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CONTROL PANEL
The Blues Junior IV is a longtime 15-watt favorite with warm tube tone ideal for the go-anywhere guitarist who needs great
sound and versatile features such as spring reverb. Features include:
• Modified preamp circuitry for increased fullness
• Spring Reverb smoothness mod
• Celestion® 12” A-TYPE speaker
• Single-button footswitch for FAT mid boost
• Steel-reinforced strap handle
• Ivory pointer knobs
• Improved control panel texture and graphics
• Lightly aged silver grille cloth
A. INPUT: Plug your guitar in here.
B. VOLUME: Adjusts preamp gain. Increase the volume
setting to produce more distortion and sustain. Use
lower volume settings to produce cleaner sounds.
C. FAT: Press in to boost preamp gain for extra distortion
and sustain. You can use a footswitch to activate the FAT
boost remotely. See Footswitch (J) on page 3.
D. TREBLE/BASS/MIDDLE: Adjusts tone character.
E. MASTER: Adjusts the overall volume output of the
amplifier. Use MASTER to adjust the volume of the
amplifier after you have set VOLUME (B) for the desired
level of preamp distortion.
F. REVERB: Adjusts the level of the reverb effect.
G. POWER INDICATOR: Illuminates when the unit is on.
H. POWER SWITCH: Switches the unit on/off.
TREBLE
VOLUME
FAT
INPUT
ON
OFF
BASS
MIDDLE
MASTER
REVERB
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