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IEM Reshell Service by AAW · Custom Shells for Your IEMs

Turn the IEMs you already own into custom in-ear monitors. AAW moves their original drivers and crossover into new shells made from your ear impressions, with your choice of shells, faceplates and finish. From USD 219 for up to 4 drivers; ready 6–8 weeks after we receive your impressions.

  • BA, dynamic, hybrid and EST
  • Original drivers and crossover
  • Shells from your ear impressions
  • Live 3D preview
  • 30-day refit
  • 1-year warranty
Configure your reshell

Choose the driver count, shells, faceplates and finish below. The price updates as you go.

  • 6–8 weeksFrom receiving your impressions
  • 30-day refitIf the fit isn’t right
  • 1-year warrantyExcludes the original drivers
  • Impressions in SingaporeAt our studio, by appointment

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Your IEMs, made to fit you.

IEM Reshell Service by AAW

Your IEMs, made to fit you.

A reshell keeps the earphones you chose for their sound and rebuilds them in custom shells cast from your ears: a deeper seal, more isolation and a fit you can wear all day.

  • USD 219 From, for up to 4 drivers
  • 6–8 weeks From receiving your impressions
  • 30 days Free refit after delivery
  • 1 year Warranty on the reshell
What a Reshell Is

The service

What a Reshell Is

A reshell takes the drivers and crossover out of your universal or custom IEMs and builds them into new custom-fit shells made from impressions of your ears.

The custom shell seals better than universal tips, so you get more isolation, steadier bass and comfort for long sessions. Because the tubes and the fit change, the sound can shift slightly from the original.

Made Your Way

Design

Made Your Way

Choose the shell and faceplate colour for each side, an Atelier faceplate or your own artwork, the nozzle tips, the AAW logo finish and engraving, and watch it come together in the configurator’s live 3D preview.

Choose a recessed or flat 2PIN socket for the new shells.

Eligibility

Which IEMs Can Be Reshelled

Most universal and custom IEMs can: balanced armature, dynamic, hybrid and electrostatic (EST) designs. Customers have reshelled models such as the 64 Audio A18t, Thieaudio Voyager 14, Ultimate Ears Triple.Fi 10 and Sennheiser IE 900.

Damaged units, metal housings and unusual designs are checked case by case, so tell us the model before you send it.

Fit

Ear Impressions

In Singapore, we take ear impressions at our studio for SGD 50, in 10–20 minutes, by appointment through WhatsApp +65 8731 5476 or sales@null-audio.com.

Elsewhere, post physical impressions from a local audiologist, or email a 3D scan (STL) of your impressions or ear canals. How to order custom IEMs explains what a good impression or scan needs.

Compare

Price by driver count

The price depends on how many drivers your IEMs have. Options such as Atelier faceplates, artwork and engraving are added in the configurator.

Price by driver count
FeaturePriceOver the base
Up to 4 driversUSD 219Base price
5 to 9 driversUSD 259+USD 40
More than 9 drivers, or any EST driverUSD 299+USD 80
Back to you with

In the box

Back to you with

  • Your IEMs in custom shells Original drivers and crossover
  • Null Audio cable 1.2 m (46"), detachable
  • AAW carrying pouch For daily carry
  • Cleaning brush and cloth For the nozzles and shells

Craft and care

Process

How It Works

  1. Configure your reshell and place the order.
  2. Get ear impressions: at our studio in Singapore, or post physical impressions or email a 3D scan with your order number.
  3. Send us your IEMs, together with physical impressions if you have them.
  4. AAW builds your new shells in 6–8 weeks from the day we receive your impressions.
  5. We ship your reshelled IEMs back, or you collect them at our studio.

Shipping

Sending Your IEMs

Post your IEMs (and physical impressions) to Null Audio Studio, #01-03, LHK2 Building, 76 Playfair Road, Singapore 367996. Tel: +65 8731 5476.

Pack them in a hard case, and email support@null-audio.com with your order number and tracking. High-value items may incur import duty and tax, which is borne by the sender.

Care

Caring for Custom IEMs

Clear the nozzles with the brush after use and wipe the shells with the dry cloth. Keep them in the pouch, away from heat and moisture, and avoid alcohol-based cleaners on the faceplates.

If the fit isn’t right within 30 days of delivery, we refit them for free (overseas return shipping is charged separately).

Specifications

Technical details

Service
Provided by
Advanced AcousticWerkes (AAW), through Null Audio Singapore
Supported IEMs
Most universal and custom IEMs with balanced armature, dynamic, hybrid or EST drivers; checked before the build
Kept from your IEMs
Original drivers and crossover
New shells
Custom-fit, made from your ear impressions or 3D scan
Socket
Recessed or flat 2PIN
Lead time
6–8 weeks from receiving your ear impressions
Price
Up to 4 drivers
USD 219
5 to 9 drivers
USD 259
More than 9 drivers, or EST
USD 299
Ear impressions
In Singapore
At our studio, SGD 50, 10–20 minutes, by appointment
Elsewhere
Physical impressions by post, or a 3D scan (one STL file per ear) by email
Cover
Refit
Free within 30 days of delivery; overseas return shipping charged separately
Warranty
1 year limited, excluding the original drivers
Returns
Custom builds can’t be returned for a change of mind

Customer reviews

Rated 4.7 out of 5 from 113 reviews.

  • 5 out of 5 · JEREMY · 2026-09-17

    Great Reshell

    Reshell was done right for my 64 Audio A18t, recommended!

  • 5 out of 5 · Christian N. · 2025-01-09

    UE triplefi 10 reshelled

    When my triplefi iem's broke I didn't know what to do with them, they sounded really nice with comply foam tips and an upgraded null audio cable, so I thought I could fix them myself... But nope, there was no way to glue them back together so I put them away. I found them again last year, and this time I got my ears molded and sent them for reshelling. They are back, and better than ever! The fir is perfect, the sound is even better than when they were new (including the NA cable and comply tips)! I upgraded the cable so the monitors now look fantastic and sounds amazing! Sending and receiving them with FedEx was a breeze, everything was taken care of. Thanks for excellent support and service!

  • 5 out of 5 · K K. · 2024-11-23

    Aoraki MKIII Gold Silver Tri-Hybrid Headphone/IEM Cable

    I did a reshell of JH. It feels like I got a brand new IEM.

  • 5 out of 5 · KS H. · 2024-08-11

    Reshell A3H+Lux

    The reshell custom A3H+Lux had a perfect fit to the ears. There is no need to keep adjusting to the ear tips for good fit. The customised A3H+ Lux provides excellent and consistent sound isolation. The good seal gives better bass response and also consistent overall sound quality. I like it very much.

  • 5 out of 5 · Christian D. · 2024-07-18

    SE846 Reshell: WOW

    I'm not one to write reviews, but felt the need for this. Sent my SE846 for a reshell (not custom). They had the Trishd mod and sounded fantastic. Now, they sound even better... Blowing my best expectations out of the water. Folks, don't hesitate.

  • 5 out of 5 · Victor H.H. · 2024-05-21

    Reshell of Westone W60’s

    Null did an awesome job with the reshell of my W60’s. Solid work and what a big difference using these acrylic molds instead of foam inserts, great job Null!

  • 5 stars: 95 (84%)
  • 4 stars: 8 (7%)
  • 3 stars: 6 (5%)
  • 2 stars: 3 (3%)
  • 1 star: 1 (1%)
C
Christian N. (Skjærhalden, NO)
UE triplefi 10 reshelled

When my triplefi iem's broke I didn't know what to do with them, they sounded really nice with comply foam tips and an upgraded null audio cable, so I thought I could fix them myself... But nope, there was no way to glue them back together so I put them away. I found them again last year, and this time I got my ears molded and sent them for reshelling. They are back, and better than ever! The fir is perfect, the sound is even better than when they were new (including the NA cable and comply tips)! I upgraded the cable so the monitors now look fantastic and sounds amazing!
Sending and receiving them with FedEx was a breeze, everything was taken care of.
Thanks for excellent support and service!

K
K K. (Singapore, SG)
Aoraki MKIII Gold Silver Tri-Hybrid Headphone/IEM Cable

I did a reshell of JH. It feels like I got a brand new IEM.

K
KS H. (Singapore, SG)
Reshell A3H+Lux

The reshell custom A3H+Lux had a perfect fit to the ears. There is no need to keep adjusting to the ear tips for good fit. The customised A3H+ Lux provides excellent and consistent sound isolation. The good seal gives better bass response and also consistent overall sound quality. I like it very much.

V
Victor H.H. (Manchester, US)
Reshell of Westone W60’s

Null did an awesome job with the reshell of my W60’s. Solid work and what a big difference using these acrylic molds instead of foam inserts, great job Null!

J
Jeremy I. (Farmington, US)
Re-Shell Shure SE846

I sent in my Shure SE846’s to be re-shelled (custom molded) and they were sent back to me perfectly. Perfect fit, exactly what I ordered, and the craftsmanship is superb. Your engineers are exceptional. Thank you to you and your team and you have a customer for life!

T
Thomas J. (Basel, CH)
New life for Noble K10s - I wish I had done this a while ago!

I love my Nobles, but after a few years the universal shells (as beautiful as they are) were looking pretty shabby. I also had long noticed that, for my ears at least, bass response was significantly stronger when I pressed on the IEMs with a finger, as if the shells were radiating much of the power into the ether. This was NOT a function of the seal. I did not experience this, for example, with my Fiio FH7s with the same tips.

The work by AAW was first rate. And, to my delight, the bass has been greatly improved. No need to hold the IEMs firmly in place to get rumble and impact.

My only minor issue is that the acrylic used has a significantly redder tint than expected. Perhaps just a function of my monitor's color temperature. See the pics below - the ones I received (cabled) and the mock-up from NA's site. Still, 5 star product and 5 star service.

N
Nat (Singapore, SG)
Amazing Service despite multiple refits!

Reshelled an AAW W900. Quality of this reshell is fantastic! Unfortunately I had to get multiple refits for my left ear as the fit was not good, but the staff at the shop was very patient and helped me through the entire process! Thank you so much!

S
Samuel G. (Sydney, AU)
Stock N4s to lovely customs

My pair of 4 driver Noble Audio N4s sound just as clear and as big as I remember. The new cable is a tight fit and the moulds fit perfectly. The staff were super friendly and helpful throughout! I definitely will be doing business with these guys again soon.

C
Customer (Bournemouth, GB)
UE TF10 reshell

I sent my UE TF10 IEMs to Null Audio for a reshell service along with my in ear moulds, and received them back withing about 8 weeks. Communication with Null was good via email. I was not expecting such a high quality package. The parcel contained a high quality package, with all the contents in a material carry case. The case contained the left & right IEMs, a black twisted audio cable, carry pouch, microfibre cloth, airplane adapter, 6.3mm socket adapter, cleaning brush, and a AAW membership card. The IEMs themselves have an exceptional finish, and fit well. The sound quality is great so far. I use them in 2 configurations. Wired via Dragonfly Red usb DAC with my Pixel 4 XL phone, with USB Audio Player PRO app, which provides upto 24bit lossless playback of FLAC files. Sound quality is excellent here with great sound stage separation, bass response is punchy, strong mids, clear highs. Isolation is very good as expected, as the custom moulded shell fits exactly into each ear perfectly. I also use in a wireless configuration, with the Fostex TM-2 true wireless kit. The sound is not quite as good, as the max codec is AptX which is 16bit 356kbps playback. It's good enough though, for the portability, it offers great flexibility in many scenarios. Overall I am very pleased with the service and end product, I would highly recommend this to anyone who has a higher end universal IEM, to take your earphone to another level.

C
Calvin K. (Singapore, SG)
Reshell Shure SE846

Fit overall good, though at first a bit painful when put on and take out the earphones., sounds good after changing to a better cable. service very good.

V
Vinh
Wonderful Service, top notch craftsmanship

This was my first time using Null-Audio/AAW for their reshelling service, and I couldn't be happier with the results.

Null-Audio and AAW did an awesome job on reshelling a pair of used JH Audio JH13v2's to fit my own ears. With 8 drivers per side and my own small ear impressions to work with, AAW had difficult task. They went through several iterations to make sure both the sound signature and the cosmetic look of my earphones were perfect before they put their names on the final product. The result was spectacular: precious little pieces of art that fit my ears perfectly and sound sublime. Hats off to both Null Audio and AAW for their technical expertise, their craftsmanship, and their high standards.

A
Andrey A. (Moscow, RU)
AAW W900

I received this IEM 3 weeks ago. Its sound is purely fantastic. Sound signature is quite coherent and detailed, but absolutely inoffensive.

E
Eugene C. (Singapore, SG)
I'm So Disappointed

Fit was perfect, but the acrylic shell wasn't molded well on one side. The speaker canals weren't fully covered, so the centre part is just exposed rubber tubing I can prod with a fingernail. Sent it back for repair, and got it back 3 or 4 weeks later with what looked like varnish over the exposed part. Asked the staff what it was, and she said it was the same material as the rest of the shell. So I took her word for it and left it at that.

About a week later, I'm cleaning it again, and the repair flaked off. It was just varnish after all. Honestly, a small defect like this would be fine if it was a $100+ item, but it cost me $300+. I've decided not to send it in for any further work since it's just going to be varnish, but I'm very disappointed.

P
Peter S. (Weesp, NL)
Reshell of Ultimate Ears Triple.Fi 10

I have been using my Ultimate Ears Tripple.Fi 10 for years and now I have them reshelled. From order to the message of shipment was 10 weeks and then 3 weeks until receipt. So I was very curious about the end result. Well, I can now say that the waiting is worth it and that I am pleasantly surprised. The quality and finish are great. But more importantly, the sound quality is even better than the original. The in-ear monitors fit much better, which benefits the sound. The result is a better balance between low, middle and high. I can recommend this to everyone. Thank you very much Null Audio!

J
Justin W. (Singapore, SG)
AXH Reshell

The ear impressions were done professionally and they fit perfectly. The shells and faceplates are beautiful; amazing craftsmanship! Sound has notably improved as well, particularly the bass. Highly recommend this if you're looking to convert your universal iems to customs!

R
Rui H. (Shatin, HK)
AAW reshell service

Excellent build quality and finish. Fit is perfect 5/5. Highly recommended

Thank you, hope you enjoy it!

I
Isaac M. (Singapore, SG)
Awesome Reshells! Awesome Company!

I ordered the UE Triple Fi 10 Reshells for my son's birthday and he absolutely loves them. They fit great and look beautiful. We will do business with them again.

J
Joel T.
Aaw reshell service

This is my 4th time using this reshell service

What can i say! Am really happy with the quality of workmanship and the final product. Price is extremely competitive too

T
Tc
Very nice job

Got my ue triplefi 10 reshelled. Perfect fit and quality finished product.

H
HL

Hello I want to reshell my 64 Audio U6. Can you confirm you can reshell it with the ADEL module? Thanks.

Null Audio

Yes we can

Questions

Good to know

What is an IEM reshell?

A reshell moves the drivers and crossover of your existing IEMs into new custom-fit shells made from your ear impressions. You keep the earphones you chose, with the seal, isolation and comfort of a custom IEM.

Which IEMs can be reshelled?

Most universal and custom IEMs, with balanced armature, dynamic, hybrid or electrostatic (EST) drivers. Damaged units, metal housings and unusual designs are checked case by case: send us the model before you post it.

Will my IEMs sound the same?

The drivers and crossover stay the same, so the character of the sound stays. The new tubes and the deeper custom fit can shift it slightly, usually with more isolation and steadier bass.

How much does a reshell cost?

USD 219 for up to 4 drivers, USD 259 for 5 to 9 drivers, and USD 299 for more than 9 drivers or any EST driver. Faceplates, artwork and engraving options are priced in the configurator.

How long does it take?

6–8 weeks from the day we receive your ear impressions, plus shipping both ways.

How do I get ear impressions?

In Singapore, book a studio appointment by WhatsApp +65 8731 5476 or at sales@null-audio.com; impressions cost SGD 50 and take 10–20 minutes. Elsewhere, post physical impressions from an audiologist, or email a 3D scan (STL) with your order number to support@null-audio.com.

How to order custom IEMs

Where do I send my IEMs?

To Null Audio Studio, #01-03, LHK2 Building, 76 Playfair Road, Singapore 367996, with your order number. High-value items may incur import duty and tax, which is borne by the sender.

What if the fit isn’t right?

We refit them for free within 30 days of delivery. For overseas orders, return shipping is charged separately.

Can I reshell AAW IEMs I bought second-hand?

Yes. AAW ownership transfer reshells an AAW universal or custom IEM to the new owner’s ear impressions for a flat USD 150.

AAW ownership transfer

What is the warranty and return policy?

Reshells have a 1-year limited warranty that excludes the original drivers. Because every reshell is built to your ears, it can’t be returned for a change of mind.

Read the full return policy