5
The -20 dB attenuation switches greatly increase the operating range of the ULTRA-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.
6
OUTPUT. This is the balanced microphone level output of the ULTRA-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.
7
Use 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.
8
Battery compartment. Loosen the screw to open the compartment and to replace the 9 V battery. When the
ULTRA-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 ULTRA-DI can be hooked up.
2.1 Tapping signal from the (Bass)guitar
Fig 2.1: Guitar ß DI ß Guitar 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 ULTRA-DI will give you clean and crisp sound. Connect the ULTRA-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 Converting the output 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 ULTRA-DI acts as both a ground isolator and an unbalanced to balanced
converter.
2.3 Converting a microphone from high impedance unbalanced to 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 ULTRA-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 output
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 ULTRA-DI without fear of overloading. Pay attention to the two -20 dB buttons on the ULTRA-DI! Both
must be depressed if an amplifier output is connected to the DI100 input.
Fig 2.3: Connection to an amplifier output
+
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.
3. SPECIFICATIONS
Power supply
Phantom power
Battery
Dimensions
Weight
Frequency Response
Noise Level
10 Hz to 93 kHz
-110 dBu
18 V DC to 48 V DC
9 V blockcell 6LR91
150 mm x 130 mm x 60 mm
ca. 650 g
THD+N @ 1 kHz / 0 dBu
Input Impedance
Load Impedance
Inputs
< 0,005 %
>250 kOhm
>600 Ohm
1/4” jack unbal. In/ Link Out
XLR unbalanced In
XLR balanced Out
+10/+30/+50 dBu
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 differ from those listed or shown.
Output
Maximum Input level
4. WARRANTY
§ 1 WARRANTY CARD/ONLINE REGISTRATION
To be protected by the extended warranty, the buyer must complete and return the enclosed 3. Free inspections and maintenance/repair work are expressly excluded from this warranty, in par-
warranty card within 14 days of the date of purchase to BEHRINGER Spezielle Studiotechnik ticular, if caused by improper handling of the product by the user.
GmbH, in accordance with the conditions stipulated in § 3. Failure to return the card in due time
This also applies to defects caused by normal wear and tear, in particular, of faders, potentiometers,
(date as per postmark) will void any extended warranty claims.
keys/buttons and similar parts.
Based on the conditions herein, the buyer may also choose to use the online registration option
4. Damages/defects caused by the following conditions are not covered by this warranty:
s
s
s
misuse, neglect or failure to operate the unit in compliance with the instructions given in
BEHRINGER user or service manuals.
§ 2 WARRANTY
1. BEHRINGER (BEHRINGER Spezielle Studiotechnik GmbH including all BEHRINGER subsidi-
aries listed on the enclosed page, except BEHRINGER 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, BEHRINGER shall, at
its sole discretion, either repair or replace the product.
connection 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.
damages/defects caused by force majeure or any other condition that is beyond the control of
BEHRINGER.
5. Any repair or opening of the unit carried out by unauthorized personnel (user included) will void the
warranty.
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
6. If an inspection of the product by BEHRINGER 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. BEHRINGER will inform the buyer of any such circumstance. If the buyer fails to submit a
written repair order within 6 weeks after notification, BEHRINGER 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.
1. To obtain warranty service, the buyer (or his authorized dealer) must call BEHRINGER (see
enclosed list) during normal business hours BEFORE returning the product. All inquiries must be
accompanied by a description of the problem. BEHRINGER will then issue a return authorization
number.
§ 5 WARRANTY TRANSFERABILITY
2. Subsequently, the product must be returned in its original shipping carton, together with the
return authorization number to the address indicated by BEHRINGER.
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 BEHRINGER.
3. Shipments without freight prepaid will not be accepted.
§ 4 WARRANTY REGULATIONS
§ 6 CLAIM FOR DAMAGES
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 BEHRINGER
under the terms of this warranty will be repaired or replaced within 30 days of receipt of the product
at BEHRINGER.
Failure of BEHRINGER to provide proper warranty service shall not entitle the buyer to claim (conse-
quential) damages. In no event shall the liability of BEHRINGER exceed the invoiced value of the
product.
§ 7 OTHER WARRANTY RIGHTS AND NATIONAL LAW
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, BEHRINGER shall not be held responsible for any cost resulting from such a modifica-
tion/adaptation.
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 BEHRINGER Spezielle Studiotechnik GmbH.
BEHRINGER and ULTRA-DI are registered trademarks. ALL RIGHTS RESERVED. © 2001 BEHRINGER Spezielle Studiotechnik GmbH.
BEHRINGER Spezielle Studiotechnik GmbH, Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, Germany
Tel. +49 (0) 21 54 / 92 06-0, Fax +49 (0) 21 54 / 92 06-30
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