User’s manual
Version 1.2 April 2006
1) Read these instructions.
2) Keep these instructions.
3) Heed all warnings.
4) Follow all instructions.
To reduce the risk of electric shock, do not remove
the top cover (or the rear section). No user
serviceable parts inside; refer servicing to qualified
To reduce the risk of fire or electric shock, do not
expose this appliance to rain and moisture. The
apparatus shall not be exposed to dripping or
splashing and no objects filled with liquids, such
as vases, shall be placed on the apparatus.
This symbol, wherever it appears, alerts you to the
presence of uninsulated dangerous voltage inside
the enclosure—voltage that may be sufficient to
constitute a risk of shock.
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) Do not defeat the safety purpose of the polarized or
grounding-type plug. A polarized plug has two blades
with one wider than the other. A grounding type plug
has two blades and a third grounding prong. The wide
blade or the third prong are provided for your safety. If
the provided plug does not fit into your outlet, consult
an electrician for replacement of the obsolete outlet.
10) Protect the power cord from being walked on or
pinched particularly at plugs, convenience receptacles,
and the point where they exit from the apparatus.
This symbol, wherever it appears, alerts you to
important operating and maintenance instructions
in the accompanying literature. Please read the
11) Only use attachments/accessories specified by the
12) 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
13) Unplug this apparatus during lightning storms or
when unused for long periods of time.
14) Refer all servicing to qualified service personnel.
Servicing is required when the apparatus has been
damaged in any way, such as power supply cord or plug
is damaged, liquid has been spilled or objects have fallen
into the apparatus, the apparatus has been exposed to
rain or moisture, does not operate normally, or has been
15) CAUTION - These service instructions are for use by
qualified service personnel only. To reduce the risk of
electric shock do not perform any servicing other than
that contained in the operation instructions unless you
are qualified to do so.
180-Watt Bass Workstation with Original BUGERA™ Speaker and VTC-Technology
V Original BUGERA™ 15" special high-impact cone speaker
V Custom-made horn tweeter for high-end punch
V VTC Virtual Tube Circuitry for tube-like sound
V Dedicated 4-band EQ and Mid Shape function for awesome sound shaping
V Musical opto-limiter for ultimate volume without distortion
V Separate headphone output—perfect for quiet practicing
V Balanced XLR DI and Ground Lift switch for direct connection to your mixing console
V CD input allows you to play along to your favorite music
V FX Insert for external effects devices (stomp boxes, rack effects, etc.)
V High-quality components and exceptionally rugged construction ensure long life
V Conceived and designed by BEHRINGER Germany
V Powerful and ultra-compact 180-Watt Bass Workstation
Dear Customer,
Welcome to the team of
ULTRABASS users and
thank you very much for
expressing your confidence in BEHRINGER
products by purchasing
It is one of my most
pleasant tasks to write
this letter to you,
because it is the culmination of many months
of hard work delivered
by our engineering team
to reach a very ambitious
goal: to present you with
an outstanding bass
workstation that gives
you maximum flexibility
and performance with
its unique sound character and broad range of functions.
The task to design the new ULTRABASS certainly meant a great
deal of responsibility, which we assumed by focusing on you,
the discerning user and musician. It also meant a lot of work and
night shifts to accomplish this goal. But it was fun, too. Developing
a product usually brings a lot of people together, and what a
great feeling it is when everybody who participated in such a
project can be proud of what we’ve achieved.
It is our philosophy to share our joy with you, because you are
the most important member of the BEHRINGER team. With your
highly competent suggestions for new products you’ve greatly
contributed to shaping our company and making it successful. In
return, we guarantee you uncompromising quality as well as
excellent technical and audio properties at an extremely
favorable price. All of this will enable you to fully unfold your
creativity without being hampered by budget constraints.
We are often asked how we can produce such high-grade
devices at such unbelievably low prices. The answer is quite
simple: it’s you, our customers! Many satisfied customers means
large sales volumes enabling us to get better conditions of
purchase for components, etc. Isn’t it only fair to pass this benefit
back to you? Because we know that your success is our
success, too!
I would like to thank all people whose help on “Project
ULTRABASS” has made it all possible. Everybody has made
very personal contributions, starting from the designers of the
unit to the many staff members in our company and finally to you,
the users of BEHRINGER products.
My friends, it’s been worth the trouble!
1. INTRODUCTION ......................................................... 4
1.1 Before you get started ................................................. 5
1.1.1 Shipment ............................................................. 5
1.1.2 Initial operation .................................................... 5
1.1.3 Online registration .............................................. 5
2. WIRING TIPS .............................................................. 5
3. CONTROL ELEMENTS ............................................... 6
4. AUDIO CONNECTIONS ............................................... 7
5. SPECIFICATIONS ....................................................... 7
6. WARRANTY ................................................................ 8
With the BX1800 you have acquired a state-of-the-art Bass
Workstation that sets new standards in bass amp engineering.
Right from the start, our goal has been to design a revolutionary
amp that stands out from the herd of “ordinary” bass amplifiers.
And indeed, the BX1800 gives you plenty of functionality and a
broad range of connection and expansion options. In short: you’ll
be fascinated to find that the BX1800 is a Workstation with a
VTC Virtual Tube Circuitry
The VTC Virtual Tube Circuitry was specially developed to lend
the bass sound the unique character of classic tube amps.
Jam it up!
With its CD player input, your BX1800 is the ultimate practice
amp, because it couldn’t be easier to play along to your favorite
music. If you don’t want anybody listening to what you’re playing,
or simply wish to avoid disturbing the neighbors, just use your
headphones. The BEHRINGER HPS3000 is ideal just for that.
Please read the manual carefully and keep it around
for future reference.
High volume levels can damage your hearing or your
headphones. Please turn down the VOLUME control
to zero (all the way to the left) before you power up
the amp. Always make sure you use appropriate
volume levels.
Thank you very much,
Uli Behringer
1.1 Before you get started
1.1.1 Shipment
Your BX1800 was carefully packed at the factory, and the
packaging was designed to protect the unit from rough handling.
Nevertheless, we recommend that you carefully examine the
packaging and its contents for any signs of physical damage
that may have occurred during transit.
If the unit is damaged, please do NOT return it to
BEHRINGER. Instead, notify your dealer and the
shipping company immediately. Otherwise, claims
for damage or replacement may not be honored.
Always use the original packing carton to prevent
damage during storage or transport.
Make sure that no children are left unsupervised
with the BX1800 or its packaging.
Please ensure proper disposal of all packing materials.
1.1.2 Initial operation
Be sure that there is enough space around the unit for cooling.
To avoid overheating, please do not place the ULTRABASS near
radiators and other equipment emanating heat.
Please keep in mind that all the equipment has to
be grounded at all times. For your own protection,
never change or disable the grounding on your
equipment or on the cables! The unit shall always
be connected to the mains socket outlet with a
protective earthing connection.
Fig. 2.1: Example of a setup using the ULTRABASS BX1800
Fig. 2.2 shows a recommended setup for amplifying the sound
of your BX1800 using a sound reinforcement system of any
size. This way, you can also use your amp for playing live or for
rehearsals with your band.
1.1.3 Online registration
Please do remember to register your new BEHRINGER equipment
right after your purchase by visiting www.behringer.com
(alternatively www.behringer.de) and kindly read the terms and
conditions of our warranty carefully.
Should your BEHRINGER product malfunction, our goal is to have
it repaired as quickly as possible. To arrange for warranty service,
please contact the retailer from whom the equipment was
purchased. Should your BEHRINGER dealer not be located in
your vicinity, you may directly contact one of our subsidiaries.
Corresponding contact information is included in the original
equipment packaging (Global Contact Information/European
Contact Information). Should your country not be listed, please
contact the distributor nearest you. A list of distributors can be
found in the support area of our website (www.behringer.com).
Registering your purchase and equipment with us helps us
process your repair claims quicker and more efficiently.
Thank you for your cooperation!
Figures 2.1 and 2.2 show you how to connect your bass to the
If you want to use an effects unit (for example, the BEHRINGER
X V-AMP PRO) to experiment with some out-of-the-ordinary
sounds, you can connect your bass directly to the input of the
unit. Then, connect a second cable from the effects output to the
input on your bass amp.
If you have an electronic tuner, please be sure to insert it pre
effects device, so that the tuner only receives a dry signal without
effects components.
X V-AMP PRO: no additional tuner required.
The built-in loudspeaker is disabled automatically
when you plug in the headphones.
Fig. 2.2: Live setup
Fig. 3.1: Front view
Connect your bass to the INPUT jack, using a standard
cable with a 1/4" TS connector.
Use the balanced D.I. OUT XLR output to feed the audio
signal from your ULTRABASS to an external mixing console.
The D.I. OUT signal is post-EQ.
Press the PAD switch when using active instruments with
high output levels. In this case the INPUT jack features 6 dB
less gain. For passive instruments the PAD button has to
be depressed.
Use the POWER switch to switch the BX1800 on or off.
You should always make sure that the POWER switch is in
the “Off” position when initially connecting the unit to the
Pressing the SHAPE button will activate the Shape function.
The Shape function on your BX1800 provides a
revolutionary type of filter that you can use to modify your
bass sound.
Use the VOLUME control to adjust the volume of the
instrument channel. To change the balance between the
instrument and CD volume level, use your instrument’s
volume control.
The LOW control allows you to boost or cut the lowfrequency range.
To disconnect the unit from the mains, pull out the main cord
plug. When installing the product, ensure that the plug is
easily accessible.
Please note: Merely switching the unit off does not
mean that it is fully disconnected from the mains.
When not using the unit for prolonged periods of
time, please unplug the unit’s power cord from the
power outlet.
Using the LOW MID control you can boost or cut the lower
The HIGH MID control allows you to boost or cut the upper
The HIGH control governs the high-frequency range to
give your bass a more “cutting” sound.
Use the CD IN connectors to connect the output of your
CD player, tape deck, CD or MD walkman. This way you
can play along to music or bass guitar tutorial CDs.
The BX1800 features an FX INSERT-Loop for external
effects. Connect the SEND output to the input of your
effects device, for example, our proven multi-effects
This output can also be used to connect your tuner.
Connect the RETURN jack to the output of your effects
device. Since the BX1800 features a serial effects path,
the mix ratio must be set on your effects device.
The PHONES jack is for headphones. When you plug in
your headphones, the built-in loudspeaker is muted.
The headphone signal can also be routed to a mixing
console or sound reinforcement system. Connect
the headphones output on your BX1800 to the line
input (LINE IN) on the console (for example,
mono cable for this application.
Fig. 3.2 Rear view
MAINS CONNECTION. Use the power cord supplied with
the unit to connect it to the mains.
connecting the unit to the mains, make sure that the voltage
setting matches your local voltage. A blown fuse should
only be replaced by a fuse of the same type and rating. On
some units, the fuse holder can be switched to one of two
positions, i.e. 230 V and 120 V. When operating the unit
outside Europe at 120 V, a higher fuse rating is required.
Some headphones produce distortion if the volume
level is too high. Please cut back the VOLUME control
until the distortion disappears.
Use the MASTER control to adjust the output level of the
D.I. OUT output.
The GND LIFT switch disconnects (switch pressed) the
ground connection at the D.I. OUT output to effectively
eliminate hum noise resulting from ground loops.
Except for the D.I. OUT output which is on a balanced XLR
connector, your BEHRINGER ULTRABASS BX1800 features
1/4" connectors on inputs and output. More detailed information
can be found in chapter 5, “SPECIFICATIONS.”
Please keep in mind that all the equipment has to
be grounded at all times. For your own protection,
never change or disable the grounding on your
equipment or on the cables! The unit shall always
be connected to the mains socket outlet with a
protective earthing connection.
Active instrument input
Input impedance
Passive instrument input
Input impedance
Input impedance
CD input
1/4" mono jack, unbalanced
approx. 220 kΩ unbalanced
1/4" mono jack, unbalanced
approx. 730 kΩ unbalanced
1/4" mono jack, unbalanced
approx. 15 kΩ unbalanced
RCA, unbalanced
Output impedance
D.I. Out
Output impedance
Output level
1/4" mono jack, unbalanced
min. 2 kΩ unbalanced
XLR connector, servo-balanced
approx. 100 Ω balanced
max. 0 dBu
Power amp output
180 Watts
High-power bass speaker
Mains voltages
Fig. 4.1: 1/4" mono connector (TS) for the INPUT
Power consumption
Mains connection
Dimensions (H x W x D)
15" BUGERA Classic Tone
custom-made horn tweeter
120 V~, 60 Hz
230 V~, 50 Hz
220 V~, 50 Hz
100 V~, 50 - 60 Hz
General export model
120/230 V~, 50 - 60 Hz
max. 290 W
100 - 120 V~: T 6.3 A H 250 V
200 - 240 V~: T 3.15 A H 250 V
Standard IEC receptacle
approx. 570 mm (22 1/2")
x 312 mm (12 3/10")
x 507 mm (20")
approx. 25.1 kg (55.35 lbs)
Fig. 4.2: 1/4" stereo connector (TRS) for headphones
Fig. 4.3: XLR connectors
Fig. 4.4: RCA cable
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.
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
2. The warranty regulations mentioned herein are applicable
unless they constitute an infringement of national warranty law.
Please do remember to register your new BEHRINGER
equipment right after your purchase by visiting
www.behringer.com (alternatively www.behringer.de) and
kindly read the terms and conditions of our warranty carefully.
Registering your purchase and equipment with us helps us
process your repair claims quicker and more efficiently. Thank
you for your cooperation!
1. BEHRINGER (BEHRINGER International GmbH including all
BEHRINGER subsidiaries 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 regulations
described below. If the product shows any defects within the
specified warranty period that are not excluded from this
warranty as described under § 5, BEHRINGER shall, at its
discretion, either replace or repair the product using suitable
new or reconditioned parts. In the case that other parts are used
which constitute an improvement, BEHRINGER may, at its
discretion, charge the customer for the additional cost of these
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.
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.
2. Subsequently, the product must be returned in its original
shipping carton, together with the return authorization number to
the address indicated by BEHRINGER.
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 modification/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 modification/adaptation.
3. Free inspections and maintenance/repair work are expressly
excluded from this warranty, in particular, 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,
crossfaders, potentiometers, keys/buttons, tubes, guitar strings,
illuminants and similar parts.
4. Damages/defects caused by the following conditions are
not covered by this warranty:
V improper handling, neglect or failure to operate the unit in
compliance with the instructions given in BEHRINGER user
or service manuals.
V 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.
V 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.
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.
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.
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 under the
terms of this warranty will be repaired or replaced.
Failure of BEHRINGER to provide proper warranty service shall
not entitle the buyer to claim (consequential) damages. In no
event shall the liability of BEHRINGER exceed the invoiced value
of the product.
* Customers in the European Union please contact BEHRINGER
Germany Support for further details.
Technical specifications and appearance subject to change without notice. The information contained herein is correct at the time of
printing. The names of companies, institutions or publications pictured or mentioned and their respective logos are registered trademarks
of their respective owners. Their use neither constitutes a claim of the trademarks by BEHRINGER® nor affiliation of the trademark
owners with BEHRINGER®. BEHRINGER® 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. Colours and specification may vary slightly from product.
Products are sold through our authorised dealers only. Distributors and dealers are not agents of BEHRINGER® and have absolutely no
authority to bind BEHRINGER® by any express or implied undertaking or representation. 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® is a registered trademark.
ALL RIGHTS RESERVED. © 2006 BEHRINGER Spezielle Studiotechnik GmbH,
Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, Germany.
Tel. +49 2154 9206 0, Fax +49 2154 9206 4903
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