German engineering. The mere phrase makes even a Finnish man fall silent in respect. Sennheiser has been making headphones and microphones since 1945, and the Momentum series is their consumer flagship. Valco, on the other hand, is a 14-person company trying to fund the Death Star and Henri’s Ferrari dream.
The comparison sounds unfair. But hear us out.
Sound quality – we’re in the same league here
Momentum 4 is a good headphone. Sennheiser’s sound has traditionally been neutral and analytical, and the Momentum 4 continues this line. The sound is clean, precise, and pleasant.
The VMK25.2’s sound has been tuned by Jasse Kesti, whose ears are insured — though we won’t say for how much, because it would be embarrassing for the rest of us. Jasse’s philosophy is simple: the frequency response must be flat and the sound should be what the artist intended. No bass cannon, no artificial brightness. The VMK25.2’s frequency response is very even, and the 45-millimeter composite drivers do their job.
In practice? Both sound really good. Sennheiser has decades of reputation; Valco has Jasse. We’d say we’re on equal footing — but of course we’re biased.
Noise cancellation (ANC)
Momentum 4’s ANC is good. VMK25.2’s ANC is good. Neither is the absolute king of the market — that title goes to Sony or Apple, let’s admit it straight away.
Both remove low frequencies effectively: the drone of an airplane, office air conditioning, the ticking of Henri’s Alfa Romeo engine. Neither will completely remove children’s screaming or a coworker’s nagging. Such headphones haven’t been invented yet, even if there’s demand.
The Momentum 4 has adaptive ANC that adjusts itself according to the environment. The VMK25.2 has three modes: ANC on, transparency, and off. Simple. It works.
Battery and practical features
This is where the VMK25.2 has the edge:
- VMK25.2: 55 hours with ANC on, 95 hours talk time
- Momentum 4: about 60 hours with ANC on
Battery life is so long on both that it hardly matters. Whether you charge once a week or every two weeks — either will last.
Multipoint is on both. Bluetooth 5.4 on the VMK25.2, 5.2 on the Momentum 4. Both support the aptX codec. In practice, you won’t notice a difference.
Price — and here’s where it gets interesting
Sennheiser Momentum 4 costs about 300–350 euros. VMK25.2 costs well under 200 euros.
Read that again.
You get essentially the same sound quality, the same level of ANC, and longer battery life — at half the price. With the difference you can buy beers for the whole summer or fund 0.000002% of our Death Star — enough for one extra pair.
Repairability — Valco’s trump card
This is where the contest ends. Sennheiser’s earpads wear out, and then you buy new ones — if they happen to be available. In the worst case, the whole headphone ends up in the trash.
The VMK25.2’s earpads come off with a twist. Bayonet mount, the swap takes five seconds. The side panels are magnetic and replaceable — or you can 3D-print your own. If something breaks, Jasse and the rest of the service team will repair the device in Kajaani. No landfill, no need to buy new.
Sennheiser doesn’t have a repair shop in Kajaani. Or anywhere else in Finland, as far as we know.
Who should choose Sennheiser?
Let’s be honest:
- Brand matters a lot to you. Sennheiser is Sennheiser. If you want a logo every audiophile recognizes, the Momentum 4 is a safe choice.
- You want Sennheiser’s app ecosystem. The Smart Control app is mature and versatile. Valco doesn’t have an equivalent.
- Adaptive ANC is important to you. The Momentum 4’s automatic adjustment is handy if you move between very different environments.
- You need headphones for representative use. The Momentum 4 looks expensive. Because it is expensive.
In these situations, Sennheiser is a good choice. We’re not claiming otherwise.
Summary
| | VMK25.2 | Momentum 4 |
|---|---|---|
| Sound quality | Excellent (Jasse’s tuning) | Excellent (Sennheiser tradition) |
| ANC | Good | Good, adaptive |
| Battery (ANC) | 55 h | ~60 h |
| Repairability | Fully repairable, in-house service | Limited |
| Price | ~170–200 € | ~300–350 € |
| Bluetooth | 5.4, aptX | 5.2, aptX |
| Weight | ~300 g | ~293 g |
Both are good headphones. Sennheiser has the name and history. Valco has Jasse, repairability, and a price that doesn’t require a loan.
If you have 350 euros and want German engineering — the Momentum 4 is a good buy. If you have 350 euros and want Finnish engineering, you buy the VMK25.2 and spend the remaining 150 euros on something sensible. Or give it to us. The Death Star won’t build itself.
By the way, Raimo reminds us that when talking about German engineering, the only correct answer is the Mercedes-Benz W124. Everything else is a compromise.
