The ENGL Fireball 100 Blackout 100W tube guitar amp head pushes the Fireball platform into a full-power, all-black stage format with tight low end, cutting mids and articulate high-gain response. Four ECC83 preamp tubes and four 6L6 power tubes drive Clean and Lead channels from sparkling cleans through saturated gain, while Bright, Bottom and Mid Boost voicings add fast ways to reshape the response. Dual Master volumes, a Lead-channel noise gate, a variable FX loop and ENGL's Power Tube Monitor system add practical control around the core two-channel design. For players who want the Fireball sound with full-size headroom, flexible switching and stage-ready routing, the Fireball 100 Blackout is built for rehearsal, recording and loud live rigs.

Clean and Lead Channels With Expanded Voicing

Clean and Lead channels use independent Gain controls with a shared passive Bass, Middle and Treble EQ. Bright adds upper-frequency emphasis to the Clean channel, while Bottom boosts low-end response across both channels and Mid Boost reinforces selected midrange frequencies across both channels. Lead Volume, Presence and switchable Master A/B volumes provide further control over channel balance, power-amp response and two selectable overall output levels.

Four 6L6s With Power Tube Monitoring

Four 6L6 power tubes deliver the amp's 100W output across supported 4-, 8- and 16-ohm loads. ENGL's Power Tube Monitor watches current flow across the four output tubes and can switch off an affected tube if excessive current is detected, with dedicated front-panel indicators identifying V1–V4. The adjustable noise gate works on the Lead channel, with a rear-panel threshold control to suppress unwanted noise between high-gain passages.

Variable FX Loop and Remote Switching Expand the Rig

The post-preamp, pre-master FX loop uses Send, Return and Balance controls to move from dry signal through parallel wet blending to fully serial operation at the Effect setting. Two Z4-compatible footswitch jacks divide remote control between Mid Boost/FX Loop on-off and Clean/Lead/Master A-B switching. Multiple 4-, 8- and 16-ohm speaker-output configurations add cabinet flexibility, giving the ENGL Fireball 100 Blackout 100W tube guitar amp head the routing and switching range needed for complete stage rigs.