Brise Audio official store can ship worldwide.

BSEP for IE900 earphone re-cable tuned exclusively for Sennheiser IE900 earphones

柔軟性の高い新型線材を8芯構成で用い、IE900の特徴である伸びのある高域に合わせ、 独自の音質チューニングを施しました。IE900のための専用音質設計リケーブルです。 製品化前のBriseAudio新作ケーブルを採用することで非常に柔らかな8芯構造を実現しております。

更に、独自の高音質設計を施し防振施工およびCNT(カーボンナノチューブ)や 新型素材であるBSシートを採用することで、微細音までも繊細に再現することを可能にしました。


Through repeated joint tests and comparative listening tests conducted by the three parties, including cooperating material manufacturers, we have been able to develop a new product that is a perfect match for our customers' needs.
We have developed optimal materials.
Typical properties of CNTs include
20 times stronger than steel, 10 times more thermally conductive than copper, and half the density of aluminum.
Excellent shielding ability. Various other useful physical properties.   
(The properties of CNT [Carbon Nanotubes] can change depending on the single-phase or multi-layer structure.)

Adopted cable slider

All processes are performed and manufactured in Japan. It also has an effect as a vibration stabilizer. Various materials are considered and adopted.

BriseAudio original L-shaped plug

BriseAudio's original L-shaped plug has been developed to improve sound quality and convenience. The result is a high-quality plug with not only excellent sound quality, but also a very high quality feel and comfort of use.

Product line-up

BSEP for IE900- 5-pole Φ4.4mm plug [Model Number: BSEPIE900-544MX] JAN: 4589796708377
BSEP for IE900- 4極Φ2.5mmプラグ 【型番:BSEPIE900-425MX】JAN:4589796708384
BSEP for IE900- 3極Φ3.5mmプラグ 【型番:BSEPIE900-335MX】JAN:4589796708391
BSEP for IE900- 4-pole Φ3.5mm plug [Model No.: BSEPIE900-435MX] JAN: 4589796708407


 製品名BSEP for IE900
ConductorHigh-functionality high-purity copper conductor
Conductor structureW-Quad Spiral構造  
special processing-
Isolationspecial high-functionality resin
TerminalIt depends on each specification.
Warranty period1 year

 *Please note that some specifications may be changed without prior notice for the purpose of product improvement. We appreciate your understanding.

The grades supported by BSEP for IE900 are

Dedicated cable × Dedicated tuning

The cable grade of BriseAudio is
 線材のグレード × チューニング加工のグレード
is determined.



BSEP for IE900 Listening Equipment Deployed Stores

We are continually expanding the number of stores where you can audition our product. If there are no stores nearby where you can listen to our product, it is also possible to lend it directly (within Japan).
Despite the equipment being available, if the demo cables are not out in the store, please ask the store staff.

◆e-Earphone Akihabara Store 
〒101-0021 東京都千代田区外神田4-7-1 新東ビル TEL(ナビダイヤル):0570-06-1118(受付時間 11:00 ~ 20:00)
(4.4mm to IE900)

Fujiya Avic
Postal Code: 164-0001, Nakano 5-52-15, Nakano-ku, Tokyo, 3F Nakano Broadway, Tel: 0120-189-248
(4.4mm to IE900)


Please feel free to contact us, including inquiries about our products.


This is a service that allows you to listen to the music in your own home. This service is available only for residents in Japan.


Go to the BSEP for IE900 purchase page.

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