Devine DI-50 User manual

DI-50
active DI box
User manual
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:

Introduction
Thank you for purchasing this Devine DI-50 active DI box. Before you unpack all the received items carefully
read this manual to become familiar with the functions of this product. Also check the contents of the box to
make sure all necessary parts are included. If the DI-50 fails to operate properly or if you have any problems
while using it disconnect it from the signal chain and contact your local dealer for more information and/or
help.
Box contents:
- Devine DI-50 DI box
- 9 V battery
Unit and accessory inspection
- If you suspect that your device is broken or damaged contact your local dealer or a certified technician to
inspect the unit and do not install a battery or apply phantom power to the device.
Note: Illustrations shown in this manual may vary from the actual product.
Contact:
Devine pro audio products
Verrijn Stuartweg 18
4462 GE Goes
The Netherlands
Please do not send any products directly to this address. If you wish to return a product for a refund or
repair, please contact your local dealer for an R A (Return aterial Authorisation)
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:

Safety instructions
Every person involved with the installation operation and maintenance of this device must:
- Be qualified
- Follow the instructions in this manual
- Make sure there is no damage to the device caused by transport. If the device seems damaged from the
outside do not use it and contact your dealer for more information.
- Make sure the device is in perfect condition and safe to operate. Follow the instructions and adhere to the
warning notes in this user manual.
- Damage caused by improper use or modifications to the device are not covered by the warranty.
- This device does not have any user-serviceable parts inside. This device must be serviced by qualified
technicians.
Important notes regarding ealt and safety:
- Never remove any warning or informative labels from the unit.
- Never leave cables lying around.
- Do not open the device and do not modify any hardware or software.
- Do not power the inputs of the fixture with a signal greater than required to work at full performance.
- Use this device indoors only avoid contact with water moisture and other liquids. Do not place items filled
with liquids on top of the unit.
- Avoid nearby flames or heat sources do not place this device near flammable liquids gas or flammable
items.
- Always disconnect the device when it is not in use for an extended period or time when servicing is
needed or when the device needs cleaning.
- Never pull the cable to remove a connector from its socket as this could lead to damage.
- Never use other types of cables other than those specified in this manual. Do not use defective or
malfunctioning cables. Contact your dealer if the included or required cables do not work properly with this
device.
- If the device has been exposed to considerable temperature changes (for example transport from outdoors
to indoors) do not activate the device until it has reached room temperature as moisture may have built up
inside the unit which could cause a short-circuit and/or electric shocks.
Guidelines and types of use:
- This device is intended for use by professionals on stage in theaters clubs and in other entertainment
venues.
- This device is not suitable for use by children and must always be operated by an adult.
- Only use the device in a suitable environment where it cannot cause any damage. Do not use the product
in damp or dusty environments or where permanent damage may occur such as:
- indoor swimming pools where chlorine is used
- beaches where sand and salt are present
- outdoors
- indoor areas where intense heat sources are present or where the temperature exceeds levels that
are comfortable for humans.
- Avoid impacts and collisions during use and transport. Do not transport the device while in use. Avoid brute
force during the installation and operation of this device.
- Familiarise yourself with the functions of the device before use. Do not allow operation of the device by
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:
WARNING!
Always keep t is device away from moisture and rain! Hazardous electrical s ocks may occur!

unskilled or unqualified people.
- Use of the device in ways other than described in this user manual may cause damage and/or injury.
Devine cannot be held responsible for any damage or injury caused by improper use.
Storage and transport:
- This device is intended for mobile use. Always transport the device in the original packaging or in a flight
case with a proper fitted foam inlay.
- This device is not intended for permanent (24/7) use. Regular breaks in operation will ensure the expected
lifespan of this device remains unchanged. Disconnect the device when not in use.
- If you do not plan to use the unit for an extended period of time disconnect it and store it in a dust-free
environment.
- Do not expose the device to extreme temperature differences.
Housing:
- Inspect the housing of the device frequently and always before use. Severe dents cracks and missing
screws should be avoided at all costs. Do not use the device when the housing is not in optimal condition.
Contact your dealer or a skilled technician when in doubt about the state of the device.
- Check the fixture and screws for corrosion. Corrosion should not be present on the fixture. Contact your
dealer or a skilled technician if corrosion is found on the fixture.
- Every power or signal chassis/connector should be attached securely and tightly. Do not use the device
when connectors are loose.
- Avoid the buildup of dust and dirt. Clean the exterior of the fixture once a month with a dry or damp cloth. If
you use the device intensively increase cleaning frequency.
Symbol clarification:
WEEE: Dispose of this product properly. This product is part of the WEEE directive – the
Waste Electrical and Electronic Equipment directive. The requirements stated in this directive
apply to all manufacturers and producers of electronic equipment in the EU.
Do not dispose of this product together with regular household trash. Contact your local
government for more information about proper disposal and recycling of electronic products in
your region. By recycling this product properly after use we can work together to enjoy these
products and protect our environment from pollution.
CE: The CE mark indicates that the product complies with applicable European directives and
regulations.
Indoor use only: This device is designed to be used indoors only. The maximum ambient
temperature should not exceed 40 degrees Celsius (104 degrees Fahrenheit).
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:

Battery precautions and warnings
The DI-50 DI box comes with a 9 V battery. Due to the hazardous substances of a battery precautions must
be met in order to use this battery and the product in which it is installed to safely.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type of battery.
Do not expose batteries to excessive heat such as sunshine fire and the like.
Do not leave batteries in an extremely high-temperature environment as this may cause explosions or
leakage of flammable liquids or gas.
Do not burn batteries do not place batteries in a hot oven and do not crush or cut batteries as this may
cause explosions.
Do not subject batteries to extremely low air pressure (high altitudes) as this may cause explosions or
leakage of flammable liquids or gas.
When equipment is not used for an extended period of time (e.g. a few months) batteries should be
removed.
Instantly remove empty batteries from the equipment.
Do not store loose batteries or carry them in your pocket or purse. Contact with metal objects like coins and
keys etc. may cause them to leak rupture or short-circuit.
Keep batteries out of reach of children.
Recycling:
Do not dispose of batteries in general household waste. Batteries can contain substances that may harm the
environment. If they are properly recycled used batteries are a valuable source of reusable materials.
Contact your local government for information on battery disposal.
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:

Overview and use of t e device
1. attenuation switch (-0 dB -20 dB)
2. input (6.35 mm unbalanced TS mono jack)
3. input (3p unbalanced XLR)
4. link output (6.35 mm unbalanced TS mono jack)
5. power LED indicator
6. power on/off switch
7. ground lift switch
8. output (3p balanced XLR)
9. battery cover
Use of t e device
The Devine DI-50 is an active DI box used to transform unbalanced high impedance audio signals to
balanced audio signals. This makes the signal more suitable to travel long distances to mixing consoles or
audio interfaces. By doing this the chance of audio disturbance and unwanted noise is decreased
significantly.
The Devine DI-50 is a battery powered device and requires a 9V battery (like the one which is included in
delivery) or phantom power to operate properly. Because of the battery powered and phantom powered
design no additional bulky power adapters are needed on stage or where you wish to use it. Furthermore
this type of powered device is more likely to keep the volume and quality of the audio signal on an optimal
level compared to DI boxes which are equipped with passive circuitry.
The DI-50 will work on a standard 9V battery and will work for several hours. Once the electronics of the DI-
50 notice that phantom power from a mixer or audio interface is present the 9V circuitry will be disconnected
and the device will automatically switch to phantom powered operating mode. Of course the device can also
be used without battery installed if it will only be used in combination with a device capable of supplying
phantom power.
The phantom power voltage may have a value between +18V to +48 V DC in order for the DI-50 to work
properly. If the correct phantom power voltage is present the Power LED will be lit continuously.
The lifespan of a battery installed in the DI-50 may vary as the battery characteristics are different for each
manufacturer. The included battery is only meant for testing purposes (testing the product upon arrival
practicing) and should be replaced for a new one when using the device for critical applications such as
recording or live performance.
The DI-50 is equipped with a 6.35 mm TS jack input and an unbalanced 3-pin XLR input suitable for devices
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:
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such as electric guitars (mono) keyboard signals etc.
A parallel output is available to transfer the signal to other equipment. For example if you wish to connect a
keyboard to a PA system but you also wish to use a stage monitor the link output could be sent directly to a
stage monitor for the keyboard player.
The various signal sources such as guitars or keyboards also feature other signal impedances. To
compensate for the different input impedances an attenuator is provided which can decrease the level of the
incoming signal. Choose between an attenuation of –0 dB or -20 dB.
When connecting the balanced output to your mixing console audio interface or other processing equipment
you will almost instantly see which attenuation works best.
Devine recommends to start with -20 dB attenuation. This way you will start with the least powerful volume
level possible and you can see on your mixing console if the signal is strong enough. If not you can switch
the attenuation to -0 dB and see if the signal is strong enough but not overpowering the inputs on your
processing equipment.
Some equipment such as the power adapters from keyboards link-connected amplifiers or the pickups of
electric guitars can cause unwanted noise and hums. To eliminate these problems a ground lift is available.
The ground lift disconnects the connection between the ground of the balanced signal the housing and the
ground of the incoming and outgoing input/link signals. If no audio-problems are present the ground
connection does not need to be lifted.
The balanced output sends out a balanced microphone level signal suitable for connecting to the
microphone inputs of a PA-mixer audio interface or other equipment provided with microphone preamp
circuits.
To install the included 9 V battery or a new battery once the battery has been used up untighten the silver
coloured knob which is attached to the battery compartment. By loosening this knob the battery cover will
open and grant you access to the battery itself. When installing a new battery the battery needs to be
connected to the contacts which are presented within. Only when a noticable 'click' can be heard the
contacts of the battery are in place. The battery contacts and the cable contacts can only be connected in
one particular way.
If the battery is connected it can be slided into the compartment. If it is in place the compartment can be
closed and tightened by turning the knob clockwise.
Practical extra’s
The housing of the DI-50 is useful in different ways. For example the shape of the housing makes it possible
to stack several units on top of each other thus saving valuable studio or stage space.
In addition to this the lifted product design creates space underneath the DI box for cables. This way cables
pulled to and from the DI box as well as other types of cable can be positioned underneath it thus creating a
neat appearance in situations where this is required.
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:

DI box troubles ooting
If you encounter any problems with your DI box consult this troubleshooting section for possible solutions. If
this troubleshooting section does not solve your problem contact your dealer for more information and help.
This troubleshooting section contains the most frequently occurring problems and is not a complete
collection of possible faults defects and solutions. This troubleshooting section applies to DI boxes. It is
possible that the problems causes and solutions described below do not apply to your situation as product
details may vary from product to product.
Problem Possible Cause Solution
Incoming sound level on my
mixer/interface is too low
Source signal output too low Increase source signal output level
Attenuation too high Decrease attenuation to -0 dB
Incoming sound level on my
mixer/interface is too high
Source signal output too high Decrease source signal output
level
Attenuation too low Increase attenuation to -20 dB
Strange buzzing or humming noise
present in the sound
Ground problem Activate ground lift switch
No sound entering my mixer /
interface at all
Defective XLR cable Replace XLR cable and check
again if there is still no signal
present
Defective instrument cable Replace instrument cable and
check again if there is still no
signal present
Sound source does not produce
sound
Check if the sound source is
producing any sound at all by
connecting a speaker or
headphones
DI Box power indicator LED will
not light up when power switch has
been turned on
Battery empty Replace battery with a new one
No battery installed Install new battery
Phantom power not activated on
mixing console
Activate the phantom power button
on your mixing console to power
the DI-box without using a battery
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials:

Tec nical specifications
- active DI box
- powered by a 9 V battery or + 18-48 V phantom power from an audio interface or mixer
- sturdy and robust metal housing
- rubber corners used for protection and stacking
- floor clearance to run cables properly underneath the DI box
- low-profile design
- transforms unbalanced high-impedance audio signals to microphone level balanced audio signals
- 6.35 mm TS jack unbalanced input
- 6.35 mm TS jack unbalanced link output (parallel)
- unbalanced 3-pin XLR input
- balanced 3-pin XLR output
- input impedance: > 250 kilohms
- load impedance: > 600 ohms
- built-in attenuator switch: -0 dB -20 dB
- built-in ground lift switch
- S/N ratio: >105 dB
- T.H.D.+N @ 1 kHz (0 dB): < 0.005%
- frequency response: 10 Hz – 40 kHz
- dimensions: 142 x 133 x 52 mm
- ta max.: 40 degrees Celsius
Included accessories:
- 9 V battery (for testing purposes)
Wiring and impedance
6.35 mm TS jack input:
- Tip: Hot (+)
- Sleeve: Ground
Pad setting: 0 dB (1 megohms) 20 dB (47 kilohms)
3-pin XLR unbalanced input:
- Pin 2: Hot (+)
- Pin 1+3: Ground
6.35 mm TS jack link (connected to input):
- Tip: Hot (+)
- Sleeve: Ground
3-pin XLR balanced output:
- Pin 2: Hot (+)
- Pin 3: Cold (-)
- Pin 1: Ground
Ground lift:
By switching to ‘lift’ the ground connection to the pin 1 balanced output is removed and thus only present on
the unbalanced connected devices.
All information and illustrations shown in this user manual are subject to change without further notice.
User manual version: 1.0 Creation date + author initials: 26-01-2016 RV Revision date + author initials: