet and leave for at least 30 min. - make sure

the unit is not hot before you start cleaning. Use dry or damp soft cloth to clean the
surfaces. Do not use corrosive, abrasive or spray for cleaning.

VENTILATION: Do not block any ventilation openings. Do not install near any heat sources

such as radiators, heat registers, stoves, or other apparatus (including amplifiers). The unit
should not be installed in a built-in location such as a bookcase or rack unless proper
ventilation is provided.

GROUNDING: Do not defeat the safety pu r pose of the gr o u n ding-type pl u g. A

grounding-type plug has two blades and a third grounding prong. The third prong is
provided for your safety. If the provided plug does not fit into your outlet, consult an
electrician for replacement of the obsolete outlet.

POWER CORD PROTECTION: Protect the power cord from being walked on or pinched

particularly at plugs, convenience receptacles and the point where they exit from the
apparatus.

LIGHTNING: Unplug this apparatus during lightning storms or when unused for long

periods of time.

SERVICING: Refer all servicing to qualified service personnel. Servicing is required when

the apparatus has been damaged in any way, such as if the power-supply cord or plug is
damaged, liquid has been spilled inside the appliance or it has been exposed to
moisture, the appliance does not operate normally, or has been dropped.

DO NOT OPEN THE CABINET: There are no user serviceable components inside this

product. Opening the cabinet may present a shock hazard, and any modification to the
product will void your warranty.

WARNING: To reduce the risk of fire or electric shock, do not expose this apparatus to rain

or moisture.

IMPORTANT SAFETY INSTRUCTIONS

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