Sennheiser HD25-II Headphones with Modified Cable and Drivers

This listing is for a custom pair of Sennheiser HD25-II headphones, modified by OIDIO SOUND. Only one in stock, so once sold will be gone!

This pair of Sennheiser HD25-II headphones comes with 2 custom modifications: there is mass loading on the drivers and small dampening to help tighten everything up, and the original stock cable will be modified with a source connector of your choice  (including balanced options) and sleeved in a colour of your choice. The cable length can also be cut back.

The stock cable is about 1.45m (it is sold as 1.5m by Sennheiser, but our measurement to the cable clamp is 1.45m), and can be made to that length or shorter. There are 24 paracord sleeve colours to choose from and we offer a range of source connector options, including standard TRS jacks, XLRs and newer balanced TRRS connection options. Please be aware that TRRS jacks are not compatible with non-balanced sources, e.g. 3.5mm TRRS will not work with a standard 3.5mm headphone out. For information about how we wire our 2.5mm and 3.5mm TRRS connectors please see our "Balanced and TRRS" page.

All our cables are soldered using lead-free silver solder (4% silver) to ensure the best quality joins for both signal and strength. The example images on our listings are as a guide only; any and all cable purchased may look slightly different to these example images.

These headphones come with a 1-year warranty. Pictures for example only, final cable may look slightly different. Original product code: 502842.

Current lead time: 5-10 working days (which is about 1-2 weeks as working days do not include weekends, bank holidays or other days we are closed). For approximate shipping times to your country check our FAQ.

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Sennheiser HD25-II Headphones with Modified Cable and Drivers

  • Brand: Sennheiser
  • Product Code: OHD-HD25
  • Availability: 1
  • £180.00


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Tags: sennheiser, modded, headphones, hd25-ii, pellucid-plus, 502842