Table of Contents
Advertisement
G T 5 0 H U S E R ' S M A N U A L
INPUT
CLEAN
L E A D S E R I E S G U I TA R A M P S
VOLUME
BRIGHT
NORMAL
Tube Lead
Series
GT50H REAR PANEL
AC IN
FUSE
TRIODE
25W
HEATER
ANODE
12W
250V/T 5A
250V/T 500mA
TRIODE / PENTODE
CAUTION:
ENSURE THE DEVICE IS DISCONNECTED
~ 120V AC 50/60Hz 150W
FROM THE MAINS BEFORE REPLACING
T3.15AL/250V FUSE
THE FUSE. ONLY USE FUSES OF THE
SAME TYPE AND RATING.
1
2
3
4
1. AC INPUT: Attach the included AC power cable here.
2. MAINS FUSE: Contains the fuse for the amplifier mains.
Replace with the same type and value only.
3. HEATER FUSE: Contains the heater fuse for the preamp
and power amp tubes. Replace with the same type and
value only.
4. ANODE FUSE: Contains the anode fuse for the power
tubes. Replace with the same type and value only.
5. TRIODE/PENTODE SWITCH: Use this switch to select
Triode or Pentode mode for the tubes. CAUTION: The
amplifier should be switched to "STANDBY" before
changing the Triode/Pentode setting.
6. BOOST LEVEL: This adjust the level of the Boost
Function when engaged. This acts as a Lead
Boost of up to 15dB. This function can only be
accessed and turned on with the included GFS4
footswitch attached.
7. FOOTSWITCH JACKS: Connection for the GFS4, 4
button footswitch (included) via a 2 stereo 1/4" cables
(included). Switches Clean/Lead channel, High/Low
Gain, Reverb On/Off & Boost On/Off.
8. EFFECTS
LOOP
connectors.
GAIN
BASS
MID
HIGH
GAIN
LOW
GAIN
FOOT
PENTODE
SWITCH
50W
25W
MODE
SEND
BOOST
CHANNEL
REVERB
LEVEL
HIGH/LOW GAIN
BOOST
5
6
7
8
SEND:
Accepts
1/4"
instrument
LEAD
TREBLE
PRESENCE
VOLUME
LEAD
CLEAN
FX LOOP
MIX
GT50H
4 0HM
DRY
WET
RETURN
OR
8 0HM
DESIGNED IN CALIFORNIA
MADE IN CHINA
9
10
9. EFFECTS LOOP RETURN: Accepts 1/4" instrument
connector.
10. EFFECTS LOOP MIX CONTROL: Blends the parallel
effect loop signal with the main dry signal when an
external effect is connected via the effects loop. This
should be set to the "Dry" position when no external
effect is connected.
11. Speaker
Jacks
(2) 8 Ohm cabinets
12. Speaker
Jacks
(2) 16 Ohm cabinets
13. Speaker Jack for (1) 16 Ohm cabinet.
CAUTION: Do not operate the GT50H without a speaker
cabinet attached to the appropriate speaker jack.
Operating the GT50H without a speaker attached or with
speakers attached to the wrong Ohm rating jacks can
damage the amplifier. Minimum Ohm load for the GT50H
is 4 Ohms. Damage to the GT50H caused by operation
without a speaker cabinet attached or by improper Ohm
load matching is NOT covered under warranty.
w w w . a c o u s t i c a m p l i f i c a t i o n . c o m
REVERB
MASTER
STANDBY
50W PENTODE
25W TRIODE
25W PENTODE
GT50H
12W TRIODE
Acoustic Amplification
SPEAKERS
P.O. Box 5111
Thousand Oaks, CA 91359-5111
www.acousticamplification.com
?????????
8 0HM
16 0HM
OR
&
8 0HM
16 0HM
&
16 0HM
11
12
13
for
(1)
4
Ohm
cabinet
for
(1)
8
Ohm
Cabinet
POWER
or
or
4
Advertisement
Table of Contents
