Note: This article has been updated with lastest available information on December 24th, 2020 at 07:56 pm
By default, the Spark Amp can only work with its own built-in speakers.
However with a Switchcraft 318 Mini AudioStix 1-channel Passive Laptop Direct Box plugged into the headphone out, you can connect to a PA system
This device provides an XLR connection that can be connected to a powered PA speaker
Where can i buy this ?
I daisy-chained another amp to my Spark’s headphone out. I connected it to the guitar input jack of the other amp, so you need to keep the volume down as the impedance isn’t correct coming from the headphone output. Then I struck the problem that, plugging anything into the Spark’s headphone socket disables the Spark’s main speaker. So I opened up the Spark and soldered in a second 3.5mm jack socket. Now i have a headphone socket which disables the speaker, and a second similar socket which doesn’t; disable it. The trick is finding the contacts to solder to. I took photos and can supply the details.