What is a dual purpose 3.5mm headphone/line out jack?
The 3.5mm headphone jack on the Fender® G-DEC® 3 Fifteen can also be used as a stereo line out jack to send your amps audio output to another source such as a mixer or audio interface. After connecting the amp to your external device using the proper cable, simply adjust the volume on the Fender G-DEC 3 until you get a clean, distortion free sound. This method may also be used on the Fender G-DEC 3 Thirty. However, the Fender G-DEC 3 Thirty includes dedicated 1/4” stereo line out jacks for this purpose.