background image

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. Mishandling should be evident upon inspection of the shipping 

container. Carefully remove your new component from its packing and examine it 

closely for signs of shipping damage. We strongly recommend saving all original packing 

to protect your component from damage should you wish to store it or ship it at a later 

date.

Instalation

• 

Provide adequate ventilation. Do not operate on carpet or any other surface that 

might block air flow. The chassis will become warm in normal use! 

• 

Do not allow the chassis to touch any metal parts, such as the frame of an equipment 

rack. This might create a parallel ground path that could degrade the sound of your 

system. 

• 

Input connection is via single ended RCA jacks or XLR jacks (which can be from 

balanced or unbalanced sources). 

• 

Connect the input and speaker cables.

• 

Connect the power cable from the power supply to the power amplifier.

• 

Connect the power supply to the power source indicated on the voltage selector 

card (visible by the main fuse), either 115 or 230 volts AC. The voltage may be select by 

means of the removable selector card located behind the fuse in the power connectors. 

Remove the cards and reinstall so that the desired voltage may be read; be certain to 

change the fuse to the correct value. Connect the power supply to the power source 

indicated on the rear panel. Avoid power conditioners that float the ground pin. 

ALWAYS connect power cord to component before plugging it into an AC outlet, and 

make sure that unit's power switch is set to the "OFF" position before making the final 

connection. For best performance, try to route the power cord away from signal cables. 

• 

Power requirements are approximately 250 watts per channel. Pay close attention to 

power quality, and be aware that different power cords can alter the sound. 

• 

Set the input type switch to XLR or RCA, to match the source and cables.

W

ARNING

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.

UNPACKING AND INSTALLATION

5

Summary of Contents for Teres

Page 1: ...T 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 coul...

Page 2: ...ructions 3 2 Introduction 4 3 Specification 4 4 Unpacking and Installation Unpacking 5 Installation 5 5 Front Panel 6 6 Back Panel Inputs 7 Speaker outputs 7 AC Fuse 7 Battery 8 7 Operation 9 8 Tube replacement 10 CONTENTS 2 ...

Page 3: ...e 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...

Page 4: ...on RCA and one balanced on XLR Inside you get Inside you get Separate constant current PSU for the input tube and separate PSU for the output stage The input stage uses a property choke input rectifier and shunt regulator power supply solution for super low noise and stability The power supply uses a new breed of rectifier diodes made of a new material called Silicon Carbide that have no reverse c...

Page 5: ...rd visible by the main fuse either 115 or 230 volts AC The voltage may be select by means of the removable selector card located behind the fuse in the power connectors Remove the cards and reinstall so that the desired voltage may be read be certain to change the fuse to the correct value Connect the power supply to the power source indicated on the rear panel Avoid power conditioners that float ...

Page 6: ...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 FRONT PANEL Status LED ON OFF Button 6 ...

Page 7: ...tors Either banana jacks bare wires or spade plugs can be used If bare wire is used be careful that no stray strands get loose that could cause a short circuit The Common or Ground lead connects to the black jack The Hot lead goes to red jacks Bare wires and spade plugs must be tighten by rotating the ratchet screw clockwise A C Fuses and Mains switch There are fuses located in the IEC power conne...

Page 8: ...t as long as its shelf life typically 5 years or more Replace the battery if it measure 3 0 volts or less Symptoms of weak battery are distortion and the C3g running hotter than normal Replace only with type CR2032 3 volt lithium battery Make sure that the battery is installed properly in line with the marks as shown on the picture below 8 ...

Page 9: ...er switch on the back panel to save power As with all high fidelity products the sound characteristic changes somewhat as it warms up 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...

Page 10: ...nd quality starts to deteriorate Before replacing the tube all power must be turned off Unplug the power cord from the wall and remove all audio interconnect cables Wait 15 minutes before removing the tube When removing the tube handle it carefully whit minimum twists Install the new tube firmly in the socket noting the location of holes in the socket and pins of the tube taking care to make sure ...

Page 11: ...NOTES ...

Reviews: