Nagra MELODY Manual de usuario
P/N:
2055027151
All rights reserved
–
© 2013
MELODY – solid state preamplifier
User manual
2
Nagra – MELODY
Table of contents
Safety warning ........................................................................................... 3
Warranty ................................................................................................... 3
Congratulations .......................................................................................... 4
Package contents ..................................................................................... 4
Installation ................................................................................................. 5
Positioning .............................................................................................. 5
Connection block ..................................................................................... 5
Front panel ............................................................................................. 6
Connecting the mains ............................................................................... 7
Connecting an optional external power supply ............................................. 7
Fuse replacement .................................................................................... 7
Nagra Modulometer ................................................................................. 9
Gain selection ......................................................................................... 9
LED and Modulometer intensity adjustment ................................................ 9
Balance fine adjustment ........................................................................... 9
Remote control ...................................................................................... 10
Phono input settings (optional) ................................................................ 11
Case cleaning ........................................................................................ 13
Technical specifications .......................................................................... 13
Déclaration de conformité .......................................................................... 14
Declaration of conformity ........................................................................ 14
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Nagra – MELODY
Safety warning
•Read this manual carefully before operating the MELODY;
•Should you have any questions on how to setup or use your MELODY,
please contact your Nagra dealer;
•Audio Technology Switzerland SA declines any responsibility in the
event of an accident caused by the non observance of these
instructions or any other form of user negligence;
•There are no user adjustments inside the MELODY or the power supply,
do not attempt to open them.
Warranty
Audio Technology Switzerland SA, certifies that this device has been inspected
and tested before leaving the factory.
Every Nagra unit goes through our test laboratory. The result of the
measurements is recorded in the “Protocol” documentation that comes with your
device.
We guarantee our products against all manufacturing defects, for a period of
three years, running from the date of delivery to the customer (validated by the
serial number on the device casing and the invoice from an official Nagra dealer).
This warranty is only valid for the original purchaser of new equipment.
This limited warranty covers the repair and replacement of defective parts,
excluding any other remedy.
The absence of a serial number invalidates the warranty.
We decline any responsibility for damages resulting directly or indirectly from the
use of our products.
As we constantly strive to improve our products, we reserve the right to modify
them or change their specifications without notice.
Disposal of old electrical & electronic equipment (Applicab
le in the
European Union and other European countries with separate
collection systems).
This symbol on the product or on its packaging indicates that this
product shall not be treated as household waste. Instead it shall be
handed over to the applicable collection point for the recycling of
electrical and electronic equipment. By ensuring this product is
disposed of correctly, you will help prevent potential negative
consequences for the environment and human health. The
recycling of materials will help to conserve natural resources. For
more detailed information about recycling of this product, please
contact your local authority, your household waste disposal service
or the shop where you purchased the product.
Applicable to the following devices: MELODY preamplifier.
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Nagra – MELODY
Congratulations
Congratulations! You have just acquired one of the best ever preamplifiers.
The MELODY was created by an engineering team with more than 60 years’
experience designing world class products for the professional audio, national
security and military businesses.
Ever since its creation in 1951, Nagra builds devices that offer exceptional sonic
performance. The company has received many awards for its technical
innovations and the excellence of its products. Among the most prestigious,
Nagra has been awarded three Oscars
®
and one Emmy
®
.
The professional and Hi Fi ranges are designed by the same Research and
Development department. Nagra has launched a Hi Fi range to allow the wider
public to benefit from technical advances that are often the privilege of the
professionals.
This technology exists in the service of music, your music. This is why we already
wish you some great moments of listening pleasure with your MELODY.
Thank you for your trust.
Package contents
Besides the manual and the MELODY itself, the box contains:
•Mains cable*;
•Record of measurements, response curve characteristics for your
device, measured by the Nagra laboratory;
•Remote control with 2 AAA dry cells;
•Pair of “Haute Horlogerie“ grade microfiber gloves.
Please contact your Nagra dealer if anything is missing.
* Depending on the country of purchase, the cable supplied by Nagra will feature
a European, Swiss or US plug.
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Nagra – MELODY
Installation
Positioning
In order to protect against the risks of fire and electric shock, please keep this
device away from rain and humidity, use exclusively indoors.
The Nagra MELODY must rest on a stable support. We recommend that you use
the anti vibration support, Nagra VFS, Vibration Free Support, developed by
Nagra consisting of isolated massive aluminum plates using the same silicon base
damping material as the Nagra CD mechanics.
Connection block
1. Ground connector
2. Input block
3. BYPASS input on XLR, this is a special input that will be routed to the
XLR output when the MELODY is OFF, see BYPASS on page 8)
4. Output 1 is on XLR (unbalanced), Output 2 is on RCA
5. DC input on Lemo plug
6. IEC connector
7. Fuse holder
8. Mains switch
In order to obtain optimal performance from the Nagra MELODY, it is preferable
to leave the device switched on for about 15 minutes before use, so that the
internal components can reach their optimum operating temperature.
Note about the Groun connector
This feature is seldom used but often handy to solve specific setup issues. Your
Nagra dealer will assist you on when and how to use this connector.
1. 3.
2. 4. 5. 6. 7. 8.
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Nagra – MELODY
Front panel
1. LED and Modulometer intensity switch, pushed up will increase the
intensity, down will reduce it, there are 7 levels of intensity
2. Nagra Modulometer indicates the output level in dB, reference 0 dB = 1 V
3. STEREO / MONO selector, in MONO position, the LED will light up
4. MUTE, when muted the LED will light up, push down to cancel the mute,
you can also MUTE using the remote control
5. Volume adjustment potentiometer
6. Balance fine adjustment potentiometer
7. Gain selection, standard position 0 dB, upward position +12 dB
8. Line out selection, position 1 XLR, 2 RCA
9. Main selector, OFF is standby* position, input selection A to E
10. IR window and remote LED
*In standby mode the power consumption is less than 10 mW.
Please note that when turned ON, the MELODY will go through a 10 second pre
heating phase. This is in order to optimize the warming up of critical components.
This will allow your MELODY to offer excellent performance for a longer period,
the components being taken care of gently.
Note 1: When moving between the A and E inputs, a 3 second switching delay is
applied to avoid any unwanted noise, this is perfectly normal.
1. 3.
2. 4. 5. 6. 7. 8. 9. 10.
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Nagra – MELODY
Connecting the mains
Place the front panel selector in the OFF
position, noted O. Insert the IEC cable
into the connector of the Nagra MELODY.
You may then push the mains switch into
the I position.
Connecting an optional external power supply
The Nagra Melody can also be powered by an
external source like ACPS compact power
supply or full frame units like the Nagra MPS.
Start by removing the IEC cable from its plug.
The mains switch position is no longer
relevant when an external power supply is
connected.
Please note that the LEMO plug features a red
dot that must be facing upwards for correct
insertion into the power input connector.
Place the front panel selector in the OFF
position. Insert the LEMO plug from the external power supply into the DC
connector as shown above.
You will hear a click, indicating that the plug is securely locked in.
To disconnect the LEMO plug. Hold the fluted section of the plug as shown in the
picture and pull backwards.
Fuse replacement
The fuse holder includes a replacement fuse.
The fuse type is FST 5x20 mm 250 V 200 mA.
Should you need to replace it, only use the same
fuse type.
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Nagra – MELODY
BYPASS
The BYPASS input is a nice feature that allows a second system, home cinema for
instance, to be linked to the main amplifiers connected to your MELODY.
The BYPASS is active when the MELODY is turned OFF, whether it is actually
connected to a power source or not. The BYPASS input will directly be connected
to the XLR output (output 1). All BYPASS XLR pins will be connected to the output
XLR, so if the source is balanced, the connection will be balanced all the way
through.
Here is an example of a setup using the BYPASS input.
Warning
Please note that when in the Bypass mode, the Melody volume control is also
bypassed. The signal is directly routed to the XLR output. Be careful to use a
source with volume control. To avoid any damage to the speakers, adjust the
volume to the minimum on the source, before turning the Melody OFF.
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Nagra – MELODY
Nagra Modulometer
Nagra Modulometer is inherited from the second recorder
developed by Nagra back in 1952, the Nagra II. The
Modulometer is a typical Nagra precision instrument that
displays the necessary information to perform the best
possible recording.
In the case of the MELODY, the Modulometer displays the
output level. 0 dB corresponds to a 1 V rms signal on the
output.
Left channel red needle
Right channel green needle
The Modulometer allows you to make sure you adjust the volume in a consistent
manner with the source and the amplifier you are using.
Gain selection
In order to accommodate a wide range of amplifier/speaker combinations, the
MELODY’s internal gain can be adjusted by a toggle switch on the front panel.
The gain can be changed while the unit is ON and playing. 12 dB
amplification is a 4x multiplication, so be aware of the sound
level when you change gain.
This switch changes the internal gain of the unit; this is not an
additional stage. So the sound quality is not affected by the gain you select.
This switch is placed on the front panel, as we consider you can change it from
one source to another, or depending on the music style you are playing, at any
time. So we do not recommend any particular position for a given set up. Feel
free to experiment.
LED and Modulometer intensity adjustment
This two way toggle switch allows you to adjust the LED and
Modulometer backlight intensity. Pushing the toggle UP will increase
the intensity, pushing it down will lower the intensity all the way to
complete extinction. In total there are 7 different levels.
Balance fine adjustment
The balance is often regarded as not mandatory by many
manufacturers. At Nagra, we believe it is useful to adjust some
minor left/right impairments, typical of LP cutting.
This is the reason the MELODY Balance setting is intended for
fine adjustments that will affect Left/Right balance by just
6 dB. So this is perfectly normal that the volume does not go
completely to the left or right channel.
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Nagra – MELODY
Remote control
The MELODY comes with a new remote control. The RCU III.
Using a “universal remote” with the MELODY
The MELODY responds to IR (Infra Red) signals
coded in Philips RC 5 format. The MELODY is
allocated a system number 16 for
preamplifiers.
Should you wish to program your universal
remote control, please use this table.
Changing remote type
If you wish to use a Nagra RCU
or RCU II remote control, you
need to open the Melody (as per
instructions on Page 11). On the
right hand side of the front
panel, you will find a selector.
0 position is for Philips RC 5 format – for Nagra RCU III remote control
1 to 6 is to use Nagra RCU and RCU II device number, simply turn the selector to
the number you wish the Melody to respond to.
Co e
Function
16
Volume Up
17
Volume Down
26
Balance Right
27
Balance Left
13
Mute
12
Standby
Left
balance
Increase volume
Right balance
Decrease volume
Mute
Operation LED
(will blink when a
button is pressed)
Standby
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