Shipped from Singapore; delivery options and costs shown at checkout Free FedEx Priority over USD 250 Handmade in Singapore since 2008

Halcyon Electrostatic Hybrid In-Ear Monitor

AAW Halcyon is a universal-fit electrostatic hybrid in-ear monitor from AAW (Advanced AcousticWerkes), worn with standard ear tips. It has detachable recessed 0.78 mm 2-pin sockets and comes with our Thera monocrystalline silver cable, with the player plug of your choice.

Four electrostatic super tweeters, two precision balanced armatures and a 10 mm graphene-diaphragm woofer on a 4-way crossover, in a 7075 aluminium shell, with BassFlow Control for three bass settings.

  • 4 EST + 2 BA + 10 mm graphene
  • BassFlow Control
  • 7075 aluminium shell
  • Thera cable
  • 2.5 · 3.5 · 4.4 mm
Cable termination
  • In stockShips from our Singapore studio
  • 14-day returnsUnused, in original packaging · conditions apply
  • 1-year warrantyOn the monitors and the cable · then half price for life
  • AAW, SingaporeChat and phone support
Electrostatic air. Graphene weight.

AAW Halcyon

Electrostatic air. Graphene weight.

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.

  • 7 Drivers: four electrostatic, two balanced armatures, a 10 mm graphene woofer
  • 3 BassFlow settings, up to 10 dB apart
  • 4-way Passive and acoustic crossover
  • 24 Ω Impedance

At a glance

The build behind the listen

AAW Halcyon

7075 aluminium shell · BassFlow Control · Thera cable

  • 4 ×Electrostatic super tweeters
  • 2 ×Precision balanced armatures
  • 10 mmGraphene dynamic woofer
  • BassFlowThree bass settings

Key features

  • Quad electrostatic super tweeter
  • Dual precision balanced armatures
  • 10 mm graphene-diaphragm woofer
  • 4-way passive and acoustic crossover
  • BassFlow Control: 3 settings, up to 10 dB
Impedance
24 Ω
Total harmonic distortion
< 0.5%
Crossover
4-way passive and acoustic
Drivers
7 per side
Sound bores
Triple bore
Connector
0.78 mm 2-pin, recessed
Four Electrostats, Kept in Step

Drivers

Four Electrostats, Kept in Step

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.

The Bass, Set by Air

BassFlow

The Bass, Set by Air

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.

Machined From Aerospace Aluminium

Enclosure

Machined From Aerospace Aluminium

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.

Thera Cable Included

In the box

Thera Cable Included

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

Halcyon vs POLA

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.

Halcyon vs POLA
FeatureHalcyonPOLA
Drivers4 electrostatic + 2 BA + 10 mm graphene dynamic2 electrostatic + 13 mm graphene dynamic
Crossover4-way passive and acousticTrueXross 2-way
Bass controlBassFlow Control, 3 settingsVented dynamic driver
Impedance24 Ω12 Ω
Sound boresTriple boreDual bore
CableThera silver; 2.5, 3.5 or 4.4 mmNull Audio Tiburon UPOCC copper
Ready to listen

In the box

Ready to listen

  • AAW Halcyon in-ear monitors One pair
  • Thera monocrystalline silver cable 0.78 mm 2-pin
  • Player plug 2.5, 3.5 or 4.4 mm, chosen at order
  • BassFlow Control filters For the three bass settings
  • Genuine leather carrying case
  • Ear tips 3 pairs silicone, 3 pairs foam
  • Cleaning tool
  • Owner’s Club card

Specifications

Technical details

Monitor
Type
Universal-fit electrostatic hybrid in-ear monitor
Drivers
Four electrostatic super tweeters, two precision balanced armatures, 10 mm graphene-diaphragm dynamic woofer
Crossover
4-way passive and acoustic
Bass control
BassFlow Control: 3 settings, up to 10 dB swing
Sound bores
Triple bore
Impedance
24 Ω
THD
< 0.5%
Enclosure
7075 aerospace-grade aluminium alloy, machined
Connector
0.78 mm 2-pin, recessed, detachable
Cable
Cable
Thera, monocrystalline silver
Player plug
2.5 mm or 4.4 mm balanced, or 3.5 mm single-ended; chosen at order
Service
Warranty
1 year, on the monitors and the cable
Returns
14 days from delivery, unused and in original packaging; 30% restocking fee, shipping not refunded. Defects are covered by the warranty.
Ships from
Singapore
  • 5 stars: 1 (50%)
  • 4 stars: 0 (0%)
  • 3 stars: 1 (50%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
D
Daeho J. (Incheon, KR)
Good Sound / Bad Fit

First of all, I am using Canary, a flagship product of the same AAW company..
I feel very high performance for the price, so I am very satisfied with the sound performance.

However, as a product that is worn only as an audio device, I think the fit is also an important factor.

This design will be very much like and dislike to Asians, and it is more of a fit factor than an aesthetic part.

I have introduced it to many people and almost all of them complained of having pain.

No matter how good the product is, listening to music with pain is not an easy task.

It is unfortunate that good products set standards only for European and British Americans.

J
Johnson (Singapore, SG)
Halcyon Electrostatic Hybrid In-Ear Monitor

The Halcyon painted a perfectly black background, has a smooth midrange and a nicely clean top-end. Wide soundstage and instrumental separation and placement are excellence. Hearing new musical instruments especially on the treble for the first time and bass response is very good on Norm filter too. Highly recommended.

J
Johnson

Is the included Thera Monocrytalline IEM cable same as AAW There MKII UP-OCC Cryo Silver IEM cable?

Thanks

Null Audio

Yes, the same cable, Thera MKII.

Questions

Good to know

What does BassFlow Control do?

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.

What is the driver configuration?

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.

Which cable fits Halcyon?

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.

Is there a custom version of Halcyon?

Yes. Halcyon Custom has the same seven drivers and BassFlow Control in shells made from your ear impressions; see how to order custom IEMs.

What warranty and returns apply?

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.

Do you ship worldwide?

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.