Eko Stealth Black: Test of the amp range that focuses on simplicity

Five combos lined up on the workbench, a guitar plugged in, and not a single screen to turn on. The Eko Stealth Black range does something quite bold in 2026: it doesn’t try at all to reinvent the guitar amp. You plug in your jack, turn three or four knobs, and you play. And I’ll be honest, that felt really good.

I had the G-BS15 and the G-BS35 in my hands for the video, and I went through the rest of the range right after. Here’s what these transistor guitar amps have under the hood, model by model.

Eko Stealth Black: five combos, one idea

Behind this range, there’s a name that matters. The Stealth Black combos were developed by Eko in collaboration with Roberto Tittarelli, an Italian technician whose background I really encourage you to check out. And beware, simple amp doesn’t mean simple sound at all.

The concept runs from 10 to 50 W. The higher you go in the range, the more options open up, but the front panel logic stays the same from first to last: you see everything at a glance, you understand it all in ten seconds. The five models share the same technical base.

• A transistor technology, with a sharp attack and a direct response to the pick
• A 3-band EQ (bass, mid, treble) across the whole range
• An all-black aesthetic, discreet on stage as well as in a living room
• Powered by a power adapter, no external block to drag around

The G-BS10 and the G-BS15, the two bedroom formats

G-BS10: 10 W, one channel, and that’s it

The starting point of the range is the G-BS10. This one is the little baby. Ten watts, a 5-inch speaker, a single channel with gain, bass, mid and treble, and still a 6.35 mm jack headphone output. It’s really the practical little beginner amp: compact, light, easy to understand, nothing superfluous.

2.8 kg on the scale and 270 x 260 x 175 mm in size means it lives on a desk corner or under a shelf without anyone noticing. For working on your chords at night with headphones, it’s exactly what you need.

It’s the smallest in the family, and it fully assumes its role: learn, practice, progress. The 5-inch speaker reacts well to touch at home volume, and the gain already lets you discover the difference between a clean sound and a more aggressive grain.

G-BS15: the second channel arrives

This was the first one I had with me for the video. Fifteen watts, a speaker that’s already 8 inches, and especially two channels: a clean and a drive, selectable with a switch. You also get an auxiliary input in 3.5 mm mini-jack to play a backing track from your phone or computer. For working at home at a reasonable volume, it really has everything you need.

The clean channel, I found it clean, beautiful, clear. Open chords stay readable, arpeggios don’t smear. And when you switch to drive, you get a direct grain, well shaped for riffs and power chords. The master volume lets you dial it all in without waking the building.

Gain, 3-band EQ, master volume and a clean / drive selector: the front panel fits in one sentence. The 8-inch speaker gives real body in the low mids, and the 4.8 kg can be carried with one hand.

The G-BS25, when the effects loop comes into play

Starting with the G-BS25, we change category. Twenty-five watts, a 10-inch speaker, and this time a built-in reverb that adds air to everything you play. You can also plug in a footswitch to switch from clean to drive channel live, without letting go of the instrument.

And these little rascals have already added an effects loop. That’s rare to find on amps of this size. Basically, it means that in your pedalboard, you plug your drives and distortions before the amp, and keep your delays and reverbs for the loop. You stay plug and play, but nothing stops you from building a real pedalboard.

This is the model where the range shifts. Reverb, effects loop and footswitch connection all arrive at once, on a 7.8 kg combo that you can still carry under one arm. For home demos and small rehearsals at controlled volume, it’s a very good balance point.

What the G-BS35 says about the whole Eko Stealth Black range

I also had this one with me, and personally I think it’s probably the model that best explains the Stealth Black philosophy. We move up to 35 W with a real 12-inch speaker. We keep the two channels, reverb, effects loop and footswitch connection.

And now, look at the front panel. Even with all these knobs, it remains completely understandable: volume and gain for the saturated channel, volume for the clean, a 3-band EQ, the reverb, and that’s it. I want a clean sound, I adjust my volume and EQ. I want crunch, I switch to the second channel and turn up the gain. I want some space, I play with the reverb.

The 12-inch speaker brings presence in the low mids that a small speaker can’t provide, and you hear it right away in rehearsal: the guitar holds its place without you needing to push the volume. I admit that sometimes, especially for me as a demonstrator, it’s nice not to need a 180-page manual just to find a guitar sound.

Thirty-five watts, 12 inches, two channels and a front panel you can read at a glance. Clean has definition on chords as well as arpeggios. Crunch responds to the pick without closing up. It’s the one I’d keep if I had to choose just one.

The G-BS50, the one that leaves the bedroom

We have one last for the road, or rather a big last one: the G-BS50. Same philosophy as the G-BS35, but this time we move up to 50 W, still with a 12-inch speaker, two channels and reverb. The difference is that here you find two instrument inputs in 6.35 mm jack: a High input for passive pickups, a Low input for active pickups. Enough to optimize your input level depending on the guitar you plug in.

Here, we clearly leave the learning amp territory. Eko positions it really as a studio and stage amp, and the 14.7 kg for 515 x 420 x 265 mm confirms it: it’s a combo you load into a trunk, not one you put on a desk. In a club or café-concert, the power reserve and 12-inch speaker do the job against a drum kit.

Fifty watts, two instrument inputs, reverb and effects loop: it’s the model that owns the stage. The Drive channel remains accessible by foot via the footswitch, and the loop lets you build your ambience chain properly for live.

Why an Eko Stealth Black amp feels good in 2026

Today, digital amps have become absolutely incredible. Hundreds of sounds, effects, presets, apps, forums to exchange settings: it’s an enormous wealth, and I’m the first to take advantage of it. And then there are those moments when you just want to play, plug in and cut yourself off from the world. The Eko Stealth Black range is exactly made for those moments.

That’s also why the progression of the range makes sense. You can start with a 10 or 15 W Stealth Black in your room, and find exactly the same front panel logic, much more advanced, the day you play in a band with the 50 W. Nothing to relearn between the two.

There you go, five amps in 10, 15, 25, 35 and 50 W, which become progressively more complete as you move up the range, but all keep the same idea: one jack, a few knobs, and sound. Honestly, in 2026, going back to something this direct feels good.

You’ll find the whole Eko Stealth Black range and the rest of the section on the guitar amps page. And if you have questions about a particular model, leave me a comment under the video. With that, I say to your amps, work well and see you soon!