Ampeg GVT15H Owner's Manual download pdf (Page 5)

input powergain treble middle volume reverbbass

off

on

standby

half

full

Guitar Amplifier GVT15H

5

®

™

The Front Panel

1. INPUT: Connect a guitar to this

1/4" input using a high-quality

shielded instrument cable.

2. GAIN: This control adjusts the

gain of the amplifier.

3. TREBLE: Use this to adjust the high

frequency level of the amplifier. This

provides up to 12 dB of boost or

12 dB of cut at 5 kHz. The high

frequency output is flat at the

center position.

4. MIDDLE: Use this to adjust the middle

frequencies of the amplifier. This

provides up to 10 dB of boost @ 2 kHz

or up to 6 dB of cut at 800 Hz.

5. BASS: Use this to adjust the low

frequency level of the amplifier. This

provides up to 12 dB of boost or

12 dB of cut at 80 Hz. The low

frequency output is flat at the

center position.

6. VOLUME: This control adjusts the

output level.

7. REVERB: This control adjusts the

amount of reverb. With the control

fully counter-clockwise, there is no

reverb applied; as the control is turned

clockwise, the amount of reverb

increases accordingly.

8. FULL/STANDBY/HALF: The amplifier

may be utilized in two distinct modes

of operation and output power rating.

Tetrode is the aggressive setting that

delivers full output power of 15 watts

rms[settingatFULL].Triodeisagentler

setting with more headroom that

reduces the output power to

7.5wattsrms[settingatHALF].

Always make sure this switch is in

STANDBY mode [middle position] when

powering the GVT15H ON or OFF [10].

Allow at least 30 seconds before moving

this switch to FULL or HALF.

During short breaks, this switch should

be set to STANDBY to help prolong the

life of the amplifier’s tubes.

9. STANDBY/POWER LED: This is a

multi-function LED. In STANDBY mode,

it glows red. In the ON mode (when the

high voltage kicks in) it glows green. If

it does not turn green in the ON mode,

there is no high voltage present and the

unit needs to be serviced.

10. POWER SWITCH: Use this switch to

turn the overall system power on or off.

Always turn this switch ON first and

OFF last! Turn the Full/Standby/Half

switch [8] on at least 30 seconds after

turning on the On/Off switch.

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