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Engl Fireball 25 User Manual

Engl Fireball 25
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E633
Fireball 25
Operator´s Manual
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Engl Fireball 25 Specifications

General IconGeneral
Power Output25 Watts
Tubes (Power Amp)2 x EL84
Master VolumeYes
Presence ControlYes
ReverbNo
Effects LoopYes
Speaker Outputs1 x 8 Ohm, 1 x 16 Ohm
Channels2
EQ ControlsBass, Middle, Treble
Weight10 kg
Tubes (Preamp)4 x ECC83
FootswitchZ-4 (Channel switching, Master Volume Boost)

Summary

Front Panel Controls

Input Jack

Conventional 6.3mm / ¼" TS unbalanced input for connecting a guitar.

Clean Channel Controls

Controls for Clean Gain, Bass, Middle, and Treble EQ settings.

Lead Channel Controls

Controls for Lead Gain, Presence, and Volume settings.

Master Volume & Gain Boost

Master volume knob and Gain Boost push button for enhanced gain.

Channel & Power Switches

Switches for selecting Clean/Lead channel, Stand By, and mains Power.

Power Soak Operation

Power Range Selector

Selects output power levels: 20W, 5W, 1W, or Speaker Off.

Rear Panel Connections

Main Power Input & Fuse Box

Mains power socket (IEC C14) and access to mains/spare fuses.

Footswitch Jacks

Connects to footswitches for channel switching and effect control.

FX Loop and Reverb Mix

Serial FX Loop (Send/Return) and Reverb Mix Level adjustment.

Audio Outputs

Headphone, Line Out (Cab Sim/Pure Signal), and Poweramp outputs.

Technical Data

Performance Specifications

Details output power, input sensitivity, output level, and power consumption.

Component and Dimension Details

Lists fuse types, tubes used, unit dimensions, and weight.

Operation and Troubleshooting

Tube Amplifier Operation Tips

Guidance on gain settings, feedback prevention, and managing background noise.

Troubleshooting Common Issues

Solutions for fluctuating volume, no sound, and humming noise problems.

Support and Safety

Service Contact and Shipping

Information on contacting service and proper packaging for transport.

Footswitch Wiring Diagram

Diagram illustrating TRS footswitch connections and pin assignments.

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