[Klipsch RP-500M make a popping/thud noise when turning off power amplifier]

Thanks all for taking the time to post answers. I ended up adding a power speaker control (TC-7212) between the speakers and the amp. It allows me to "turn off" the speakers before initiating the powering down sequence of the amp and preamp. 

 

 

[Klipsch RP-500M make a popping/thud noise when turning off power amplifier]

Hi everyone, 

 

I purchased the Klipsch RP-500M (passive, 93dB, cont 75W, 8 Ohms). I coupled them with the Schiit Vidar (100 watts per chanel into 8 ohms). The sound is lovely but everytime I turn off the Vidar, the Klipsch speakers make a moderate "popping" / thud sound.

 

Any idea what could be the issue? My understanding is that these popping sounds may be related to a voltage transient spike that can damage the speakers or reduce their life span.

 

The Schiit rep that I contacted told me that the popping sound might be caused by the fact that the Vidar is providing too much power to the speakers. I'm a bit surprised to hear that since the power amp only has 25 watts in excess of the 75 watts rating of the speakers. 

 

As a sidenote, I use the Schiit Asgard 3 as a preamp (it has preamp outputs). It does make a popping sound as well through the headphones when they are plugged in. 

 

Thanks for your help!