When your audio headphones start to feel less comfortable or sound less clear, the problem often isn't the driver. Worn earpads, a damaged cable, or the space between pad and driver can each change the experience. The right spare part can save you from buying a whole new pair. The challenge is matching the part to the model you own.
Quick Take
Every repair job here targets a different part of the audio signal path. The Dekoni Audio Choice Leather Replacement Earpads are for Bose QC Ultra owners who want to restore the noise-canceling seal with a synthetic leather pad. The Dekoni Audio Attenuation Ring is for Fostex Massdrop X00, TH610, and TH900 owners who want to fine-tune the space between pad and driver. The Replacement Audio nylon Cable is a 4-foot cord for KRK KNS8400 and KNS6400 studio headphones. The Audio Cable Cord with in-line Microphone and Control is the most basic option and the lowest-priced item here.
Price Comparison at a Glance
| Product | Price | Price Bar |
|---|---|---|
| Audio Cable Cord with in-line Microphone and Control for Headphones Replacement | USD 5.00 | |
| Replacement Audio nylon Cable For KRK KNS8400 KNS6400 Studio HEADPHONES | USD 13.00 | |
| Dekoni Audio Attenuation Ring Fostex Massdrop X00, TH610, and TH900 Headphones | USD 14.99 | |
| Dekoni Audio Choice Leather Replacement Earpads for Bose QC Ultra and Ultra 2.0 | USD 39.99 |
Decision Matrix
- If your Bose QC Ultra or Ultra 2.0 earpads are worn and the noise-canceling seal feels loose, the Dekoni Audio Choice Leather Replacement Earpads are the match.
- If you have a Fostex Massdrop X00, TH610, or TH900 and want to alter the sound signature without replacing the earpads, the Dekoni Audio Attenuation Ring is the tuning piece.
- If your KRK KNS8400 or KNS6400 studio headphones need a cable, the Replacement Audio nylon Cable is the direct route.
- If you just need a simple audio cable, the Audio Cable Cord with in-line Microphone and Control is the basic option.
Product Notes
Dekoni Audio Attenuation Ring Fostex Massdrop X00, TH610, and TH900 Headphones
Fostex owners who like to refine their headphone's sound will find this ring useful. The part installs between the earpad and the attachment ring, and the holes need to align cleanly for it to do its job. It's a model-specific accessory for the Fostex Massdrop X00, TH610, and TH900, and the item is new. If you're already swapping pads, this ring lets you change the acoustic space without replacing the entire pad. Its limitation is scope: this is a tuning part, not a cable or an earpad, so it works best alongside pads that are still in good shape.
Dekoni Audio Choice Leather Replacement Earpads for Bose QC Ultra and Ultra 2.0
This is a full earpad swap rather than a small add-on. The Choice Leather earpads are built for the Bose QC Ultra and Ultra 2.0, and the material is a synthetic leather with a non-breathable surface. That surface is what helps recreate the seal around your ear, which matters for noise-canceling performance. If your original pads have flattened or cracked, these pads give the headphones a fresh contact surface. The trade-off is warmth: a non-breathable pad prioritizes isolation over airflow, so long listening sessions may feel less airy.
Audio Cable Cord with in-line Microphone and Control for Headphones Replacement
The cheapest way to bring a wired headphone back to life is this used cable. It includes an in-line microphone and control, so you can take calls or adjust playback without reaching for your device. The item is used, so it won't have the same new-part certainty as the other items here. That makes it a sensible spare or quick replacement if you want a working cable and are prepared for one that already has some history. For a spare cable, that trade-off can be acceptable.
Replacement Audio nylon Cable For KRK KNS8400 KNS6400 Studio HEADPHONES
KRK studio headphone owners get a direct replacement in this nylon cable. The stated length is 4 feet, the pattern is black and white, and the cable is built for the KNS8400 and KNS6400 models. The new condition makes it a more predictable choice for a studio setup. The limitation is the narrow fit: its compatibility is tied to the two KRK models named in the title, so it's a dedicated cable rather than a universal cord. If you need that specific fit, this is a clean swap.
Final Recommendation by Use Case
If you own a Bose QC Ultra or Ultra 2.0 and the original earpads are no longer sealing properly, the $39.99 Dekoni Audio Choice Leather Replacement Earpads are the direct fix. For Fostex Massdrop X00, TH610, or TH900 owners who want to adjust the tone, the $14.99 Dekoni Audio Attenuation Ring is the model-specific pick. If you need a cord for KRK KNS8400 or KNS6400 studio headphones, the $13.00 Replacement Audio nylon Cable is the straightforward match. And if all you need is a basic cable, the $5.00 Audio Cable Cord with in-line Microphone and Control is the pick, with the understanding that it's used.
