Goldmund TELOS 2500 Manuale utente

USER MANUAL

GOLDMUND TELOS 2500

Universal Power Amplifier

Thank you for purchasing the GOLDMUND TELOS 2500.

You have acquired the best Universal Power Amplifier ever made for professional and

domestic uses.

Please take some time to read this manual. It will provide you with useful information to

make your pleasure of listening to the TELOS 2500 even higher.

INTRODU TION

GOLDMUND TELOS 2500 – Universal Power Amplifier

Goldmund was founded in 1978 and has ever since been dedicated to the accurate

reproduction of sound and image.

At Goldmund, we strive to lead in the creation, development and manufacture of the

industry’s most advanced technologies, including audio and video systems, home -

networking and music distribution.

The guiding principle at Goldmund is to produce a precise sound with the least possible

loss of quality through the different stages. Goldmund will never adopt a technology before

it is sufficiently developed to satisfy the high quality standards we set. This is why

Goldmund has often rejected mainstream technologies and developed its own.

GOLDMUND TELOS 2500 - Universal Power Amplifier - 3

Table of ontents

UNPA KING

UNPA KINGUNPA KING

UNPA KING

AMPLIFIER LO ATION & OOLING

AMPLIFIER LO ATION & OOLINGAMPLIFIER LO ATION & OOLING

AMPLIFIER LO ATION & OOLING

LINE VOLTAGE ADJUST

LINE VOLTAGE ADJUSTLINE VOLTAGE ADJUST

LINE VOLTAGE ADJUSTMENTS

MENTSMENTS

MENTS

ONNE TIONS

ONNE TIONSONNE TIONS

ONNE TIONS

AMPLIFIER ONTROLS

AMPLIFIER ONTROLSAMPLIFIER ONTROLS

AMPLIFIER ONTROLS

6 6

SOUND QUALI

SOUND QUALISOUND QUALI

SOUND QUALITY OPTIMIZATION

TY OPTIMIZATIONTY OPTIMIZATION

TY OPTIMIZATION

1212

SAFETY FEATURES

SAFETY FEATURESSAFETY FEATURES

SAFETY FEATURES

1414

MAINTENAN E

MAINTENAN EMAINTENAN E

MAINTENAN E

1616

TE HNI AL SPE IFI ATIONS

TE HNI AL SPE IFI ATIONSTE HNI AL SPE IFI ATIONS

TE HNI AL SPE IFI ATIONS

1616

GOLDMUND TELOS 2500 - Universal Power Amplifier - 4

W A R

W A R W A R

W A R N I

N I N I

N I N

N N

N G !

G ! G !

G !

No connection or manipulation must be done

before reading these instructions. Damage to

the amplifier may result if the following

instructions are not consciously understood

and applied.

These extremely high quality amplifiers

possess new technical features which are a

necessity for accurate sound reproduction in

the best audio systems.

Only careful installation and use can provide

the satisfaction you are expecting.

The installation instructions must be carried

out in full and the mentioned precautions

taken to get the expected result and to avoid

impairing the amplifier’s performance.

GOLDMUND TELOS 2500 - Universal Power Amplifier - 5

1 UNPA KING

You will find in the GOLDMUND TELOS 2500 box:

- The amplifier

- The power cord

- This manual

Please keep the packaging in case you need to transport the amplifier at a later date.

ATTENTION

ATTENTIONATTENTION

ATTENTION

IF YOU NEED TO RETURN THE TELOS 2500 TO THE FACTORY OR TO YOUR LOCAL

REPRESENTATIVE FOR A WARRANTY REPAIR, PLEASE NOTE THAT IT MUST BE

REPACKED IN THE ORIGINAL PACKAGING.

THIS PACKAGING HAS BEEN DESIGNED SPECIFICALLY TO PROTECT YOUR TELOS

2500 IN TRANSIT.

USE OF ALTERNATIVE PACKAGING IS LIKELY TO RESULT IN DAMAGE,

INVALIDATING WARRANTY COVER.

GOLDMUND TELOS 2500 - Universal Power Amplifier - 6

2 AMPLIFIER LO ATION & OOLING

The GOLDMUND TELOS 2500 amplifier, as all high quality amplifiers generates a large

amount of heat when driven at high levels and must be vented properly. It is mandatory to

allow a proper cooling of the heat sinks. Do not put temperature sensitive equipment on top

of the amplifier.

Due to its weight, and to maximize the effect of the built-in "Mechanical Grounding"

construction, the TELOS 2500 is better located on the floor. Other very strong supports can

be used if they offer rigid transmission to the floor.

The TELOS 2500 is built on four very hard conical feet to ensure proper vibration

transmission to the amplifier support. This evacuates all detrimental vibrations inside the

amplifier, following the famous GOLDMUND "Mechanical Grounding" principle.

If you use more than one TELOS 2500 at any location, you may decide to stack them. Be

careful that the conical feet of the top amp are inserted properly on the top of the steel bars

of the amplifier located below. You may stack up to 3 amps provided extra care is taken to

ensure proper air circulation vents the rear heat-sinks.

Depending on the flatness of the surface where the amplifier will be located, you will adjust

the four round flat feet of the amplifier to allow full contact of the points with the support.

GOLDMUND TELOS 2500 - Universal Power Amplifier - 7

3 LINE VOLTAGE ADJUSTMENTS

A voltage selector is provided inside the amplifier.

If your line voltage is not adapted to the voltage indicated on the serial plate of the

amplifier, please consult your local GOLDMUND dealer for internal adjustment.

ATTENTION

ATTENTIONATTENTION

ATTENTION

On the 220V position, the GOLDMUND TELOS 2500 amplifier will function properly for

main line voltage between 211V and 257V. On the 110V position, the main line must

deliver between 105 and 129V. If your main line is usually out of these tolerances, please

consult your GOLDMUND dealer.

Please check the value of the main line fuse. This fuse is located on the back panel of the

amplifier, above the two power cord receptacles.

Use a 16A delayed fuse.

GOLDMUND TELOS 2500 - Universal Power Amplifier - 8

4 ONNE TIONS

Connect the power cord to the back of the amplifier and plug it into the nearest wall plug.

Use only a 3 lugs grounded plug, for safety reasons. To get the best sound from the

amplifier, avoid any multiple plug or extension cord.

If used with an analog signal, connect the interconnect between the preamp and each

power amp and position the Analog/Digital input switch to analog. You may either use the

RCA female socket or the XLR. The XLR socket, especially useful in professional

installations, is wired as follows:

1. Grounding, Shielding

2. Hot

3. Cold

ATTENTION

ATTENTIONATTENTION

ATTENTION

If you want to use a symmetrical 4 wire cable, always maintain the ground/earth

switch to “Link” or you may damage your amplifier.

When used with a digital input signal, connect the digital input cable to the digital input and

switch the input switch to digital. Since a digital Spdif cable carries 2 channels you may link

the digital output to the next amplifier to transfer the second channel.

Connect the speaker cable to one of the red and black terminals in the back of the

amplifier, or, if you use a Goldmund High Definition speaker cable, you can connect directly

from the speaker cable to one of the coaxial plugs on the back panel of the amplifier,

bypassing the amplifier adapter module of the speaker cable.

The 2 separate outputs (both 5 way post and coaxial) are connected internally in parallel.

They are provided to facilitate the connection in bi-wiring systems.

You may notice that the ground of the input plug and the black speaker terminal are the

same polarity. The amplifier is non-inverting in phase.

GOLDMUND TELOS 2500 - Universal Power Amplifier - 9

5 AMPLIFIER ONTROLS

As soon as the amplifier is connected to AC line and the amplifier has not detected an error

previously, the yellow light on the amp front panel is ON.

The TELOS 2500 may be powered on either manually (Manual Operation) or automatically

when receiving a signal (Auto-Power Operation). This is selected internally by the small

white 10-position circular selector located on the top circuit of the amplifier, close to the big

capacitors.

There is one position for Manual Operation and 9 for Auto-Power Operation with various

delays to power a number of amplifiers without a big surge on the AC line.

Position 0: Manual Operation

Position 1: Power after 200ms

Position 2: Power after 400ms

Position 3: Power after 600ms

Position 4: Power after 800ms

Position 5: Power after 1s

Position 6: Power after 1.2s

Position 7: Power after 1.4s

Position 8: Power after 1.6s

Position 9: Power after 1.8s

GOLDMUND TELOS 2500 - Universal Power Amplifier - 10

5 AMPLIFIER ONTROLS ( td.)

MANUAL OPERATION

MANUAL OPERATIONMANUAL OPERATION

MANUAL OPERATION

On the front plate of the GOLDMUND TELOS 2500 amplifier you will find only two POWER

keys.

In the Manual Operation mode, the two POWER keys have to be activated simultaneously

to power the amplifier on.

This security feature is provided to avoid accidental POWER ON or POWER OFF.

When the two keys are pressed simultaneously, the amp switches on in "Operating" mode

and the center green led lights on showing the amp is POWERED ON.

If the digital input is used, the yellow led may flicker, showing there is no lock and the

amplifier remains muted until a lock is found.

With an analog input, the amplifier is immediately operational.

By pressing the right key once, the amplifier is put in Mute mode, and the green led

flickers.

By pressing the right key once again, the amplifier returns to "Operating" state.

The amp may be POWERED OFF by pressing the two POWER keys simultaneously at

anytime.

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