Guitar Gear ReviewsEngl E670FE-EL34 Special Edition
A feature-packed tube head with exceptional sound-shaping for professionals seeking ultimate versatility.
★★★★★ 5/5 · 2 buyer reviews · 6 min read · updated 2026-09-17 · Tested by Cal Whitaker
Shipping and duties
The retailer ships from its warehouse in Germany. Prices are shown in US dollars and do not include import duties. Orders under roughly $800 usually clear US customs without duty; above that, a duty of a few percent may be collected on delivery. 30-day money-back and a 3-year warranty apply.
Scores by area
Where it shines, where it stumbles
What convinced me
- Extensive five-channel configuration for unmatched tonal variety
- Fully tube-driven circuitry with high-quality EL34 and ECC83 tubes
- Includes advanced features like three tube-buffered effects loops and MIDI integration
- Comprehensive tone-shaping options such as Gain Boost, Hi Gain, Mid Shift, and more
- Solid build quality and premium components, made in Germany
What bugged me
- No built-in reverb, which may disappoint some users
- Footswitch is not included and must be purchased separately
- Heavy and bulky at 22.5 kg, not ideal for frequent transportation
- Complex controls may be intimidating for those unfamiliar with sophisticated amplifiers
- High price point limits accessibility for budget-conscious buyers
Is it the right one for you?
Good pick if
Ideal for professional guitarists and studio engineers seeking maximum tonal flexibility and advanced routing. Suits genres requiring heavy gain as well as pristine cleans. Excellent for those working with MIDI-based rigs.Look elsewhere if
Not for beginners due to its complexity and high price. May not suit gigging musicians who value portability over extensive features, or those who require built-in reverb.Suggested level: Professional
Specifications
- Power rating in w
- 100 W
- Power amplifier tubes
- EL34
- Channels
- 5
- Reverb
- No
- Footswitch
- No
Up close
Watch and listen
Questions players ask
Does the amp include a footswitch in the box?
No, the footswitch is not included and must be purchased separately.
Can this amp be controlled via MIDI?
Yes, it features MIDI In and Thru ports for extensive external control and integration into complex setups.
Is there a built-in reverb effect?
No, the unit does not feature a built-in reverb. Users will need to rely on external effects for reverb sounds.
What are the main sound characteristics of the five channels?
The channels span pristine cleans, diverse crunch options, and two levels of high-gain lead tones, with a separate Tube Driver channel for further tonal flexibility.
Does the amp support flexible connectivity for different cabinets?
Yes, it provides a comprehensive range of speaker outputs, accommodating various impedance loads (4, 8, and 16 Ohms).
Overview: Engl E670FE-EL34 Special Edition
The Engl E670FE-EL34 Special Edition is a high-end all-tube guitar amplifier head, positioned for professional and advanced users seeking maximum tonal flexibility. Released in October 2023 and priced at $2799, this model marks the "Founders" Edition of the platform. Manufactured in Germany, it combines modern connectivity with classic tube architecture, integrating a substantial number of features as part of its five-channel design: Clean, Crunch, Lead I, Lead II, and Tubedriver.
All-Tube Power and Architecture
The core of the E670FE-EL34 is an all-tube design delivering 100 watts of output, using four EL34 power tubes to provide strong headroom, dynamic punch, and tube saturation typical of classic British voicing. The preamp stage is driven by five 12AX7 (ECC83) tubes, which supply each channel with independent gain and tonal shaping sections, maximizing channel separation and noise immunity.
This kind of power and responsiveness caters to scenarios from high-decibel live gigs to studio sessions, with the EL34 tubes known for producing harmonically rich break-up and pronounced midrange content as gain increases. At 22.5 kg (nearly 50 pounds), this amp's chassis accounts for both physical robustness and the thermal management needs of larger tube arrays.
Five Channels: Configurations and Flexibility
The E670FE-EL34 presents five independently configurable channels:
- Clean: For clear, uncolored tones.
- Crunch: Designed for edge-of-breakup and medium gain tones.
- Lead I & Lead II: High-gain channels for saturated solo or rhythm sounds, each with separate voicing controls.
- Tubedriver: A dedicated overdrive channel, mimicking high-output tube push for modern lead applications.
Each channel has separate gain and volume controls. The Clean and Crunch channels share a three-band equalizer (bass, mid, treble), while Lead I and Lead II use a dedicated EQ cluster. Presence and master volume are likewise implemented in dual mode (Presence A/B, Master A/B), granting further flexibility for scene-based switching during performance.
Tone Shaping and Sound Options
Engl incorporates a comprehensive suite of sound modifiers:
- Gain Boost, Hi Gain
- Mid Shift, Mid Edge for frequency focus
- Kentukr and Bright for additional character shaping
- Modern Classic voicing, Mega Lo Punch, and Depth Boost for low-end emphasis
These controls push beyond traditional three-band stacks, letting users craft highly specific responses and dynamic behaviors. This depth suits those who need intricate tonal recall or who play across genres demanding varied voicings, from ultra-tight modern metal to classic blues and fusion.
Effects Loops and Signal Management
Three tube-buffered effects loops are provided. A dedicated serial loop handles straightforward signal chaining, while two additional loops (FX Loop I and II) can morph from serial to parallel, each with independent balance controls. This enables wet/dry blending, parallel effects routing, or complex split routing for advanced pedal and rack system users. Rear panel controls for loop balance and noise gate level address practical integration needs on stage or in the studio.
Noise Gate and Power Tube Monitoring
The built-in noise gate (with threshold control and foot-switchable operation) reduces unwanted feedback or hum, crucial for high-gain settings. The power tube monitor offers a visual check on tube performance, valuable for maintenance planning. These additions are aimed at gigging players who rely on consistent operation and want to minimize risk of tube failure.
Connectivity and Outputs
The E670FE-EL34 supports modern rig requirements with MIDI In/Thru for preset switching and integration with programmable effects systems, an S.A.C. Port for system accessory control, and a Z4 input for Engl's proprietary switching interfaces. Output jacks are provided for 4, 8, and 16 ohm cabinets (single and dual configurations), accommodating varying stage and studio setups. A dedicated line output supports direct recording or use with load boxes for silent operation.
Controls and User Interface
The amp's front and rear panels are populated with rotary controls for each critical stage: gain and volume per channel, distinct equalization banks, dual master and presence controls, and rear-mounted loop balance and noise gate. The absence of an onboard reverb means effects must be addressed externally, though the flexible FX loop system can compensate.
Conclusion: Technical Assessment
The Engl E670FE-EL34 Special Edition presents an intricate solution for guitarists who demand detailed control and a modern feature set in an all-tube amplifier head. Its five-channel design, extensive EQ and sound shaping, three tube-buffered effects loops, and multiple connectivity options cater to rigorous professional use in live and studio environments. However, its weight, lack of built-in reverb, and premium price tag suggest it is best matched to advanced users who need uncompromising flexibility, deep MIDI integration, and robust tube power. Recognizing that no user reviews are available at this time, the amp's technical merit is anchored squarely in its comprehensive specifications and German manufacturing pedigree.
The last word from the bench
The Engl E670FE-EL34 Special Edition stands out for its exceptional tonal flexibility, robust construction, and high-quality tube components. With five fully independent channels and advanced routing, it covers nearly any professional need on stage or in the studio. The lack of a built-in reverb and a standard footswitch may be drawbacks, but these are minor against its sheer sonic potential. A top choice for those wanting professional-grade features and sound.
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Engl E670FE-EL34 Special Edition
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