Neutral DREi Micro Manuale utente
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DREi Micro
DREi Micro
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NEUTRAL AUDIO wants to thank you for the trust
you have placed in us by purchasing this product
and we hope it will fill you with satisfaction
for a very long time.
You should know that we have made every effort to
be an exclusive and unique audio industry leader,
with our advanced analog technology.
Signed. J. M. Jimenez
DREi Micro
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Important Security Information
oPlease read all the instructions.
oDon‟t use this equipment in humid environments.
oDo not use cleaning fluids. Use a dry or slightly damp cloth.
oDo not install near any heat sources or equipment that generates a lot of heat.
oThere are no components inside that need any adjustment. Do not open the unit, and refer to qualified
service personnel in case of failure to prevent electrical accidents or shocks.
oPlace the equipment on a flat surface with enough space for ventilation
oDo not cover rear ventilation vents.
oBefore connecting the mains power, be sure that you have the proper voltage and the earth is good
quality.
oContact NEUTRAL AUDIO with any questions that may not be contained in this guide.
oAlways disconnect the amplifier before handling connecting cables.
This product has been assembled by hand in Spain, member of the European Community. NEUTRAL AUDIO and
D.R.E.I. Technology are trademarks and may not be used without permission from the owner. The system
D.R.E.I. technology is patented and cannot be used without having been licensed by the owner.
This NEUTRAL AUDIO electric device has been
Certified for use with the integrate D.R.E.I. system
DREi Micro
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INDEX
A brief description, 4
Alternative connection, 10
Conexión recomendada, 8
Connecting the DREi Micro, 6
DEMO Mode, 15
Designed by D.R.E.I. technology, 5
Everything is analog, 6
Front pannel, 11
Guarantee conditions, 17
IR self learning function, 16
Line inputs, 8
Multi-buffers, 6
Output to amplifier, 9
STANDBY Function, 12
SYNERGY CONTROL, 13
Technical features, 18
Turning on the system, 12
DREi Micro
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A brief description
In the first place we are proud that NEUTRAL AUDIO has formed a part of your highly valued musical system.
With this DREi DeIntermodulator, Stereo and Analogue, we have taken a important step forward in the audio
industry. D.R.E.i. stands for Dynamic Reduction of Electronic Interactions and is the essence of this device.
This new and essential product is designed to increase the listening quality of your system audio to levels
well beyond currently normal. Our sound will give you many more hours of warm, friendly enjoyment. If the rest of
your audio system is at an appropriate level, we are convinced that it will sound more neutral, transparent,
detailed, warm and musical than you could ever have imagined.
A preamplifier is the element in the music reproduction system that lets you select the source you want to hear, to
change its output level or volume and connect to the associated amplification. NEUTRAL AUDIO is aware that this
is the step where the musical signal deteriorates mostly due to the extremely low levels with which they work and
the electrical problems inherent in this and therefore should be chosen with great care as overall outcome of the
entire system depends on it. For this reason we developed the Multi Pre amplification technology, which with
several preamps modules in parallel per channel commanded by the DREi module the problems we have talked
about are greatly reduced obtaining a pure sound you will never have heard before. There are several NEUTRAL
AUDIO Multi-preamp models with DREi tech. and they are undoubtedly the best choice if you want to have the
best sound possible, as they have been designed from scratch to eliminate any electronic interaction in the sound
signal.
The DREi Micro is not a preamp. It is designed for those cases in which there may not be a need or desire to
replace the existing preamplifier but where there is a desire to include the DREi technology in the final sound. To
do this it is necessary to insert this external module before the amplifier.
Internally it uses a simplified Multi-preamp technology , using 6 high-precision buffers operating in parallel with no
gain or volume control and controlled by the incorporated module chip "DREi All Inside" with the objective to
neutralize intermodulation, correcting errors in the electronics and increasing the overall performance of the
amplification, filters and speakers. An external SYNERGY control over these buffers provides a new
experience to system optimization in a way that has not heard before.
DREi Micro
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PRO AUDIO, in this sector this device has an important use at indoor and outdoor concerts and nightclubs with
the extraordinary control it exercises over power and amplification allowing higher sound levels without saturating
rooms, producing fewer problems of sound transmission to adjacent rooms and floors and increases the
intelligibility of the music. Less power is needed to achieve the required sound level, therefore facilitating
compliance with acoustic regulations, increasing acoustic efficiency and extending the life of the power equipment
and speakers thus increasing their profitability. In Recording studios, part of the properties our technology confers
to is reflected in the sound quality of the Master.
The audio tone is not modified, it keeps the characteristic "sound" of your equipment but at a much higher level.
The main function is as described but has other interesting features:
You can select from 5 different SYNERGY positions using the central button or any brand of
remote control (RC5), thanks to its code learning function (including power on / off)
Push button Standby/Bypass. In standby, or if disconnected from the mains, it will redirect the input
to the output, unchanged.
It remembers the last Synergy position used.
"DEMO" mode changes between the different Synergy positions starting with bypass.
Voltage change on the base of the chassis (115VAC/230VAC)
LED lights indicate the DREI is on and the selected Synergy.
The RCA/XLR version is also an active adapter between the RCA input and the Balanced output.
Designed by D.R.E.I. technology
The incorporation of D.R.E.i. technology in all NEUTRAL AUDIO analogue products makes them exceptional
pioneers.
For more information please visit our website. http://www.neutralaudio.com/drei.htm
DREi Micro
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Multi-buffers
Similar to a prism that separates white light in to different colours, D.R.E.i. technology separates various blocks of
the musical signal and redirects them into 6 high precision buffers working in parallel. Each of these buffers is
directed by the “D.R.E.i. ALL Inside" chip
Everything is analogue
One of the fundamental aspects of these systems is that they don‟t use any digital device with the audio signal.
Everything is done using analogue technology, there is no digitization of audio in any part of the process which
respects the full musical content.
The audio signal does not run through any internal cables and takes a greatly shortened route across a single
high quality, gold plated circuit board.
Connecting the DREi Micro
CAUTION. Before connecting, turn off the associated amplification and disconnect the plug from the outlet.
Make sure the voltage of the device matches that of your power supply. For safety, the earth of your electrical
system must work properly, otherwise unwanted noise and interference may invade the audio system.
DREi Micro
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You can select the correct voltage for your installation(depending model) with the switch that can be found on the
bottom of the DREI Micro. DO NOT CONNECT TO THE MAINS until you have verified this setting. Standard
delivery is set to 230VAC. To switch it to 115VAC you only have to slide the red lever in the center until you see
the 115VAC mark. Use the supplied cable and a good quality plug which must be earthed.
Please note that when the unit is off it creates a "bypass" of the input signal which will be available at the
output "as is", connecting RCA in RCA and XLR in XLR (not in the RCA/XLR model).
When connecting the unit the led STB (Standby) light will flash until all the internal modules are
operational (Approx. 2 sec.) after which the LED "DREi" will turn on and the system will start to work.
We strongly recommend you to use good quality, clean, dry, rust free interconnecting cables. Periodically
check the status of these connections. Our "CABLE DREi" are highly suitable to connect to the rest
of the audio system, as the DREi process is cumulative.
Our connections are of very high quality and gold plated. We recommend periodic application of a specific
product, (ask the dealer), to the connectors to prevent rust and loss of contact.
Balanced connections of input and output XLR connectors are the standard in:
The pin 1 = Ground The pin 2 = Hot The pin 3 = Cold
DREi Micro
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Line inputs
Depending on the version, the unit might have RCA (not balanced) inputs and outputs or XLR (balanced)
connectors or the RCA/XLR version which can be used as an active adaptor with RCA inputs and XLR outputs.
We recommend connecting the left channel to the "LEFT" (white) input and the right channel to the "RIGHT" (red)
input, but this is not obligatory.
It is normal for the balanced input signal (XLR) to have more volume than the RCA and this doesn‟t imply a
malfunction of the unit. In the same way the XLR output also has a higher volume level (+6 db.) than the RCA.
Recommended connection
The recommended and usual way to connect the DREi Micro in your current stereo system is as shown in the
illustration above.
The DREi Micro is inserted between the preamplifier and amplifier. In this mode with a single appliance, the DREi
Micro serves all the sources used.
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