Audio Asylum Thread Printer
Get a view of an entire thread on one page
|For Sale Ads|
In Reply to: RE: Amp fried headphones - DC into the output - questions posted by robertd on February 09, 2016 at 17:09:33
You have your information a little bit backwards.
A headphone amp with a directly coupled output can do this. A capacitively coupled or transformer coupled amplifier is very, very unlikely to have a problem like this.
If the headphone amp is in warranty, you should consider talking to the manufacturer about repair as well as repairing your headphones.
Any thoughts on what might cause this to happen, or is it just a random event that can damage headphones?
fight the good fight
A shorted transistor can cause this pretty easily. An open resistor in the DC feedback network might do the same, as would a shorted coupling cap where that feedback was being applied.
Sometimes you will see people talk about modding amps by removing the coupling caps they find unnecessary, and events like this can be an unintended consequence.
Post a Followup:
Post a Message!
This post is made possible by the generous support of people like you and our sponsors: