Halvorsen
Halvorsen HP-90
Open-back planar headphones
$1,299
● In stock
Our reference planar: effortless detail without a hint of glare.
Pairing note Planar loads are current-hungry. Pair it with the Solstice or another desktop amp.
- 30-day home trial with a full refund and no restocking fee
- Free tracked shipping on orders over $99
- 5 years warranty, handled by us directly
Part of these matched rigs
Not sure it suits your setup? Mara on our advice desk answers pairing questions within a business day. Ask a question →
Full specifications
| Acoustic design | Open-back, over-ear |
|---|---|
| Transducer | 100 mm planar magnetic |
| Impedance | 34 Ω |
| Sensitivity | 98 dB/mW |
| Frequency response | 8 Hz to 48 kHz |
| THD | < 0.1% (1 kHz, 100 dB) |
| Weight | 455 g (without cable) |
| Cable | 2 m dual-sided OFC, 4.4 mm balanced + 3.5 mm adapter |
| Earpads | Lambskin over memory foam, user-replaceable |
| Warranty | 5 years |
Compare these numbers side-by-side on the comparison bench →
Why we stock it
The HP-90 is the headphone we reach for when a customer asks what “end-game” actually sounds like. The 100 mm planar driver keeps bass textured at any volume, and the stage is wide without sounding hollowed-out. It is genuinely current-hungry, though, so budget for a desktop amp and it will repay you for years.
Owner reviews
Rated 5 out of 5 ✓ Verified purchaseThe last headphone I'll buy for a decade
“I came in chasing detail and left understanding what people mean by “effortless.” Nothing sounds pushed. Paired with the Solstice as the store suggested. They were right about it needing real power.”
Rated 5 out of 5 ✓ Verified purchaseWorth the amp upgrade
“Sounded good from my old combo unit, sounds spectacular from a proper Class-A amp. The 30-day trial is what convinced me to try; the bass texture is what convinced me to keep.”
Rated 4 out of 5Heavy, but you stop noticing
“455 g is real, and the first week I felt it. Then the clamp settled and now it disappears. Sound is beyond criticism at this price. Knock a star off for the stiff stock cable.”
