Behringer ULTRA-DI DI100 User manual

www.behringer.com
Version 1.2 February 2001
Users Manual
ENGLISH
ULTRA-DI® DI100
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Welcome to BEHRINGER!
Thank you very much for expressing your confidence in BEH INGE products by purchasing the ULT A-DI.
DI stands for Direct Injection. On stage or in the studio there are sources you want to connect to your mixer that are
not equipped with a suitable connection. Keyboards seldom have properly balanced outputs. Guitars cannot be
directly plugged into a mixer and placing a microphone in front of a backline is not always ideal. A microphone picks
up ambient noise such as other instruments. Low frequencies (such as from a bass guitar) are especially difficult for
a microphone to handle.
A DI-box makes it possible to tap a signal from a high impedance unbalanced line, for instance the signal from a
guitar to a guitar amplifier, and Inject it Directly into the mixers input without having to use a microphone. But thats not
all, there are lots of situations where you want to inject the signal coming from an unbalanced source directly into your
mixer and preferably balanced, too. That is the application of a Direct Injection box.
Impedance is the electrical frequency dependent resistance of a device combined with its phase response. It is a
literally complex matter. That is why a good DI-box is distinguishable from a bad one. As with a power amplifier and
speakers the impedance to a device determines the performance. With a good power amplifier the load impedance
only affects the maximum power output. Whereas on some other devices the impedance governs other properties as
well. With a transformer as used in a DI-box, the connected impedances (in and out) influence the bandwidth,
frequency response, distortion, etc.
There are two basic types of DI-boxes, passive and active. Both active and passive DI boxes are designed to be
connected to the consoles microphone input. A passive DI box has the advantage of being slightly lower in cost (less
electronics, no battery facility) but their performance is highly dependent on the connected impedances. When the
impedance on the mixer side of a passive DI-box changes, the impedance on the input changes also. Not only that,
the frequency response changes, too. A passive DI-box only works well at specified connected impedances, high in
and low out, which means that they only work in a standard application.
Active DI-boxes dont have such restrictions. The signal coming from the input is buffered with an amplifier. The input
impedance of the ULT A-DI is ultra-high so it doesnt affect the signal throughput at all. The output impedance of the
ULT A-DI is balanced and very low so that it is much less susceptible to picking up hum and noise. This way, the
impedance for the signal source is independent from the impedance of the used mixer and vice versa. There is no
sound alteration. The transformer used is BEH INGE ´s renowned OT-1 witch guarantees distortion free, clean
sound and a flat frequency response. Furthermore the BEH INGE ULT A-DI can be powered by your consoles
phantom power or by battery and switches automatically between these two.
+To avoid switching noise, you should mute the desk channel before activating the DI100.
Same applies when switching between battery and phantom power and vice versa.
The design of the DI100 includes four sturdy rubber feet which protect the unit (even during a unplanned drop) and
allow cables to run underneath. It also provides literally a ground lift so that the unit can be stacked on top of another
unit and other equipment without creating ground loops.
1. CONTROL ELEMENTS
Fig 1.1: Front & Rear DI100
1With the ON/OFF switch you can switch the battery power on and off to preserve battery life. Switched off the
ULT A-DI will still work on phantom power. Switched on, the ULT A-DI will automatically switch between
battery and phantom power. When the DI100 is operating on battery power the ON/OFF LED will flash once
every few seconds, when operating on phantom power the LED will light up continuously.
2INPUT. Connect the source to this 1/4" jack to receive the signal.
3To provide maximum flexibility the ULT A-DI is also fitted with an unbalanced XL input to connect the source.
4LINK OUT. This is the unbalanced parallel output of the ULT A-DI. Connect this to the input of the backline or
monitor amplifier.
+The 1 4" jacks (input and link out) and the Input XLR are wired parallel, so any connection as input will give
the same performance.
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5The -20 dB attenuation switches greatly increase the operating range of the ULT A-DI. From the low-level
signals of a high impedance microphone or guitar to the hot speaker terminals of a P. A. amplifier. Depressing
both will give 40 dB attenuation.
+Only use the -20 dB switches if you are sure the ULTRA-DI is clipping (overloading) and not your mic pre-
amp. Always use as little attenuation as possible to get the best possible signal-to-noise ratio.
6OUTPUT. This is the balanced microphone level output of the ULT A-DI. Connection to the microphone input
should be made with a standard high quality balanced cable.
+Never connect pin 2 or 3 to pin 1 and never disconnect the shield from pin 1, or the unit will not work on
phantom power.
7Use the GROUND LIFT switch to either connect the ground of input and output or keep them completely
separate. Depending on the grounding of the connected devices linking or disconnecting will reduce hum or
prevent ground loops. GROUND LIFT ON means no interconnection.
8Battery compartment. Loosen the screw to open the compartment and to replace the 9 V battery. When the
ULT A-DI is switched on battery power the LED blinks, when it stops blinking it is time to change the battery.
2. DI100 CONFIGURATIONS
The next section will show several different ways the ULT A-DI can be hooked up.
2.1 Tapping signal from he (Bass)gui ar
Fig 2.1: G itar ß DI ß G itar Amp/Mixer
This figure shows the standard application of any direct injection box. The signal to the amplifier is unaffected, it is just
tapped off to be routed to the microphone input of the mixer. Especially bass guitars benefit from this application. It is
difficult to find a microphone which handles high level low frequencies well and with a linear frequency response.
Using the ULT A-DI will give you clean and crisp sound. Connect the ULT A-DI after any effects devices so that their
effect will be heard over the P.A.-system or on the recording. If the mixer provides phantom power between 20 V and
52 V, the internal battery of the DI100 will automatically be detached. You should chose this possibility whenever
possible to save battery power.
2.2 Conver ing he ou pu of a Keyboard / DJ-mixer / Headphone plug
Fig 2.2: DJ-mixer ß 2 x DI ß Mixer
This configuration can be used with a keyboard, DJ-mixer, headphone output, drum kit or any (stereo or mono) line
source. In all cases where you want to run long lines, for instance to the FOH (Front Of House) desk. In most cases
the best setting is achieved by depressing one of the -20 dB pad buttons to avoid overloading the FOH desk input. The
signal can be linked through to another amplifier, if the keyboard player / DJ / etc. wants to have a monitor connected
independent of the foldback mix. The ULT A-DI acts as both a ground isolator and an unbalanced to balanced
converter.
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3. SPECIFICATIONS
Frequency esponse 10 Hz to 93 kHz
Noise Level -110 dBu
THD+N @ 1 kHz / 0 dBu < 0,005 %
Input Impedance >250 kOhm
Load Impedance >600 Ohm
Inputs 1/4 jack unbal. In/ Link Out
XL unbalanced In
Output XL balanced Out
Maximum Input level +10/+30/+50 dBu
Power supply
Phantom power 18 V DC to 48 V DC
Battery 9 V blockcell 6L 91
Dimensions 150 mm x 130 mm x 60 mm
Weight ca. 650 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 e isting products without prior notice. Specifications and
appearance may differ from those listed or shown.
2.3 Conver ing a microphone from high impedance unbalanced o low impedance balanced
Sometimes all thats available (especially when all other mics are in use) is a unbalanced high impedance micro-
phone with an unbalanced jack. With the ULT A-DI long cable runs to the console can be established without fear of
picking up noise and hum. Just plug the jack into the input and connect the output to the consoles mic in.
2.4 Tapping a signal from a power amplifier ou pu
When no line out is available it is possible to connect an amplifier output directly to the DI100 (for example, recording
direct from a guitar amplifier, TV-speaker, etc). It is possible to connect the output, i.e an extra speaker output, of up to
3000 Watts to the ULT A-DI without fear of overloading. Pay attention to the two -20 dB buttons on the ULT A-DI! Both
must be depressed if an amplifier output is connected to the DI100 input.
Fig 2.3: Connection to an amplifier o tp t
+Always make sure the GROUND LIFT is on (no ground link) when connecting to speaker terminals. This
prevents accidental short-circuiting of the amplifier output. Also make sure the Tip of the input jack is
connected to the red terminal and that the metal housing of the DI100 has no contact with other equipment.
4. WARRANTY
§ 1 WARRANTY CARD/ONLINE REGISTRATION
To be protected by the extended warranty, the buyer must complete and return the enclosed
warranty card within 14 days of the date of purchase to BEHRIN ER Spezielle Studiotechnik
mbH, in accordance with the conditions stipulated in § 3. Failure to return the card in due time
(date as per postmark) will void any extended warranty claims.
Based on the conditions herein, the buyer may also choose to use the online registration option
via the Internet (www.behringer.com or www.behringer.de).
§ 2 WARRANTY
1. BEHRIN ER (BEHRIN ER Spezielle Studiotechnik mbH including all BEHRIN ER subsidi-
aries listed on the enclosed page, except BEHRIN ER Japan) warrants the mechanical and
electronic components of this product to be free of defects in material and workmanship for a
period of one (1) year from the original date of purchase, in accordance with the warranty regula-
tions described below. If the product shows any defects within the specified warranty period that
are not due to normal wear and tear and/or improper handling by the user, BEHRIN ER shall, at
its sole discretion, either repair or replace the product.
2. If the warranty claim proves to be justified, the product will be returned to the user freight prepaid.
3. Warranty claims other than those indicated above are expressly excluded.
§ 3 RETURN AUTHORIZATION NUMBER
1. To obtain warranty service, the buyer (or his authorized dealer) must call BEHRIN ER (see
enclosed list) during normal business hours BEFORE returning the product. All inquiries must be
accompanied by a description of the problem. BEHRIN ER will then issue a return authorization
number.
2. Subsequently, the product must be returned in its original shipping carton, together with the
return authorization number to the address indicated by BEHRIN ER.
3. Shipments without freight prepaid will not be accepted.
§ 4 WARRANTY REGULATIONS
1. Warranty services will be furnished only if the product is accompanied by a copy of the original
retail dealers invoice. Any product deemed eligible for repair or replacement by BEHRIN ER
under the terms of this warranty will be repaired or replaced within 30 days of receipt of the product
at BEHRIN ER.
2. If the product needs to be modified or adapted in order to comply with applicable technical or
safety standards on a national or local level, in any country which is not the country for which the
product was originally developed and manufactured, this modification/adaptation shall not be
considered a defect in materials or workmanship. The warranty does not cover any such modifi-
cation/adaptation, irrespective of whether it was carried out properly or not. Under the terms of this
warranty, BEHRIN ER shall not be held responsible for any cost resulting from such a modifica-
tion/adaptation.
3. Free inspections and maintenance/repair work are expressly excluded from this warranty, in par-
ticular, if caused by improper handling of the product by the user.
This also applies to defects caused by normal wear and tear, in particular, of faders, potentiometers,
keys/buttons and similar parts.
4. Damages/defects caused by the following conditions are not covered by this warranty:
smisuse, neglect or failure to operate the unit in compliance with the instructions given in
BEHRIN ER user or service manuals.
sconnection or operation of the unit in any way that does not comply with the technical or safety
regulations applicable in the country where the product is used.
sdamages/defects caused by force majeure or any other condition that is beyond the control of
BEHRIN ER.
5. Any repair or opening of the unit carried out by unauthorized personnel (user included) will void the
warranty.
6. If an inspection of the product by BEHRIN ER shows that the defect in question is not covered
by the warranty, the inspection costs are payable by the customer.
7. Products which do not meet the terms of this warranty will be repaired exclusively at the buyers
expense. BEHRIN ER will inform the buyer of any such circumstance. If the buyer fails to submit a
written repair order within 6 weeks after notification, BEHRIN ER will return the unit C.O.D. with a
separate invoice for freight and packing. Such costs will also be invoiced separately when the buyer
has sent in a written repair order.
§ 5 WARRANTY TRANSFERABILITY
This warranty is extended exclusively to the original buyer (customer of retail dealer) and is not
transferable to anyone who may subsequently purchase this product. No other person (retail dealer,
etc.) shall be entitled to give any warranty promise on behalf of BEHRIN ER.
§ 6 CLAIM FOR DAMAGES
Failure of BEHRIN ER to provide proper warranty service shall not entitle the buyer to claim (conse-
quential) damages. In no event shall the liability of BEHRIN ER exceed the invoiced value of the
product.
§ 7 OTHER WARRANTY RIGHTS AND NATIONAL LAW
1. This warranty does not exclude or limit the buyers statutory rights provided by national law, in
particular, any such rights against the seller that arise from a legally effective purchase contract.
2. The warranty regulations mentioned herein are applicable unless they constitute an infringement
of national warranty law.
The information contained in this manual is subject to change without notice. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical,
including photocopying and recording of any kind, for any purpose, without the express written permission of BEHRIN ER Spezielle Studiotechnik mbH.
BEHRIN ER and ULTRA-DI are registered trademarks. ALL RI HTS RESERVED. © 2001 BEHRIN ER Spezielle Studiotechnik mbH.
BEHRIN ER Spezielle Studiotechnik mbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, ermany
Tel. [phone] / 92 06-0, Fax [phone] / 92 06-30
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