The ENGL E633 is an all tube 2 channel head that's as hot as a fireball and is perfect for any style of music. It features 8 control options with a Mid Boost and a tube buffered FX Loop.
0% Interest
Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
Earn rewards every time you shop at AMS. You'll collect points on eligible purchases that turn into promotional savings on future gear, with points typically available several days after your order ships. All you need is a free AMS account — no credit card, financing, or payment plan required.
The more you shop, the more you earn. Create a free account and start earning from your very first eligible purchase. Rewards are applied as a discount on future eligible purchases.
Earn points on eligible purchases with AMS Rewards and turn them into savings on future orders, no credit card required. You can apply points at checkout once they’re available.
OR
h m s
Compare
Compare! Here are all the serial numbers of this model we have in stock. Compare them all and select your favorite!
Opt in for Notifications on this product for the price drops, stock changes and promotions
Did you know AMS is the only music distributor with four distribution centers? And that means we can offer super-fast shipping on all your music products. Whether you don’t want the spark of inspiration to fade or you really need that replacement speaker before the next show, we have you covered anywhere in the U.S. And even better, it’s FREE!
You shouldn’t have to pay extra for a little peace of mind. When you purchase from AMS, you’ll get a free 12-month extended warranty to cover your purchase — and that’s in addition to any manufacturer’s warranties! Thousands of items in our catalog feature the “Gold Lock Extended Warranty,” so you can feel confident in your purchase.
45
Day return
Sometimes the gear on the computer screen seems like a better fit than when you actually get your hands on it. We understand, and that’s why AMS offers an industry-leading 45-day money-back guarantee. If you’re not happy with an item, you have a full month and a half to send it back! We don’t want to just sell you gear. We want to sell you the RIGHT gear — even if it takes a few tries.
0% Interest
Payment Plan
Don’t sell your soul to a creditor to get the gear you need. At AMS, we want to lower the barriers to create. That’s why we offer in-house 0% financing, and you don’t even have to open a new line of credit! Spread out payments on your credit card to simplify financing and avoid hefty late fees or service charges. Cost shouldn’t interfere with your creativity.
Minor Blemished Products are items that have been returned in excellent condition with very minor cosmetic blemishes, allowing you to get great gear at a discounted price. In fact, many times our customers have difficulty finding the minor blemishes at all! These products are 100% inspected and tested to guarantee functionality. They include all components, manuals and the full Manufacturer's warranty unless otherwise stated, along with the AMS 45-Day Money-Back Guarantee to ensure your satisfaction. Special offers, promotions and rebates may not apply. The following manufacturers do not offer a warranty on Minor Blemished products: Casio, Ampeg, Avalon, Chauvet, Electro-Voice, Epiphone, Gibson, Ibanez, Kramer, Mackie, Maestro, Mesa, Peavey, PreSonus, Steinberger, Tobias
The ENGL E633 Fireball 25 is like a younger sibling to the legendary Fireball 100 — equally powerful but far more neighbor-friendly. This German-engineered monster delivers everything from shimmering cleans to face-melting high gain in a compact, 25-watt package. Whether you're chasing the glassy chime of indie rock or the crushing distortion of modern metal, this two-channel tube head has the tonal firepower to match your ambitions.
From Sparkle to Sizzle
The Fireball 25 isn't just a one-trick pony; it’s a tonal chameleon. The Clean channel offers crystalline clarity perfect for jazz, smoothly transitioning into a warm, chimey crunch as you push the gain. Switch over to the Lead channel, and you’re plunged into full-throttle rock and metal territory, with seemingly endless reserves of tube-driven gain. It’s like having two distinct amps in one compact, back-friendly head.
Dual-Channel Versatility: The Clean channel delivers everything from sparkling cleans to overdriven crunch, while the Lead channel picks up where it left off with crushing high-gain tones perfect for modern rock and metal.
6L6GC Power Tubes: Borrowing the same power section as its bigger brother, the Fireball 100, this amp delivers serious punch and headroom that belies its 25-watt rating — plenty of muscle for stage and studio work.
Built-In Noise Gate: Tame the inevitable hiss and hum that comes with extreme gain settings. The adjustable threshold keeps your tone tight and focused, even when you're cranking the distortion to eleven.
Cut Through Any Mix
Ever get buried in the band mix during a solo? The Fireball 25 has your back. The switchable Mid Boost function instantly pushes your sound forward, giving you the presence and cut you need to claim your moment in the spotlight. And when you need to dial things back for late-night practice sessions or apartment-friendly recording, the Power Soak feature lets you push those tubes into sweet saturation at whisper-quiet volumes.
Switchable Mid Boost: Available on both channels, this feature adds a focused midrange bump that helps your solos cut through dense mixes without sounding harsh or shrill.
Power Soak with Four Settings: Choose from Full (25W), 5W, 1W, or Speaker Off modes to get power tube saturation at any volume — perfect for capturing that cranked-amp sound without angering your neighbors.
Master Volume Boost (M.V.B.): Need an instant level jump for solos? The footswitchable Master Volume Boost gives you that extra kick without changing your carefully dialed-in tone.
Practicality Meets Power
The Fireball 25 isn't just about killer tone — it's built to survive the rigors of gigging and recording. The tube-buffered effects loop keeps your time-based effects pristine, while the direct line output (at 0 dB) makes silent recording and direct-to-interface setups a breeze. Add in flexible speaker impedance matching and compatibility with the ENGL Z4 footswitch, and you've got a professional-grade amp that's ready for anything.
Tube-Buffered FX Loop: Keep your delays, reverbs, and modulation effects sounding lush and dimensional with a true tube-buffered send/return loop that maintains signal integrity.
Flexible Connectivity: Multiple speaker outputs (1x 8-16Ω or 2x 16Ω parallel) plus a 0 dB line output for direct recording or running through IR loaders and DAWs without additional gear.
Z4 Footswitch Compatible: Control channel switching, Mid Boost, FX Loop bypass, and Master Volume Boost remotely with the optional ENGL Z4 four-button footswitch (sold separately).
Go Ahead, Start a Fire
The ENGL E633 Fireball 25 delivers exceptional tone without the hassle of heavy, bulky gear. Powered by 6L6 tubes, this compact, German-made amp features a versatile two-channel design, along with practical features like a Power Soak and built-in Noise Gate. Whether you’re in the studio or on stage, it provides professional-quality sound in a portable, lightweight package — ideal for players who prioritize great tone and convenience.
ENGL E633 Fireball 25 Features:
25-watt all-tube head with 2 channels (Clean and Lead)
Four ECC83/12AX7 preamp tubes and two 6L6GC power tubes
Built-in adjustable Noise Gate for high-gain clarity
Switchable Mid Boost function on both channels
Power Soak with four settings: Full (25W), 5W, 1W, and Speaker Off
Tube-buffered effects loop for pristine time-based effects
Master Volume Boost (M.V.B.) for instant level jumps
Line output (0 dB) for silent recording and direct interface connection
Flexible speaker outputs: 1x 8-16Ω or 2x 16Ω parallel
Compatible with ENGL Z4 footswitch for remote control (sold separately)
