Alvarez System 600T Руководство пользователя - Страница 3

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F r o n t P a n e l C o n t r o l s a n d F e a t u r e s

1) BAT Battery Indicator: When a guitar cable is connected to the

output jack, the BAT LED will light, and the System 600T preamp/Eq

functions are activated. (Please note that the digital tuner function can

be activated without connecting a

cable to the output jack). To prevent

excessive battery consumption,

unplug your cable from the output

jack when the System 600T is not in

use. When the battery is wearing out,

the LED will become dim, and the

signal will become distorted. If the

LED does not light, remove the chas-

sis and replace the battery.

2) PIEZO: This control adjusts the

level of the under-saddle bridge piezo

pickup.

3) AUX: This control adjusts the

level of the auxiliary input, either a

sound hole pickup, or an internally

mounted microphone.

4) LEVEL: This switch adjusts the

input level of the AUX input. When

using a magnetic sound hole pickup,

this switch should be set in the up,

or -20dB position. When an internal

microphone is used, this switch

should be set in the down,

or +20 dB position.

5) PHASE: This switch reverses

the polarity of the PIEZO input

relative to the AUX input. If the

polarities of the different inputs

are "out of phase", a noticeable loss

of low frequencies (bass) will occur.

If there is a loss of fullness, or low end when two input signals are

mixed, reverse the position of this switch (In/Out) to correct the polarity.

Note: If only one input is used, this switch will have no effect.

6) TREBLE: This slider provides +/- 15 dB of boost/cut at 10kHz. In

its center position, there will be no effect.

7) BASS: This slider provides +/- 15dB of boost/cut at

100Hz. In its center position, there will be no effect.

8) MID: This slider works in conjunction with the MID

FREQ control. It provides +/- 15 dB of boost/cut at the

center frequency determined by the MID FREQ control.

9) MID FREQ: This control adjusts the center frequency

of the MID slider, variable from 600Hz to 1.2kHz. If the

MID slider is set to its center position, no effect will be

heard. Maximum effect of this control can be heard as the

MID slider is set for boost or cut.

Note: The main Eq system (TREBLE/MID/MID

FREQ/BASS) controls will only affect the piezo input signal.

These controls have no effect on the AUX input signal.

10) MASTER: This control is the Master Volume, which

adjusts the overall output of the System 600T, including both

the PIEZO and AUX inputs.

11) NOTCH: This switch engages a notch filter, which is

used to control feedback in live performance applications.

When the switch is in its IN (down) position a deep, narrow

band of frequencies is cut from the signal, depending on the

position of the FREQ control. This notch filter is located

"post Eq" in the circuit and will affect the combined PIEZO

and AUX input signals.

12) FREQ: This control adjusts the center frequency of

the "anti-feedback notch". With the NOTCH switch engaged,

turn the MASTER control up until feedback is heard. Adjust

the FREQ control until the feedback disappears.

The Alvarez System 600T has been designed to accurately

reproduce the natural sound of an acoustic guitar when used

with a wide variety of sound reinforcement and recording

equipment. Sound is very subjective. We urge you to experiment with

the many control capabilities of the System 600T in order to "dial in"

the sound that is right for you.

S y s t e m 6 0 0 T O w n e r s G u i d e