Bose QuietComfort QC45 QC35 QC25 I II 40MM Speaker Driver Cone Replacement - Parts

Genuine Bose 40mm Speaker Driver Replacement – OEM Part

Restore premium sound quality to your Bose headphones with this genuine 40mm speaker driver. This OEM part is pulled from working Bose headphones, fully tested, and guaranteed to perform like new. Ideal for DIY repairs and restoring audio clarity and balance.

🔧 Installation:

To install, simply remove the old speaker from its housing and glue the new one in place. For optimal audio performance, we recommend replacing both left and right drivers at the same time.

🛠️ Repair Ninja Tip:

Most speaker driver failures happen due to high volume. Internal coils can wear out from prolonged or excessive use. To extend the life of your new driver, keep your volume moderate to avoid future replacements.

Burn-In Tips for 40mm Drivers (32Ω, 20mW):

• Mount securely before use; don’t run loose on a table.
• Play pink noise or varied music (avoid pure bass tones).
• 2–3 hrs at low volume, then 6–12 hrs at moderate volume; let them cool/rest after.
• Keep only warm to the touch—never hot; avoid high volume/overpowering.
• Most benefits show by 10–15 hrs (smoother highs, better bass).

📦 What’s Included:

• Bose 40mm OEM Speaker Driver (Tested & Working)

📏 Specs:

• Brand: Bose (OEM)
• Driver Diameter: 40mm (Standard size for most consumer headphones)
• Condition: Grade A – Excellent (tested, OEM-spec performance)
• Impedance: 32 Ohm
• Milliwatts: 20mW 

✅ Compatible With:

• Bose QC45
• Bose QC35 I & II
• Bose QC25
• Bose QC15
• Bose QC3
• Bose QC2
• Bose AE2
• Bose OE2

🎥 Watch: How to Install the Bose 40mm Speaker Driver

Step-by-step video tutorial from the Repair Ninjas at JoesGE.