Suggested TrueScale comparisons
Tap any speaker to see it beside this one at true, real-world scale.
Amphion · Helium · Bookshelf
Helium 510
TrueScaleLine this speaker up next to another at its real-world size.TrueSpecsPut this speaker's full spec sheet beside up to three others.HiFi LadderJump to this speaker's spot on the HiFi Ladder, ranked by size.
Product description
Entry bookshelf in Amphion's Helium line, handmade in Finland. A 5¼-inch paper mid/bass meets a 1-inch titanium tweeter set in Amphion's U/D/D waveguide for controlled dispersion; rear-ported.
Suggested TrueScale comparisons
Tap any speaker to see it beside this one at true, real-world scale.
Units
| Type | Bookshelf |
|---|---|
| HiFi ladder position | #70 of 255 bookshelf |
| Power | Passive |
| Height | 316 mm |
| Width | 160 mm |
| Depth | 265 mm |
| Weight | 6 kg |
| Enclosure | bass-reflex-rear |
| Drivers | 1× 25 mm tweeter (titanium dome), 1× 133 mm mid-bass (paper cone) |
| Crossover frequency | 1600 Hz |
| Frequency response | 48–25000 Hz |
| Sensitivity | 86 dB |
| Impedance | 8 Ω |
| Recommended amp | 20–100 W |
| MAP (USD) | $1,560 / pair |
| Where to buy | Check availability ↗ |
| Manufacturer | amphion.fi ↗ |
| Product page | Open product page ↗ |







