Live now · 19 systems scored
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.
Tom's living room
Hegel H120 → KEF LS50 Meta + REL T/5x
Reference build
Cambridge CXA81 Mk II → KEF Q7 Meta + REL T/5x
Quiet loft
Rega Planar 6 → Naim Nait 5si → ProAc Tablette 10
Desk headphones
Topping E50 → Topping A90 → Sennheiser HD 660S2
01 · How it works
Three steps, one verdict.
Build a system in the wizard, see whether the components are in sync, and pick your next move with confidence. The same physics-grounded check on every system.
Step 01
Build in seven steps.
Pick your output topology, then a brand and model for each component. Search-as-you-type covers 218+ components across 74 brands.
Step 02
Score, by physics.
Signal grades the electrical synergy — has the amp got the power, does the match hold, is every connection in place. Room grades the placement. Character describes how it sounds. You see what's strong, what's compromised, and what to fix.
Step 03
Compare to neighbours.
See systems built from the same parts in different rooms — or different parts toward the same goal. Find your upgrade path without the second-guessing.
02 · Featured systems
Three paths, scored.
Real builds across different rooms, scales and needs — scored by the same physics every time.
@editorial·Reference build
Tom's living room
Hegel H120 → KEF LS50 Meta + REL T/5x
@editorial·Reference build
Reference build
Cambridge CXA81 Mk II → KEF Q7 Meta + REL T/5x
@editorial·Desk-side
Desk headphones
Topping A90 → Sennheiser HD 660S2
See all 19 systems →
03 · What we believe
Three rules, not negotiable.
Hi-fi is a $50 billion industry that runs on adjectives. We’re trying something simpler: numbers anyone can verify, sources anyone can read, and a refusal to call anything “synergy” without showing the math.
01 · Sourcing
Cite or stay silent.
Every spec on every component points back to a primary source. If we can't trace it, we don't post it. Two-tier confidence: manufacturer-confirmed vs. reputable secondary.
02 · Authorship
Built by audiophiles.
Not marketing. Not affiliates. Real measurements, real listening rooms. The Hegel-into-KEF combo on this page is the one our editor runs every weekend.
03 · Origin
EU-originated.
Pricing in euros, availability checked against EU distributors, brand presence weighted by what you can actually buy here. Global network coming soon.
How we score.
Synergy is a deterministic readout of physics-grounded checks — a Signal master that powers the headline score, with separate Room and Character masters alongside. The same rubric runs on every system — curated or community. No opinions, no editorial nudges, no surprises. See every check, by master, with the math behind each.