I experience something odd and am somewhat concerned. I recently purchased second hand:
I had to move the set up, then connected things back up and couldn’t hear anything. I messed around with it for a while, then noticed the lightning end of the RCA was incredibly hot.
I took everything apart then realised I’d mixed up one speaker’s pos/neg input on the amp. I fixed this, but still nothing. Tried a different RCA and all good.
So the issue is somewhat fixed but I’m worried about what broke the cable and made it so warm. I don’t think the speaker wire mix up should do that. Could the amp be sending a current down the RCA? Is it too risky to use?
Thanks!!
- A topping MX3
- A pioneer S-21W subwoofer
- 2 Q acoustics 3020 speakers
I had to move the set up, then connected things back up and couldn’t hear anything. I messed around with it for a while, then noticed the lightning end of the RCA was incredibly hot.
I took everything apart then realised I’d mixed up one speaker’s pos/neg input on the amp. I fixed this, but still nothing. Tried a different RCA and all good.
So the issue is somewhat fixed but I’m worried about what broke the cable and made it so warm. I don’t think the speaker wire mix up should do that. Could the amp be sending a current down the RCA? Is it too risky to use?
Thanks!!
The Apple lightning jack was plugged into the (unspecified) audio source and the RCA plugs were connected to the Topping MX3?
I believe the lightning socket on your source incorporates power lines which if shorted by a faulty lightning jack would create heat.
I would throw that lead away!
I believe the lightning socket on your source incorporates power lines which if shorted by a faulty lightning jack would create heat.
I would throw that lead away!
Yep, the lead is very much in the bucket now. I’m not sure if the phone (the unspecified audio source) would be the problem tbh. The cable had been unplugged from the phone for a while and was still v hot. However, it cooled down only a few minutes after being unplugged from the amp.
I didn't suggest the phone was the problem, I suspected a faulty lightning jack.
What you describe is strange, but I don't see how current could be drawn from the input of the amp.
If all is well with a replacement cable then I would regard the problem as solved.
What you describe is strange, but I don't see how current could be drawn from the input of the amp.
If all is well with a replacement cable then I would regard the problem as solved.
Internal short in the cable, then its internal chip went into CMOS latchup? Or just a cheap cable that couldn't handle momentary shorts (the wonders of the awful RCA plug design!).
Suggest not hot-plugging the RCA end if the cables powered up...
Suggest not hot-plugging the RCA end if the cables powered up...