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ULTRABASS BT108
3. CONTROL ELEMENTS
Fig. 3.1: Upper side: Control elements
Connect your bass to the INST. INPUT jack, using a
standard cable with a 1/4" TS connector.
Use the VOLUME control to adjust the volume of the
instrument channel. To change the instrument-to-CD volume
ratio, use your instruments volume control.
Use the CD INPUT 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.
This connector is a 1/4" TRS jack. If your CD player is
equipped with cinch outputs, youll need an adapter cable,
which you can buy at your local music shop. Illustration 4.3
in chapter 4. AUDIO CONNECTIONS shows you what
kind of adapter to buy. You can also use a mono cable (fig.
4.4). This will not damage your CD player or bass amp.
The LOW control allows you to boost or cut the low-
frequency range.
Using the LOW MID control you can boost or cut the lower
mids.
The HIGH MID control allows you to boost or cut the upper
mids.
The HIGH control governs the high-frequency range to
give your bass a more cutting sound.
The HEADPHONES 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 BT108 to the line
input (LINE IN) on the console (for example,
BEHRINGER EURORACK UB1222FX-PRO). Please use a
mono cable for this application.
+ Some headphones produce distortion if the volume
level is too high. Please cut back the VOLUME control
until the distortion disappears.
Use the POWER switch to switch on your BT108. The
POWER switch should be set to Off before you connect
your bass amp to the mains.
+ Please note: The POWER switch does not disconnect
the unit from the mains. Unplug the power cord
when you dont want to use the unit for some time.
Fig. 3.2 Rear view: Serial number
SERIAL NUMBER.
No matter which way you adjust the controls on your bass
amp: the sound of your bass also has some influence on the
overall sound. Therefore we may only give you a few tips to get
you started.
+ Most bass guitars sound best when their tone and
volume controls are turned up as much as possible.
Experiment with the controls to find out how you can modify
the sound to your liking. Experienced bassists write down their
favorite settings or attach stickies underneath the controls.
4. AUDIO CONNECTIONS
Your BEHRINGER ULTRABASS BT108 features 1/4" connectors
on inputs and outputs. 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.
Fig. 4.1: 1/4" mono connector (TS) for the INST. INPUT
4. AUDIO CONNECTIONS