Ultra-DI DI20 - Audio/video converter BEHRINGER - Free user manual and instructions

Product type	Audio/Video Converter (DI Box)
Model	Ultra-DI DI20
Brand	Behringer
Channels	2 (Stereo)
Inputs	2× 6.3 mm jack (balanced/unbalanced)
Outputs	2× XLR (balanced)
Frequency response	20 Hz – 20 kHz
Signal-to-noise ratio	> 100 dB
Total harmonic distortion	< 0.01 %
Ground lift switch	Yes
Pad (attenuation)	-20 dB
Mono/Stereo switch	Yes
Power supply	9 V battery or phantom power (48 V)
Battery life	approx. 1000 hours (alkaline)
Housing material	Steel sheet, black powder-coated
Dimensions (W×H×D)	125 × 70 × 120 mm
Weight	0.5 kg
Cleaning	Wipe with a dry, lint-free cloth. Do not use liquids.
Safety instructions	Do not operate in humid environments. Do not insert objects into openings.
Spare parts / Repair	No user-serviceable parts. Repairs only by qualified personnel.

Frequently Asked Questions - Ultra-DI DI20 BEHRINGER

How do I connect the Ultra-DI DI20?

Connect the jack inputs to your signal source (e.g., mixer, instrument). Connect the XLR outputs to a mixing console or interface. Ensure correct grounding (Ground Lift) and Pad setting.

What does the ground lift switch do?

The Ground Lift disconnects the ground between input and output to avoid ground loops. If you hear hum, switch it on.

How is the DI20 powered?

The DI20 can be powered either by a 9 V battery (in the compartment under the device) or via phantom power (48 V) from a mixing console.

What is the mono/stereo switch?

The Mono/Stereo switch determines whether both input signals are mixed to both outputs (Mono) or each channel remains separate (Stereo).

What is the -20 dB pad used for?

The Pad attenuates the input signal by 20 dB to prevent overload with loud sources (e.g., guitars, keyboards).

Can I use the DI20 with a guitar?

Yes, connect the guitar to one of the jack inputs. Use the Pad if the signal is too strong.

Why do I have no signal?

Check: 1. Power supply (battery or phantom power). 2. Cables for correct connection. 3. Ground Lift and Pad settings. 4. Mono/Stereo mode.

How do I clean the DI20?

Use a dry, lint-free cloth. Do not use cleaning agents or liquids as they could enter the housing.

Is the DI20 suitable for stage use?

Yes, the robust steel housing and high-quality connectors make it ideal for live use.

Which battery is compatible?

A standard 9 V block battery (alkaline or rechargeable). Ensure correct polarity.

USER MANUAL Ultra-DI DI20 BEHRINGER

1. Welcome to the Behringer Family!

On stage as well as in studios, it is sometimes advantageous to connect certain sound sources directly to the mixing console.

Since many instruments (keyboards, for example) don't have balanced outputs they require a DI-box. Sometimes, even guitars can't be directly connected to mixing consoles because their impedance is too high.

By using a DI-box, you can directly tap into a high-impedance, unbalanced signal—for example, a signal between a guitar and a guitar amplifier. From this point, you can feed this signal directly to a mixing console.

There are active and passive DI-boxes. A passive DI-box is more affordable, but its performance is dependent on the impedance of the device to which it is connected. When the impedance on the mixing console's end changes, so does the impedance at the input of the DI-box. Such DI-boxes only function properly when the connected impedance values are strictly specified (high at the input, low at the output). Active DI-boxes are not affected by these impedance considerations. The input impedance of the DI20 is extremely high, and it absolutely does not influence the signal flow through the DI-box. The output impedance is balanced and always very low, whereby the signal is far less prone to being affected by noise.

To prevent damaging your loudspeakers, first connect the DI-box and then hook up the respective channel. The same goes for alternating between battery and phantom power operating modes.

2. Controls

Fig. 2.1: Controls of the D120

1 CH. 1 IN input is used to connect unbalanced as well as balanced signal sources to channel 1.
2 CH.1 OUT is the balanced output at mic level for channel 1.
3 CH.2 IN input is used to connect unbalanced as well as balanced signal sources to channel 2. In Link mode (see 6) this connector functions as output and sends the signal directly from channel 1.
4 CH. 2 OUT is the balanced output at mic level for channel 2. In Link Mode (see 6) this connector sends the signal directly from channel 1.

5 The ATTENUATION dampening switch considerably increases the useful operating range of the DI20 from low signal levels of a high-impedence microphone or a guitar, all the way to the speaker connectors of a guitar amplifier (solid state). You can select between 20 and 40 dB worth of attenuation.
You should only use the ATTENUATION switch when your DI20 rather than the mixing console preamp begins distorting. Otherwise refrain from using this function to avoid excessive dampening.
6 The MODE switch lets you select the operating modes of the DI20. In the 2-CH mode, two independent signals can be connected to channels 1 and 2 respectively. In LINK mode the DI-box functions as a splitter: One signal can be fed to the channel 1 input and split into two balanced signals (at outputs 1 and 2) and an unbalanced signal at CH.1 OUT. The un-balanced signal can, for example, be connected to an additional amplifier.
When connecting a tube amplifier to the input of the DI20, please keep in mind that an appropriate load resistance (e.g. a loudspeaker) must be connected to the CH.1 OUT (LINK MODE) connector.
7 The BATTERY switch activates the battery powered mode. Set the battery operating mode to OFF when your DI20 is connected to phantom power. While setting it to OFF, brief whistling noise may occur. This is completely normal and needs no further attention. However, you should not change the battery switch when you have an amp connected. For battery operation, you'll only need a commercial 9 V battery of the 6LR61 type.

8

By using the GROUND switch, you can interrupt (LIFT) the grounding between the input and output. Depending on how other devices connected to your DI-box are grounded, ground loops can be eliminated.

◇

◇ Never connect pin 2 or pin 3 to pin 1! Never remove the screen protection on pin 1. Otherwise, you won't be able to run the DI20 on phantom power (for example, phantom power from a mixing console).

Battery compartment

To access the battery compartment, loosen the screw on the rear.

3. Connection Options 3.1 Connecting a (bass) guitar

Fig. 3.1: Guitar DI-box guitar amp/mixing console

This illustration shows the standard application of a DI-box. The signal is fed unbalanced to a guitar amp and balanced to a mixing console (LINK mode). This application has advantages when used with bass guitars, because very few microphones are able to pick up low frequencies at high levels.

3.2 Converting output signals of a keyboard, DJ-mixer, etc.

Fig. 3.2: DJ-mixer DJ-box mixing console

This configuration is recommended when using a DJ-mixer or another signal source, which sends an unbalanced line level signal. In addition, if you need a separate monitor signal, the line level signal can be sent to another amplifier.

4. Audio Connections

The Behringer ULTRA-DI DI20 features electronically servo-balanced standard inputs and outputs. The circuit design is equipped with automatic hum suppression for balanced signals and operates problem-free even at high levels. Externally induced mains hum is thus efficiently suppressed. The servo function automatically detects unbalanced pin connections and changes the nominal level internally by 6 dB so that there is no difference in level between input and output signals.

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Fig. 4.1: XLR connectors

Fig. 4.2: 1/4 " TS connector

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Fig. 4.3: 1/4'' TRS connector

5. Multilingual Documentation

The following versions of this user's manual can be downloaded free of charge at http://behringer.com: German, French, Spanish, Italian, Dutch, Finnish, Swedish, Danish, Portuguese and Greek.

EN Safety Instruction

1. Read these instructions.
2. Keep these instructions.
3. Heed all warnings.
4. Follow all instructions.
5. Do not use this apparatus near water.

6. Clean only with dry cloth.

7. Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.

8. Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.

9. Use only attachments/accessories specified by the manufacturer.

1. Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tip-over.

1. Correct disposal of this product: This symbol indicates that this product must not be disposed of with household waste, according to the WEEE Directive (2012/19/EU) and your national law. This product should be taken to a collection center licensed for the recycling of waste electrical and electronic equipment (EEE). The mishandling of this type of waste could have a possible negative impact on the environment and human health due to potentially hazardous substances that are generally associated with EEE. At the same time, your cooperation in the correct disposal of this product will contribute to the efficient use of natural resources. For more information about where you can take your waste equipment for recycling, please contact your local city office, or your household waste collection service.

2. Do not install in a confined space, such as a book case or similar unit.

3. Do not place naked flame sources, such as lighted candles, on the apparatus.

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Fig. 4.1: Conectores XLR

Fig. 4.2: Jack estéreo de 6,3 mm

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Fig. 4.3: Jack mono de 6,3 mm

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.
Abb. 4.3: 6,3 mm-Stereoklinkenstecker

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Fig. 4.2: Ficha jack mono de 6,3 mm

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Fig. 4.3: Ficha jack stéreo de 6,3 mm

Balanced use with XLR connectors

input

output

1 = ground/shield

2 = hot (+ve)

3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Fig. 4.1: XLR connectors

Fig. 4.2: 1/4 " TS connector

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Fig. 4.3: 1/4'' TRS connector

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Afb. 4.1: XLR connectoren

Afb. 4.2: ¼" TS connectoren

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.
Afb. 4.3: ¼" TRS connectoren

5. Meertalige documentatie

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Balanced 1/4" TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.
Bild 4.3: ¼" TRS kontakter

Balanced use with XLR connectors

input

output

1 = ground/shield
2 = hot (+ve)
3 = cold (-ve)

For unbalanced use, pin 1 and pin 3 have to be bridged

Balanced 1/4 " TRS connector

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Frequency response 10 Hz to 70 kHz (-3 dB)

Noise 100 dBu

Distortion < 0.014% (1 kHz, 0 dBu in)

Input resistance >250 kΩ

Connection impedance >600 Ω

Input 1⁄4" mono jack

Output XLR balanced

Max. input level +12/+32/+52 dBu

Phantom power 18 V DC to 48 V DC

Battery power 9 V 6LR91

Dimensions approx. 6 x 5 x 2 3/8"approx. 150 x 130 x 60 mm

Weight approx. 240 g

Behringer is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice.

Specifications and appearance may therefore differ from those listed or shown.

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Music Tribe accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph, or statement contained herein. Technical specifications, appearances and other information are subject to change without notice. All trademarks are the property of their respective owners. Midas, Klark Teknik, Lab Gruppen, Lake, Tannoy, Turbosound, TC Electronic, TC Helicon, Behringer, Bugera, Aston Microphones and Coolaudio are trademarks or registered trademarks of Music Tribe Global Brands Ltd. © Music Tribe Global Brands Ltd. 2023 All rights reserved.

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