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ULTRABASS BX300
1. INTRODUCTION
With the BX300 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 practice amp that stands out from
the herd of ordinary bass amplifiers. And indeed, the BX300 gives you plenty of functionality and a broad
range of connection and expansion options. In a word: youll be fascinated to find that the BX300 is a workstation
with a character.
BEHRINGER is an audio engineering company that has been successfully developing professional products
for studio and live applications for many years now. Our range of products includes microphones and a variety
of 19" devices (compressors, enhancers, noise-gates, tube processors, headphone amps, digital effects devices,
DI boxes, etc.) as well as monitoring and P.A. speakers plus professional live and recording consoles. You will
find all of our technical know-how combined in your BX300.
We also set great store by flexibility, which has become a particularly important factor in the music business
over the past few years. Modern bass players need to offer a broad range of sounds, but should still be able to
play in different kinds of applications at short notice: home recording, studio, live concerts. For this reason, it
has always been our prime concern to give you a Bass Workstation that offers you a complete set of useful
functions, but can still be operated intuitively and quickly.
Additionally, the world of electric bass playing has changed: new basses, with five or six strings, are being
launched all the time, there are effects devices and the desire to create ones own unique�� soundwhich can
only be achieved with innovative amplifiers. The unique ULTRABASS BX300 gives you pioneering sounds
coming from an extremely compact design.
As technology advances, youve got to keep track of latest technological breakthroughs to avoid falling by the
wayside. Which is what we did, by continuously improving this Bass Workstation and including many of your
valuable suggestions.
Experience a new-generation Bass Workstation with fascinating features:
sAstounding sound diversity through the SHAPE filter.
sState-of-the-art amplifier technology combined with a built-in bass cabinet give you precision in the treble
and punch in the bass range.
sThe high-grade and custom-built 10" speaker opens up new dimensions in terms of sound.
sThe rugged and compact design makes the ULTRABASS your favorite amp for club gigs and rehearsals.
sWith its highly useful expansion options, your BX300 is the perfect base for an expanded bass amplification
set-up.

1.1 The concept

We designed the BX300 to finally start the world of bass amp design moving. Your absolutely low-noise and
indestructible Bass Workstation represents the current state of the art.
The robust cabinet is made of high-grade and non-polluting E1-MDF boards, which are grooved, multi-glued
and free of formaldehydes. This is to make sure that your BX300 keeps working even when the going gets
tough.
1.1.1 The DYNAMIZER technology
When it comes to amplifying the signals delivered by electric instruments, youve got to separate the wheat
from the chaff. Unlike mixed or mastered signals, electric instruments usually deliver extremely high signal
peaks which, when raised in gain, produce nasty distortion. How an amplifier responds to these signal peaks
can therefore be seen as one of its most essential quality features.
Many manufacturers use limiters preceding the power stage to limit dynamic signal peaks. However, the
problem is the preamp, which is why weve equipped the BX300 with our unique DYNAMIZER preamp circuit
that gives you a lively and punchy sound with signal peakseven if the amp reaches its power limits. Extreme
signal peaks are limited effectively while the average level and hence the power of the overall signal is raised.
The sound gets more vivid and powerful in character, without any unmusical distortion. With its opto-limiter in
the power stage it is virtually impossible to overdrive the ULTRABASS BX300.
1. INTRODUCTION