Est. 2026 · Warsaw · Building in public
Synergy,
grounded in physics.
The first hi-fi recommendation engine grounded in physics, not opinions. For newcomers, upgraders, and audiophiles who want answers — not arguments.
— Manifesto
Hi-fi is a $50 billion industry with worse buying advice than it had twenty years ago.
Forums are noisy. Reviewers are biased. ChatGPT hallucinates. Dealers push margin.
We’re building the first recommendation engine that cites its sources, models your room, and refuses to guess — because synergy isn’t mystical. It’s physics, measurements, and honest matching.
— What we’re building
01 · Compatibility
Match before you buy.
Enter your amplifier, speakers, DAC, headphones. We flag impedance mismatches, power gaps, and gain-staging issues — with citations to manufacturer datasheets.
02 · Room
Sketch your space.
Draw your room, place speakers and seat. We predict bass modes, boundary effects, and listener nulls — before you measure a single thing.
03 · Recommendations
Source-cited suggestions.
Gear suggestions tuned to your room and music — every claim labelled with confidence level. No hallucinations, no marketing copy in disguise.
— Principles
Cite or stay silent.
Every recommendation labelled high-confidence (physics-based), medium (community-aggregated), or low (subjective). If we can't cite it, we don't claim it.
Built by audiophiles, for audiophiles.
No SaaS-pretty oversimplification. Real specs, real measurements, real EU brands you actually own — Hegel, Pro-Ject, Dynaudio, Marantz, KEF, and the rest.
EU-localized from day one.
Knows European brands, dealer networks, and second-hand prices on Ricardo, OLX, and HiFiShark — not just Audiogon's American catalogue.
— Behind the project
Piotr Dziubecki
Audiophile, builder, and founder at Defdone. Started HiFiSync after spending one too many weekends sifting through forum threads to figure out whether two pieces of gear would actually work together.