Yamaha BBT500-110 Instrukcja obsługi - Strona 11

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1. Panel Controls and Connections

Operating Instructions

Getting sound output

First, make sure that the POWER switch is switched OFF, then

connect your bass to the INPUT Jack on the front panel.

Rotate the OUTPUT knob fully to the left and then switch the

POWER switch ON.

To protect the speakers, make sure that the

OUTPUT knob is set to "0" whenever switch-

ing the POWER switch ON or OFF.

First, set the INPUT LEVEL knob to its 12 O'clock position, then

while playing the bass, gradually increase the GAIN, MASTER,

and OUTPUT knobs to adjust the sound.

Once the system is producing sound, set the input level as

described in the "Adjusting the Input Level" section below.

Adjusting the Input Level

The INPUT LEVEL control optimizes the signal received from the bass

for use with the amplifier, to produce wide dynamic range and rich tone.

A poorly adjusted level results in noise, feedback, a cutup sound, etc.

* Since output levels vary from instrument to instrument, you will need to

readjust the input level to match the instrument's output level whenever

you change instruments.

Rotate the volume control on your bass to its maximum level

and play loudly while rotating the INPUT LEVEL knob.

An ideal level is attained when the green indicator is lit.

Continue to rotate the INPUT LEVEL knob to the right making

sure the red indicator does not light. As long as the red indica-

tor does not light, rotate the knob fully to the right.

Set the knob so that the red

indicator does not light.

Sound Setting

When the power is switched ON, all control knobs function as labeled

on the panel and described below. All lamps on the display above the

control knobs and switches are unlit.

Rotate the SOUND TYPE knob to select a sound type, then use the

Tone Control knobs to shape the sound. Before selecting a sound type,

first set the GAIN through TREBLE control knobs to their center posi-

tions then try out the different Sound Types.

Also, the COMP knob is used to adjust the compressor's compression

ratio. The compressor automatically balances the differences between

loud and soft levels when playing. Rotate the knob to the right to in-

crease the amount of compression.

e r t y u i o !0 !1

INPUT LEVEL: Sets the Input Level

SOUND TYPE: Selects the Sound Type (11 types)

FLAT ............ A clean tone with all frequencies set flat. This setting also

works well with an upright bass or an electric-acoustic bass.

TUBE ........... A clear and warm tube type sound. This setting also works

well with an upright bass or an electric-acoustic bass.

SOLID ......... A fat solid-state type sound

R & B ........... A fat R & B type sound

VINTAGE ..... A vintage tone with warm mid frequencies

MODERN .... A modern sound with rich low-end and bright high-end

CLASSIC ..... Rock bass sound

HEAVY ........ A heavier sound than the CLASSIC setting

DRIVE ......... Overdrive bass sound

DIST ............ Distortion bass sound

FUZZ ........... Fuzz bass sound

COMP: Compression Ratio (1.0 to ∞, 16 steps)

This adjusts the compressor's compression ratio and output levels simul-

taneously.

As the value increases, so does the amount of compression applied to

signals that exceed the threshold level (→ pg. 14).

GAIN: Pre-Amp Gain (0 to 10, 0.1 step)

MASTER: Master Volume (0 to 10, 0.1 step)

BASS: Bass Frequency (-15dB to +15dB, 0.2dB step)

LOW MID: Low Mid Frequency (-15dB to +15dB, 0.2dB step)

MIDDLE: Middle Frequency (-15dB to +15dB, 0.2dB step)

HIGH MID: High mid Frequency (-15dB to +15dB, 0.2dB step)

TREBLE: Treble Frequency (-15dB to +15dB, 0.2dB step)

OUTPUT: Sets the output level

Using the OUTPUT and MASTER Controls

HINT

Both knobs can be used to control the overall volume however, the

MASTER knob is the preamplifier's master volume and its setting is

saved in memory. The OUTPUT knob is the power amplifier's output

volume and its setting is not saved in memory. Use the MASTER knob

to set individual volume settings of patches saved to memory, and use

the OUTPUT knob to set the output volume level produced by the speak-

ers.