TC417 - Troubleshooting - Choppy sound in SPDIF(Optical) connection under TX mode


Keywords: TC417, choppy, optical, SPDIF, static, aptX

When you use TC417 as an Bluetooth transmitter and if you experience choppy sound under SPDIF(Optical) mode, pls contact to get a replacement from new batch. 

This is a known compatible issue between aptX codec supported headphones and TC417(old batch).  This problem will be fixed in NEW batch (Lot NO.: 19D1, Estimated released date - May, 2019).


There are two solutions here -

  1. To send you a Audikast transmitter (with no built-in battery)-
  2. Wait for the TC417 of 19D1 batch.

Replacement instructions:

1. You send us an e-mail to including the model of your headphones and your Amazon order number so we have your record / address 
2. We will send you the Audikast right away, or updated version of TC417 in May,
3. You receive / test / confirm issue fixed
4. You return the first one to us by the shipping label we provided.


NOTE: This choppy sound issue is for Lot number 18XX, (XX=J1, L1...), it is solved from Lot number 19D1 onwards.  Here is how to find the lot No.


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