Delay before RCA input plays on BT30D

[Obi_Wan_Kenobi]

Hello, I recently purchased a new BT30D (not pro model) and I have it hooked up to my computers aux port through a 3.5 aux to RCA adapter (Amazon Basics). The sound is great on my passive speakers and and I am quite happy, however, there is about a 1 second delay before my speakers actually start playing audio. I noticed that the speakers don't produce any "hiss" during this quiet period and then when the sound comes through there is a small hiss which indicates that the amp is producing an output signal which is normal. When I am done playing my media after about 4 second the speakers go quiet (producing no hiss).

Any ideas on why this is happening and if there is anything I can do to get rid of this delay as it is quite annoying to have to rewind media every time?

 

[Obi_Wan_Kenobi]

I just bought the pro model and this issue is not present in it because there is no circuit to turn the signal off. So if anyone is reading this, buy the pro model, it is worth it