Bitrate of all my songs are 192 and above.

The type of line im using from the computer to the Pioneer's AUX is one end going into the computer has the same type of jack as a headphone then splits into R/L channels for the AUX.

Is there a special cable I can use to make better louder sound or?

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99 C43
98 S420
99 C230K
01 C240