6 ULTRABASS BT108 User Manual
(1) Connect your bass to the INST. INPUT jack, using a standard cable with a
¼" TS connector.
(2) Use the VOLUME control to adjust the volume of the instrument channel.
Tochange the instrument-to-CD volume ratio, use your instrument’s
volume control.
(3) 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 ¼" TRS jack. If your CD player is equipped with cinch
outputs, you‘ll 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 (g. 4.4). This will not
damage your CD player or bass amp.
(4) The LOW control allows you to boost or cut the low-frequency range.
(5) Using the LOW MID control you can boost or cut the lower mids.
(6) The HIGH MID control allows you to boost or cut the upper mids.
(7) The HIGH control governs the high-frequency range to give your bass a more
“cutting” sound.
(8) 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.
(9) Use the POWER switch to switch on your BT108. The POWER switch should
be set to “O” 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 don’t want to use the unit for
some time.
(10)
Fig. 3.2 Rear view: Serial number
(10) SERIAL NUMBER.
No matter which way you adjust the controls on your bass amp: the sound of your
bass also has some inuence 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 nd 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 ¼" 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.
strain relief clamp
sleeve
tip
sleeve
(ground/shield)
Unbalanced ¼" TS connector
tip
(signal)
Fig. 4.1: ¼" mono connector (TS) for the INST. INPUT
strain relief clamp
sleeve
ring
tip
sleeve
ground/shield
¼" TRS headphones connector
ring
right signal
tip
left signal
Fig. 4.2: ¼" stereo connector (TRS) for headphones or CDINPUT
R
L
R
L
ring
CD Input
ULTRABASS BT108 CD Player output
tip
sleeve
tip
tip
sleeve
sleeve
Fig. 4.3: Stereo adapter cable
sleevesleeve
tiptip
CD Player output
CD Input
ULTRABASS BT108
Fig. 4.4: Mono adapter cable
(21 pages)
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