I have a PA-10 unit, and find it great for listening as a pre-amp. However, when I attempt to listen using headphones (Grado SR-60), I get a loud buzzing, and no music through the headphones. Also, when I insert the headphone jack into the unit, it does not cut out output to the amp? Is that supposed to happen, or should it not override the output. Do you have any troubleshooting suggestions?

Kindly take note the Input Switch(support PC/iPod or CD/DAC). Also, go to Trends PA-10 [Download] section for getting the user guide and check the details in Troubleshooting page. Should you have further queries, please send your request to [email protected].