Every product ships with its own measured frequency response - no marketing curves
REF-1 · Planar magnetic
An 80mm planar driver with a 1.8-micron diaphragm, ±3dB from 20Hz to 20kHz, 385g on the head. Every unit is measured on a GRAS 45CA rig and ships with its own curve.
AX-REFHEA-012016Founded in Portland
±0.5dBChannel match, every unit
10 yrsSpare parts stocked
12Products in catalogue
4.7 / 57,623 verified reviews
01 / Catalogue
02 / Compare
Every figure below comes off the same bench in Portland, so the columns are comparable line for line.
| Specification |  AX-REFHEA-01Axiom REF-1 Reference Headphones$1,299Rated 4.9 out of 5 from 418 reviews |  AX-WIREAR-02Axiom AE-5 Wireless Earbuds$299Rated 4.7 out of 5 from 1264 reviews |  AX-STUMON-03Axiom SM-8 Active Studio Monitor$899Rated 4.8 out of 5 from 237 reviews |
|---|---|---|---|
| Transducer | 80mm planar magnetic, 1.8µm diaphragm, symmetric neodymium array | Driver11mm bio-cellulose dynamic, dual-magnet motor, ±2dB to Harman 2019 IE | Drivers8-inch coated pulp woofer, 1.1-inch silk dome tweeter on waveguide |
| Frequency response | 6Hz - 50kHz; ±3dB, 20Hz - 20kHz on GRAS 45CA | Noise cancellingHybrid feedforward/feedback, up to 42dB at 100Hz; 0.1s transparency | AmplificationClass-D bi-amp, 140W LF + 80W HF, 2.1kHz crossover |
| Impedance / sensitivity | 32Ω nominal, 98dB/mW - drivable from a phone, better from 250mW | Battery8h ANC on / 11h off; 31h with case; 10 min charge = 2h playback | Response / SPL38Hz - 24kHz ±3dB anechoic; 104dB SPL max at 1m |
| Distortion / matching | <0.15% THD at 94dB SPL, 100Hz - 10kHz; ±0.5dB channel match | Codecs & latencyLDAC 990kbps, aptX Adaptive, AAC, SBC; 30ms game mode | Room correction96kHz DSP, 8-band parametric EQ, USB measurement mic included |
| Weight & cable | 385g without cable; 2m OFC with 4-pin XLR and 3.5mm TRS terminations | Build4.9g per bud, IPX5; USB-C PD and Qi 2 case, six-mic array | InputsBalanced XLR, TRS, AES3 - 24-bit/192kHz; 14.2kg per cabinet |
| Product pages | Full spec sheet | Full spec sheet | Full spec sheet |
Scroll sideways to compare →
03 / How we build
Every unit ships with its own test sheet - response, THD and channel match.
Parts and labour for five years, with spares stocked for ten after launch.
The person who replies to your ticket has the schematic open in front of them.
Fig. 01Anechoic measurement chamber at Axiom Portland
The Lab
Every Axiom product is characterised in our anechoic chamber in Portland - frequency response, THD at 94dB SPL, group delay, and for displays a 1,000-patch ΔE report. The numbers go on the product page whether or not they flatter us.
Inside the measurement lab
Fig. 02Exploded view of the Axiom Slate Ultralight chassis
Serviceability
The Slate Ultralight opens with a single T5 driver. The battery, SSD, fans and both USB-C boards are modules you can order from us at cost for ten years after launch, with the service manual free to download.
Repair and spare parts04 / Latest revisions
The most recent hardware out of the Portland lab, including the D27 Pro mini-LED display and the revised AE-5 earbuds with LE Audio. Every product here shipped in the last two quarters and carries a current firmware baseline.
AX-MECKEY-04
75% gasket mount, hot-swap
Layout & mount 75%, 82 keys, gasket-mounted PC plate, 6.5° typing angle
Rated 4.8 out of 5 from 872 reviews
AX-DESDOC-11
11 ports, 140W PD, fanless
Host link Thunderbolt 4, 40Gbps, 140W USB-C PD 3.1 to the notebook
Rated 4.5 out of 5 from 361 reviews
Launch priceSaleAX-4KDIS-06
27-inch mini-LED, 144Hz, ΔE<1
Panel 27-inch IPS Black, 3840×2160 at 163ppi, 144Hz, 10-bit (1.07B colours)
Rated 4.7 out of 5 from 306 reviews
BackorderedAX-MIRCAM-08
44MP stacked full-frame, 8K30
Sensor 44.2MP BSI stacked full-frame, 14-bit readout, 1/250s electronic scan
Rated 4.8 out of 5 from 141 reviewsAX-STUMON-03
8-inch two-way, DSP room correction
Drivers 8-inch coated pulp woofer, 1.1-inch silk dome tweeter on waveguide
Rated 4.8 out of 5 from 237 reviews
Travel bundleSaleAX-TRAEAR-12
9.2mm dynamic, 44-hour system battery
Driver 9.2mm dynamic, PEEK + TPU composite diaphragm, +2dB bass shelf vs AE-5
Rated 4.5 out of 5 from 1507 reviewsNewAX-WIREAR-02
11mm dynamic, 42dB adaptive ANC
Driver 11mm bio-cellulose dynamic, dual-magnet motor, ±2dB to Harman 2019 IE
Rated 4.7 out of 5 from 1264 reviews
AX-SMAWAT-05
LTPO AMOLED, 14-day battery
Display 1.5-inch LTPO AMOLED, 466×466, 1-60Hz adaptive, 2,000 nits peak
Rated 4.6 out of 5 from 593 reviews05 / Owners
I mixed on a matched pair for eight months and checked the results against a mastering room I trust. The low end translated within a decibel. The DSP correction sweep took four minutes and fixed a 6dB null at 120Hz I had been compensating for by ear for two years.
Priya R.Portland, ORApril 2, 2026
I flagged a 0.4dB channel mismatch on my REF-1s - within spec, but it bothered me. The acoustics lead replied with the driver serial history attached and shipped a tighter-matched pair the next day. I have never had a support exchange like it.
Daniel O.Chicago, ILMarch 15, 2026
Verified against my own i1Display Pro and the factory report held up across the full P3 sweep. My only complaint is that the local dimming blooms slightly on white text over black at 1,600 nits - switch the HDR profile to 600-nit reference and it disappears.
Mei-Lin C.Vancouver, BCFebruary 21, 2026
Three years on my Slate the battery was down to 79% health. Ordered the cell from Axiom at $48, downloaded the service manual, eleven screws and one connector. Back to full runtime for the price of a dinner. No other laptop I own would have let me do that.
Tobias K.Austin, TXJanuary 9, 2026
The Test Sheet
Measurement write-ups, firmware release notes and teardown photos. No countdown timers, no flash sales - you can unsubscribe from the footer of any issue.
support@axiomaudio.example
