HiFiMan Sundara Closed Back Damping Kit
£8.52
In stock (can be backordered)
Description
HiFiMan Sundara Closed-Back Headphones Damping Kit. Custom Upgrade for Enhanced Sound Quality.
Kit Overview
The HiFiMan Sundara Damping Kit has been specifically developed to address the pronounced mid-range response found in the Sundara closed-back headphones. For listeners who find the sound signature too forward in the mids, this kit offers a practical solution by subtly reducing the mid-range emphasis.
Kit Description and Installation
The kit consists of a precisely cut foam insert, designed to be placed inside the ear cup of the headphones. Installation is straightforward and can be completed with minimal effort. Making it accessible even to users with minimal experience in headphone modifications.
Important Notice
While the modification process is relatively simple, it is important to proceed with care to avoid potential damage to the headphones. The mod can generally be completed safely and quickly if instructions are followed attentively. However it should be noted that any damage incurred during installation is the responsibility of the user.
Professional Installation Service
For those who are hesitant about performing the modification themselves, there is an option to have the kit professionally installed. This service is available for a fee of £20 plus postage costs.
*foam colour shade may vary
Customer service and warranty
We know that you are paying a premium for our headphones. Which is why we make our headphones durable and reliable. But in the unlikely event that you do have an issue with them, please get in contact with us. We are happy to help you. We offer a full 2 year ‘return to base’ warranty, and we keep all spare parts in stock, so that we can also send replacement parts if necessary. Outside of the warranty period we still offer repairs on all our products for a fair price.
International orders
Close to 70% of our customers are outside of the UK, so we have a lot of experience with international orders and worldwide shipping. All packages over £50 have a form of international tracking.
– European packages normally take 4-6 days.
– US, AUS and Canada packages normally take 7-10 Days.
– Packages sent to the rest of the world can vary depending on local postal services.
– Packages shipping outside of the EU may be delayed in customs, but the tracking system should keep you updated of its progress.
(For customers outside of the UK only) Unfortunately, customs duties and fees may be charged when ordering from outside of the UK. This is outside of our control. we are NOT responsible for import duties. We will NOT write false information on a customs document in order to lower fees. All items have the UK tax removed and this will need to be paid by yourself when your item arrives at your local customs office. For a smoother process, please buy from our eBay store where VAT is paid at the same time: https://www.ebay.co.uk/str/customcans
Additional information
| Weight | 0.07 kg |
|---|---|
| Manufacturer |
5 reviews for HiFiMan Sundara Closed Back Damping Kit
You may also like…
-
- Sundara, Arya, Ananda, HE1000SE, Edition XS, Susvara-Gen-2, HE400i, HE4XX, cableAddOns, singleEnded, Cables, HiFiMan Cables, Denon cables, Hand made high end headphone and audio cables
Ultra-low capacitance litz cable for headphones that take 2 x 3.5mm TRS jacks Denon AH-D600, HiFiMan Sundara
- £80.00
- Select options

















Leon –
Simple, but so impactful! This mod have saved my impression of my new Sundara CBs.
rsmex (verified owner) –
Highly recommend this mod stopped me having to sell them reduced the mids which really helped one them thank you
Geoffrey Sawyer (verified owner) –
Pick up a pair of these for $129 new and with the mod, feels like a bargain.
Robert Clark (verified owner) –
A must buy for the HIFIMAN SUNDARA Closed-Back. get rid of that honky mid spike and makes them much easier to EQ.
Thank you for making this Mod Custom Cans.
Waldemar (verified owner) –
After replacing the original dampers with Custom Cans filters, my HIFIMAN Sundara truly came alive. The sound gained openness, clarity, and a wonderful sense of flow — it now feels effortless and full of life. Instruments breathe naturally, the bass is more controlled, and the whole presentation feels like listening to high-end speakers. Absolutely stunning upgrade — the best my Sundaras have ever sounded!
Waldemar
Ps. tested with FiiO BTR7,Samsung S24 Ultra and UAPP with Poweramp EQ (Oratory1990 profile).