Evh 5150 III Stealth 100W Head

Evh 5150 III Stealth 100W Head: Detailed Hands-on Test

Overview and Build

The Evh 5150 III Stealth 100W Head, introduced in April 2021, stands as one of the most robust high-gain tube amp heads currently available. Priced at $2,049 and assembled in Mexico, this head weighs in at 25 kg with physical dimensions of 76 x 31 x 28 centimeters. With its matte-black "Stealth" finish and unmistakable stage presence, the 5150 III feels every bit the professional-grade tool. The metallic chassis and control panel inspire confidence in both home studios and touring rigs. This is a full-sized amp for those needing muscle, not a grab-and-go combo for casual gigs.

Amplification and Circuit Design

Under the hood, the 5150 III Stealth boasts a classic all-tube signal path. The preamp stage is built around eight JJ ECC83S (12AX7) tubes, which contribute to its signature dynamic response and saturated gain capabilities. Power comes from four matched Shuguang 6L6 tubes, pushing a formidable 100 watts. This power section gives the Stealth enough headroom for large venues and provides tight, articulate bass with plenty of punch across all three channels.

• Preamp Tubes: Eight JJ ECC83S (12AX7)
• Power Tubes: Four matched Shuguang 6L6
• Power Output: 100 watts
• Channels: Three (clean, crunch, lead)

Channel Layout and Controls

One of the strengths of the 5150 III is its truly independent channel setup. Each channel has its own dedicated set of controls: gain, bass, midrange, treble, volume, presence, and resonance. This allows for precision tailoring per channel, moving between sparkling cleans, thick crunch rhythms, and uncompromising lead tones without compromise. Channel selection is managed via front panel buttons or the included four-button footswitch, which connects via a 1.5-meter seven-pin cable for reliable switching. The footswitch feels sturdy and responsive, with clear separation between channel and function toggling.

• Customizable channel EQ and gain per channel
• Dedicated presence and resonance controls for final tuning
• 4/8/16 ohm speaker impedance selector

Connections and Flexibility

Rear panel connectivity is comprehensive: two speaker outputs allow flexible pairing with cabinets of various impedances, while the effects loop delivers consistent tone when integrating pedals or rack processors. There is also a preamp output, useful for direct recording or driving external power amps and effects chains. For the touring guitarist or the studio musician who needs a versatile platform, these routing options add significant value.

• Dual speaker output jacks
• Switchable output impedance (4, 8, 16 ohms)
• Dedicated effects loop
• Preamp output

Sound and Performance

Testing the 5150 III Stealth through an oversized 4x12 cabinet loaded with vintage-style speakers quickly reveals why this amp has become a modern standard in high-gain amplification. The clean channel offers surprising clarity and headroom, nonetheless, this is not a boutique clean amp. Its voicing retains some warmth and bite that suit crunch transitions. On channel two, the crunch mode, thick rhythm tones emerge easily, with a pronounced mid-range and fast attack, ideal for modern rock and aggressive rhythm guitar. The lead channel exemplifies saturated, articulate gain: string definition stays intact even at high gain settings, and palm-muted riffs retain their percussive impact without turning muddy.

The high-output matched 6L6 power section keeps the lows tight and the highs cutting, especially when volumes climb. The overall gain structure is clearly voiced with metal and hard rock in mind, with some user testimonials specifically praising its overtone-rich, saturated character as "beyond belief" and "top metal head." Bass response stays focused, and the amp responds well to down-tuning or extended-range guitars. The absence of reverb may be limiting for players wanting built-in ambiance, but in most cases, time-based effects slot comfortably in the serial effects loop.

Ergonomics and Practical Considerations

At 25 kg, this amp head is not for the faint of heart or small venues. Its significant size and weight make it more suitable for fixed installations, studios, or fully equipped rehearsal spaces. The handle and rugged enclosure make transport possible, but it is not a practical solution for cramped gigs or spontaneous sets. Most users will pair it with a robust speaker cabinet to harness its full potential.

Conclusion

The Evh 5150 III Stealth 100W Head targets serious players who demand versatility, uncompromised gain, and robust build quality. Its triple-channel design, detailed control set, and quality tube complement make it a backbone for modern metal and hard rock sounds. While the price and weight place it outside the entry-level market, for demanding users needing consistent, stage-ready tones and full command over their signal chain, the Stealth delivers in all core areas.

• Pros: Three fully independent channels, formidable gain structure, robust connectivity, stage-worthy power
• Cons: No built-in reverb, heavy and bulky design

At its core, the Evh 5150 III Stealth 100W Head remains a high-gain benchmark that rewards those who build their tone on power, clarity, and reliability.