Quick answer
Choose Repair Tier 2 if you own a smaller or older 64 Audio model like the A3t, A4, or U6t. Choose Repair Tier 4 if you own a flagship or larger model such as the A12t, U12t, Trío, or TWELVE TI.
What each tier covers
Both Repair Tier 2 and Repair Tier 4 include a sound assessment, a damage assessment, and fixes as part of the service. The main difference lies in which models each tier is designed for, not in the nature of the work performed.
Repair Tier 2 applies to select 64 Audio models like the A3t, A4, A4t, A4s, A5, V6, V6s, A6, A6t, U6t, and Duo. Repair Tier 4 is intended for the A12, A12t, U12t, Trío, and TWELVE TI, and also covers past-generation 8–12 driver models.
Because the tiers are model-specific, selecting the wrong one can delay your repair or require a service adjustment. Always match the tier to your exact model when you request the service.
Price difference and what it reflects
Repair Tier 2 is priced at USD 104.30 compared to a catalog comparison price of USD 149.00. Repair Tier 4 is priced at USD 159.36 compared to a catalog comparison price of USD 249.00. The higher price for Tier 4 reflects the more complex construction and driver configurations of the models it covers.
If you own a Tier 4 model, choosing Tier 2 to save money is not a valid workaround—the service options are tied to your model, and the correct tier ensures the technician has the right assessment and fix scope for your IEMs.
What about Tier 5 and remolding?
Repair Tier 5 is available for models that require a higher level of service, and Remold Tier 5 is for when you need your IEM shells rebuilt. If your model isn’t listed under Tier 2 or Tier 4, or if you need a remold, check those options instead.
Repair Tier 5
Remold Tier 5
This comparison focuses on Tier 2 vs Tier 4 because those are the two most common repair tiers for current 64 Audio models. For anything outside that range, the other service options exist for a reason.
Trade-offs at a glance
- Repair Tier 2: Choose this for A3t, A4, A4t, A4s, A5, V6, V6s, A6, A6t, U6t, Duo, and similar models. It costs USD 104.30 and covers sound/damage assessment plus fixes. Verify your model is on the Tier 2 list before ordering.
- Repair Tier 4: Choose this for A12, A12t, U12t, Trío, TWELVE TI, and past-generation 8–12 driver models. It costs USD 159.36 and includes the same assessment and fix scope as Tier 2. If you own a flagship model, don’t assume Tier 2 will work—check the model list first.
- When neither fits: If your model isn’t listed under Tier 2 or Tier 4, or if you need a shell remold, look at Repair Tier 5 or Remold Tier 5 instead. Using the wrong tier can delay your repair, so confirm the model match before sending your IEMs.
Repair tier facts
- Repair Tier 2: Repair Tier 2 includes sound and damage assessment plus fixes, and is available for select models like A3t, A4, A4t, U6t, and Duo. If you own one of these smaller or older models, this tier gives you the correct service scope without paying for coverage you don’t need.
- Repair Tier 4: Repair Tier 4 includes sound and damage assessment plus fixes for A12, A12t, U12t, Trío, TWELVE TI, and past-generation 8–12 driver models. For flagship or complex multi-driver IEMs, this tier ensures the service matches the model’s construction and driver count.
Which service fits you?
Best for
- Owners of A3t, A4, A4t, U6t, Duo, or similar models who need a cost-effective repair
- Owners of A12t, U12t, Trío, or TWELVE TI who want the correct service for flagship IEMs
Not for
- Owners of models not listed under Tier 2 or Tier 4—check Tier 5 or Remold options
- Anyone needing a shell remold, which requires Remold Tier 5