Yamaha BBT 500H 소유자 매뉴얼 - 페이지 14

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Detailed Parameter Settings

Utility Mode

The Utility Mode provides settings for the Crossover Filter and MIDI.

These settings are saved internally when you exit the Utility Mode and

kept even when the amplifier's power is switched OFF.

Entering the Utility Mode

To enter the Utility Mode, from any mode press and hold the [FUNC-

TION] switch for more than 3 seconds, until "

play.

How Knobs Function in the Utility Mode

In the Utility Mode, only the INPUT LEVEL, OUTPUT, and COMP knobs

function. All other knobs (SOUND TYPE, GAIN - TREBLE) have no func-

tion.

• INPUT LEVEL: Sets the Input Level

• OUTPUT: Sets the output level

• COMP: Sets the cut off frequency of the crossover filter

When the COMP knob is used (when setting the crossover filter), the

setting's value is shown in the display. Other than that, only

pears on the display.

Use the [MANUAL] switch and Memory Switches [1] through [5] to set

individual MIDI settings. (

When the COMP knob is used (when

setting the crossover filter), the setting's

Individual MIDI

value is shown in the display. Other than

Settings

that, only

utL

" appears on the dis-

[MIDI Settings] pg. 15)

utL

appears on the display.

By connecting two BBT500Hs as shown in the illustration below, you

can create a bi-amplified system, where one amplifier is used to drive

high frequencies and a second amplifier drives low. This system uses

the amplifier's onboard crossover filter (LPF or HPF) to determine the

range of frequencies that each amplifier will deliver.

Setting the Crossover Filter

Press and hold the [FUNCTION] switch for more than three sec-

onds (until "utL" appears on the display) to enter the Utility

Mode.

Rotate the COMP knob to set the Crossover filter's cutoff fre-

quency.

* Range of cutoff frequency

L10

(LPF 100Hz) to

h10

(HPF 100Hz) to

When using a bi-amplified system, make sure

that the INPUT LEVEL control knob on the

second BBT500H is set to its minimum level.

Ex.) Operating a bi-amplified system in which the crossover fil-

ter on the first amplifier is set to h50 (HPF 500Hz) to pro-

duce high frequencies, and the crossover filter on the sec-

ond amplifier is set to L50 (LPF 500Hz) to produce low fre-

quencies.

First amplifier (HPF 500Hz)

utL

ap-

INPUT

Second amplifier (LPF500Hz)

INPUT

* Set the INPUT LEVEL

to its minimum level

Crossover Filter

L00

byP

(LPF 1000Hz),

h00

(HPF 1000Hz), 93 steps

TUNER

OUT

Bass

h50

* Set to "

" with

the COMP control

knob

L50

* Set to "

" with the

COMP control knob

(Bypass),

SPEAKER

Produces

higher

frequencies

above 500Hz

SPEAKER

Produces

low

frequencies

up to 500Hz