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AAW Halcyon
Halcyon is AAW’s seven-driver tri-hybrid: four electrostatic super tweeters, two precision armatures and a 10 mm graphene woofer, in a shell machined from aerospace aluminium, with BassFlow to set the low end.
It is built for listeners who want a full-range monitor with physical bass and a clear, present voice: extended treble air, controlled weight below, and precise imaging across a large stage.
At a glance
7075 aluminium shell · BassFlow Control · Thera cable

Drivers
Halcyon was designed to draw everything from its quad electrostatic super tweeter, and to cure what usually follows one into a hybrid: low sensitivity, arrivals out of step, and phase conflicts between the drivers.
Two precision balanced armatures lock in the voice and the midrange; a 10 mm graphene-diaphragm woofer carries the weight of the bass. A 4-way passive and acoustic crossover divides the spectrum cleanly between them and hands each band on in phase. It moves air like a dynamic, resolves like an armature and extends like an electrostat.

BassFlow
BassFlow Control regulates how much air reaches the dynamic woofer, through a tuning plate built into the body. In doing so it shapes both the amount of bass and its texture, independently of the crossover.
Halcyon has three settings, set with the BassFlow filters in the box, with up to 10 dB between them.

Enclosure
The shell is machined from 7075 aerospace-grade aluminium alloy: compact, with a controlled, industrial finish. Its design was wholly digital. AAW simulated the placement of each driver and of the nozzle through hundreds of iterations to settle the phase and the response, and the sound leaves through three bores.

In the box
Halcyon comes with our Thera cable in monocrystalline silver, the cable AAW pairs with Halcyon, with 0.78 mm 2-pin connectors. Choose the player plug when you order: 2.5 mm or 4.4 mm balanced, or 3.5 mm single-ended.
Together they give a large, lifelike, three-dimensional stage, with each instrument cleanly separated and placed, and fine definition in the voice.
Compare
Two AAW hybrids with electrostatic super tweeters. Halcyon has four of them, two armatures and BassFlow Control in an aluminium shell; POLA pairs two with a single large graphene woofer.
| Feature | Halcyon | POLA |
|---|---|---|
| Drivers | 4 electrostatic + 2 BA + 10 mm graphene dynamic | 2 electrostatic + 13 mm graphene dynamic |
| Crossover | 4-way passive and acoustic | TrueXross 2-way |
| Bass control | BassFlow Control, 3 settings | Vented dynamic driver |
| Impedance | 24 Ω | 12 Ω |
| Sound bores | Triple bore | Dual bore |
| Cable | Thera silver; 2.5, 3.5 or 4.4 mm | Null Audio Tiburon UPOCC copper |

In the box
Specifications
Questions
It regulates the air that reaches the dynamic woofer, which sets both the amount and the texture of the bass. Halcyon has three settings, chosen with the BassFlow filters in the box, with up to 10 dB between them.
Seven drivers per side: four electrostatic super tweeters for the treble, two precision balanced armatures and a 10 mm graphene-diaphragm dynamic woofer, joined by a 4-way passive and acoustic crossover.
Halcyon has recessed 0.78 mm 2-pin sockets. Choose Standard 2-pin (0.78 mm) on any of our cables; see the AAW cable guide.
Yes. Halcyon Custom has the same seven drivers and BassFlow Control in shells made from your ear impressions; see how to order custom IEMs.
Halcyon has a 1-year warranty on the monitors and the cable. Unused universal IEMs in their original packaging can be returned within 14 days of confirmed delivery, with a 30% restocking fee. See shipping and returns.
Yes. Most countries get free shipping by EPAC, and FedEx Priority is free on orders of USD 250 or more. In Singapore you can also pick up from our studio at 76 Playfair Road.
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