Goldmund METIS 2 Bedienungsanleitung
USER MANUAL
GOLDMUND METIS 2
Analog Preamplifier
Thank you for purchasing the GOLDMUND METIS 2 Analog Preamplifier. The Goldmund Metis
line amplifiers fully incorporate the technological expertise developed by our company throughout
many years. Please take some time to read this manual. It may provide you with useful information
to make your pleasure of listening to the METIS 2 even higher.
INTRODUCTION
GOLDMUND METIS 2 - Analog Preamplifier
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 METIS 2 - Analog Preamplifier - 3
Table of Contents
1 SETTING UP THE METIS 2 5
2 FIRST INSTALLATION & CONNECTIONS 7
4 SOUND QUALITY OPTIMIZATION 9
5 CLEANING 9
6 TECHNICAL SPECIFICATIONS 10
GOLDMUND METIS 2 - Analog Preamplifier - 4
W A R N I N G !
No connection or manipulation may be done
before reading these instructions. Damage to
the analog preamplifier may result if the
following instructions are not understood and
applied.
This high quality analog preamplifier
possesses new technical features like ultra-
high bandwidth which are becoming necessary
for an accurate transcription of today’s best
analog messages in complete systems with
video, computer and audio associated
components.
Only a careful use can provide all the
satisfaction you are expecting.
All handling must be performed according to
the following instructions to avoid the
preamplifier deterioration
Nevertheless, if the instructions are perfectly
carried out, you will notice that the use of the
Goldmund METIS 2 is quite simple and
convenient.
GOLDMUND METIS 2 - Analog Preamplifier - 5
1 SETTING UP THE METIS 2
Please read very carefully the following instructions. This high-precision preamplifier will
provide the best analog signal possible thanks to its unique circuitry.
For exacting technicians, musicians, and all amateurs who demand the very best in
recording transcription, we strongly recommend the use of a top quality D/A converter to
decode the today’s high definition digital signals.
The connections between the analog sources and the preamplifier are critical. Ultra low
reflection cables are absolutely mandatory. Goldmund recommends using the Goldmund
Interconnect cables.
1.1 UNPACKING
You will find in the Goldmund Metis 2 box:
- The preamplifier
- The power cord
- The remote-control transmitter
- This manual
ATTENTION
Please keep the packaging in case you need to transport the METIS 2 at a later date or if
you have to send it for maintenance.
This packaging has been designed specifically to protect the METIS 2 in transit. Use of
alternative packaging is likely to result in damage, invalidating warranty cover.
GOLDMUND METIS 2 - Analog Preamplifier - 6
1 SETTING UP THE METIS 2 (Ctd.)
1.2 CHOICE OF THE PREAMPLIFIER LOCATION
The Goldmund Metis 2 preamplifier generates a significant amount of heat.
It is necessary to allow a proper cooling of the unit. Avoid any location which is not properly
ventilated and avoid placing the Metis 2 on top of any equipment that is generating high
temperature.
1.3 LINE VOLTAGE ADJUSTMENT
A voltage selector is provided on the back plate of the preamplifier. Adjust it with a
screwdriver if the line voltage provided is not appropriate.
ATTENTION: On the 220V position, the Goldmund Metis 2 preamplifier will function
properly for main line voltage in between 200V and 250V. On the 110V position, the main
line must deliver between 105 and 125V. 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 power cord
receptacle. The lid can be removed with a small screwdriver when the cord is removed.
Use a 500mA slow-blow fuse for 220V and 110V.
GOLDMUND METIS 2 - Analog Preamplifier - 7
2 FIRST INSTALLATION & CONNECTIONS
2.1. POWER CONNECTION
Connect the power cord to the back of the preamplifier and plug it into the nearest wall
plug. Use only a 3 lugs grounded plug, for safety and noise reasons. To get the best sound
of the preamplifier, avoid any multiple plugs or an extension cords.
If the preamplifier is the logical center of your system and you use a star grounding
configuration, you may have to use the earth connection of the AC plug and lift the earth
connection of the other equipment.
2.2. SOURCES CONNECTION
Connect the interconnects between the preamplifier analog outputs and the power amp.
You will plug the cables to the RCA female sockets noted outputs.
Connect the interconnects from the analog source devices to the line inputs number 1 to 5.
Note: a residual High Frequency noise may remain audible in some circumstances when
an input is left open and is selected. This disturbance has no effect on the preamplifier but
may be avoided easily by short-circuiting plugs applied to all the unused inputs.
GOLDMUND METIS 2 - Analog Preamplifier - 8
3 FRONT & BACK PANELS FUNCTIONS
POWER
On the back panel of the Goldmund Metis 2 preamplifier the switch is used to power the
preamplifier on. In regular use, this switch is left ON and the circuits of the preamplifier are
left ON. The muting function of the remote control is only shorting the output to ground for
safe removal of the cables to the power amplifier.
The preamp can be powered off by switching the switch to the OFF position.
However, to optimize the sound quality of the preamplifier and insure the best reliability,
Goldmund recommends that the unit is left powered ON.
MUTING
Muting is controlled from the remote control. It can be used to temporarily turn the volume
down without touching the volume control. When returned to normal, the level of the
preamplifier is returned to where it was when the muting was activated.
VOLUME
May be adjusted manually by turning the volume control or on the remote by VOLUME + or
-.
SELECTOR
Selects one of the available inputs for listening. A step clockwise is selecting the next input;
a step counterclockwise selects the previous input. A display on the front panel shows the
number of the input selected. Selection may be also made on the remote by pressing the
key corresponding to the input on the Analog section of the remote.
GOLDMUND METIS 2 - Analog Preamplifier - 9
4 SOUND QUALITY OPTIMIZATION
WARM-UP SONIC EFFECT
If the preamplifier has been left unpowered for a few days, the optimum sound quality is
only reached after a few hours. This is why Goldmund recommends leaving the METIS 2
powered on.
5 CLEANING
The Goldmund Metis 2 preamplifier usually requires no maintenance.
To clean your Metis, use a soft and slightly wet cloth. Always turn the power off before
cleaning your preamplifier.
GOLDMUND METIS 2 - Analog Preamplifier - 10
6 TECHNICAL SPECIFICATIONS
INPUT
•Input impedance: 50 kOhms
•Nominal input level: 2.25 V RMS
•Maximum input level (unbalanced): 3.6 V RMS
OUTPUT
•Output impedance: 75 Ohms
•Maximum output level (unbalanced): 3.6 V RMS
FREQUENCY RESPONSE
These values for any level to maximum output level
•+/- 0.1 dB, 10 - 20 kHz
•+/- 1.5 dB, 10 - 100 kHz
•+/- 3 dB, 10 - 200 kHz
GROUP DELAY
•Propagation delay < 1 ms stable with frequency from DC to 100 kHz
DISTORTION
With 1 V RMS output level, 80 KHz measurement bandwidth, 600 Ohms termination
impedance
•THD unbalanced in to unbalanced out < 0.005% (-90 dB) flat with frequency
•IMD unbalanced in to unbalanced out < 0.002% (-80 dB)
SPEED
•Slew rate of the amplification stages: > 20 V/us
•Rise time: < 700 ns
CROSSTALK
•Separation: > 80 dB between channels. (20 Hz – 20 kHz)
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