METRUM Jade User manual

Made by ALL Engineering
NOS Differential DAC " Jade
JadeJade
Jade "
User manual
Updated 03-10-2017

Made by ALL Engineering
Introduction
What more can you do a ter launching one o the best dacs and Digital (Pre) Ampli iers available
today? We are aware that our current lagship products Pavane, Adagio and Forte are hard to beat
but at least one idea was not realized yet.
The idea o having similar high end sound like the ADAGIO but in an a ordable version!
Introducing JADE by Metrum Acoustics, a power ul Digital Pre Ampli ier which in sound comes close
to our ADAGIO,
The biggest di erence between the ADAGIO and JADE is the act that the JADE uses two DAC chips
per channel, whereas the ADAGIO uses 4 Chips per channel. Both ADAGIO and JADE use Forward
Correction Technology and are ollowing the working principle o being a Balanced Digital Pre
Ampli ier. Needless to say that we use Non Oversampling techniques. Our own designed and
engineered DAC chips will guarantee a unique listening experience!
The result o this process is an extremely high linearity, right down to -145 dB, which gives the JADE a
realistic 24 bit dynamic range. The JADE is a step orwards as it omits a pre-ampli ier. It is musical,
honors the Non-oversampling principle and simultaneously incorporating the technological progress
that has been made over the years while developing our products.
Remark
The Jade will reach its maximum performance after a three to four weeks
of intensive use!

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IMPORTANT SAFETY INSTRUCTIONS
1. Read Instructions.
. Keep these Instructions.
3. Heed all Warnings.
4. Follow all Instructions.
5. Do not use this apparatus near water.
6. Clean only with a dry cloth.
7. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including ampli iers) that produce heat.
8. Unplug this apparatus during lightning storms or when unused or long periods o time.
9. Re er all servicing to quali ied service personnel. Servicing is required when the apparatus
has been damaged in any way, such as a power-supply cord or plug is damaged, liquid has
been spilled or objects have allen into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been dropped.
10. The Jade pre ampli ier must be placed on a irm, level sur ace where it is not exposed to dripping
or splashing.
11. Be ore making connections to the dac, ensure that the power is o and other components
are in mute or stand-by mode. Make sure all cable terminations are o the highest quality,
ree rom rayed ends, short circuits, or cold solder joints.
1 . THERE ARE NO USER SERVICEABLE PARTS INSIDE THE "Jade" pre ampli ier.
Please contact All Engineering i you have any questions not addressed in this guide.
13. All Engineering cannot be held accountable and/or responsible or any orm o damage or health
issues in licted to you, other people, pets, companies and non-living objects, that are caused by any
orm o usage o the product which is not described in this manual.
14.By actually using this product and turning it on or the irst time, you agree to these terms

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What is in the Box
•The Jade digital pre ampli ier
•Power cord (only Euro or USA based power cords)
•USB cable
•USB stick ( user manual and USB drivers )

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•
Connections
Caution! Please connect your interconnects first before connecting the mains power cable!
•Power requirements: Check i the product is made con orm the power requirements o your
area. On the back side the product is marked or the speci ic mains voltage.
•Optical input: Use an optical (Toslink) cable to use the optical input. The optical input can be
used or sampling rates up to 96 kHz.
•Coaxial input: A 75 Ohm coaxial cable should be used to connect the dac to other digital
equipment. To avoid ground loops both inputs has a galvanic isolation and can handle a
maximum sample rate o 192 kHz.
•AES/EBU digital input: When using the AES /EBU digital input a special 110 Ohms XLR cable
should be used. The AES/EBU inter ace has a galvanic isolation and can handle a maximum
sampling rate o 192 kHz.
•USB input: Use an USB cable to connect the dac to your computer. Only when using a
Windows operating system you should install special drivers. In case o Linux or MAC no
drivers are required. The USB input can handle sampling rates up to 384 kHz.
(For installing drivers or PC, we re er to the user manual o the USB inter ace)
•RCA outputs: Standard interlinks can be used to connect the dac to your ampli ier. The
"Jade" is designed con orm the "Red book standard" so the maximum output will be 2 Volts
RMS . Your (pre)ampli ier should handle this output levels.

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•XLR outputs: Standard XLR line cables should be used to connect the dac to your (pre)
ampli ier. The "Jade" is designed con orm the "Red book standard" so the maximum output
or the XLR output will be 4 Volts RMS. Your (pre)ampli ier should handle this output levels.
•Mains inlet: Use a power cable to a grounded power outlet.
•Remote switch: Depending the type o power ampli ier it is possible to switch it “On” or
“O ” by using one or both o the remote switches. For connection a 3 pole XLR mini
connector can be used and depending the way your power ampli ier should be powered, it
can be wired accordingly. The ollowing connections are available:
A) Common
B) Normally closed when Jade is switched off.
C) Normally open when Jade is switched off.

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Operation
Remark: When the Jade is ully connected and switched to ”on”
the volume knob will turn anti clockwise to the lowest position.
Also the mute unction will be activated the very irst time. To
release the mute unction one o the remote control buttons
should be used. In case o disconnecting the Jade rom the
mains power, this procedure should be repeated!
•Standby position : To reduce power the Dac board will be switched o in stand-by mode.
Just the ront panel is activated to control the system. Power consumption will be reduced
to 0.5 Watts. Any control is possible by using the ront button or remote control.
•Mute function: By switching to one o the digital sources the mute unction will be released
a ter ive seconds. When switching the Jade to “standby mode” muting will be active again.
When the Jade is operational you can use the mute unction only by using the remote
control. In this situation the Jade shows you the selected digital source but also the red
“Standby/ mute” light will lit. By using one o the volume buttons the mute unction is
released.
•Source selection: The digital inputs can be selected by using the only available button at the
ront . When switching the Jade to “On”, the irst channel (AES/EBU) will be selected. When
pushing this button repeatedly, the next “coax ” input will be selected ollowed by “Optical”
and “USB”. The next step is back to “Standby” Note: When moving ast trough the Standby
mode the Jade will not switched o . Only when waiting or a ew seconds the Jade will go
into standby mode when selected.
• Error indication: When no digital data is coming in, the orange “Remote /Error” led above
the remote sensor will lit.
• Remote indication: When using the remote control the Remote/ Error led will lash rapidly.

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Remote control
The remote control is made to control the available standby setting, digital inputs, volume and
muting. Like the front panel the remote will toggle through the entire range of available digital
sources.
Replacing the batteries
If one of the buttons is not activated there is no power consumption at all which leads to a very
long battery life cycle. The two batteries used has the following type: CR1632 3 Volts.
Batteries can be replaced on the following way:
Use a middle sized Philips screw driver to remove the screws from the back of the remote.
By removing the back cover the printed circuit board will be visible.

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By turning the housing upside down the printed circuit board will fall out and the component
side will be visible now. Remark: In case that the pcb is stocked in the housing you can push
one of the buttons to help this procedure.
As shown above push the battery out of its holder by using the back side of a swab. Take the
new battery and push it in the battery holder with the “+” mark on top.
When the new battery is placed, lay back this part of the board where the blue led is situated.
The led will be positioned in front of the recess. Next you can lay down the whole board in the
housing. Next you can place the cover back to its position and tighten the screws.

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Technical specs :
Working principle: Non oversampling digital pre amplifier.
Dual mono, four dacs per channel in differential mode.
Power supply: 75 VA devided over three single toroidial transformers
Power consumption: Standby < 1.5 Watts
Full operation 25 Watts
Power requirement: 110/115V AC or 220/230 V AC 60/50Hz
Inputs: 1x optical Toslink, 1x RCA coax, 1x AES/EBU and 1x USB.
Outputs: 2x RCA gold plated Neutrik © connectors . 2x XLR 3
balanced outputs.
Output voltage: RCA : 3 Volts RMS max output.
XLR: 6 Volts RMS max output.
Frequency response: 1Hz -0.8dB, 20 kHz -1.2 dB 44.1kHz sampling.
1Hz -0.8dB, 65 kHz -3dB 192-384 kHz sampling.
Distortion: 0,006 % THD
Noise: -145 dB related to 2 Volt RMS
Output impedance: RCA 100 Ohms , XLR 100 Ohms
Sampling frequency: Optical : 44.1 - 96 kHz sampling ,16 or 24 bits.
Coaxial: 44.1 - 192 kHz sampling, 16 or 24 bits.
USB: 44.1- 384 kHz sampling , 16 or 24 bits
Dimensions hxwxd: 60 x 290 x 250 mm.
Weight: 3100 gram.
Subject to change without notice.
All Engineering BV
Ambachtsweg 4K
3953BZ Maarsbergen
The Netherlands
Phone: [phone]
Email: [e-mail]
Website: http://www.metrumacoustics.com