Front: Thunder 50 Reverb, Type E320
Clean
Lead
Lead
Volume
Master
Gain
Bass
Middle
Treble
Crunch
Lead
Reverb
Power
Stand By
Thunder 50 Reverb
Input
Amp
Tube
1
2
3
4
5
6
7*
8
9
10
11
12
Front: Thunder 50, Type E322 & E325
1
2
3
4
5
6
7
8
9
10
11
12
Clean
Lead
Lead
Volume
Master
Gain
Bass
Middle
Treble
Crunch
Lead
Power
Stand By
Thunder 50
Input
Amp
Tube
Crunch
Volume
1 Input
Input¼" unbalanced input. Plug your guitar cord in here.
2 Gain
Controls input sensitivity. Use this knob and the Master (10) control to adjust
the volume of the Clean channel. For the Crunch and Lead channels,
Gain controls the amount of preamp distortion.
TIP:
Using different combinations of Gain, Master and channel Volume knob settings,
you'll be able to come up with a vast range of great sounds for the three channels
Clean, Crunch and Lead. Check out the diagram at the right to see our suggested
Crunch channel Gain settings for the two most popular types of pick-ups.
3 Crunch / Lead
Channel selector pushbutton for Crunch and Lead modes in the Lead channel.
This function can also be activated via a footswitch (jack 15). Once a footpedal is
connected, the channel selector pushbutton is deactivated.
CAUTION: Extremely high gain and volume levels in the Lead mode can produce
strong feedback. Avoid feedback squeals, they lead to hearing loss and damaged speakers!
4 Bass
Bottom end voicing control.
5 Middle
Mid-range voicing control.
6 Treble
Upper range voicing control.
Thunder 50
-
is an all-tube guitar amp, fully loaded with all key features. Next to its sonic
qualities, the beauty of this amp is rooted in simplicity. With its uncluttered, sensibly arrayed control
features, the Thunder comes complete with everything you need to dial in first-class sound. Handling
couldn't be easier. With the Thunder, what you see is truly what you get-great looks, great sound. The
latest in a line of classy amps, the Thunder delivers that unmistakable ENGL sound-warm, creamy and
extremely dynamic tube tone. This operating manual covers three different versions of the amp, the
Thunder 50 Combo (model E322), the Thunder 50 Head (model E325) and the Thunder 50 Reverb
(model E320), a Combo version equipped with a spring reverb. Quality components, excellent
workmanship and strict quality control ensure this amp retains its value. You'll find guidelines on
care and maintenance of tube amps on the last page of the manual. Please read and heed these before
operating your amp. You'll also come across boxes shaded grey throughout the manual. These are
located between the descriptions of the amp's functions and contain handy tips on the preceding
function. All critical information pertaining to the operation of this amp is preceded by "NOTE" or
"CAUTION." Please pay particular attention to these safety tips. The team wishes you all the
best—may you and your amp enjoy a "harmonically rich" future together!
