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It is that time again! SparkFun Electronics will be closed Friday, January 13th for our annual inventory day. Please keep in mind that any orders placed after 2PM (Mountain Time) on Thursday, January 12th will not ship or be prepared for local pickup until we open for normal operations on Monday, January 16th. In addition, tours will resume on Friday, January 20th. Thank you for your patience!

Member #556118

Member Since: May 20, 2014

Country: United States

  • Mine is completely assembled, I am using a 1A ~18V power supply and when I plug it in, the speaker just starts repeatedly thumping and the peak light flashes. Using it for a school project to run a sub eventually, what do I need to do to fix it?

No public wish lists :(