These speakers work on the Udoo X86 once the correct plugs are installed on them: http://www.mpja.com/Speaker-8-ohm-Micro-in-Cube-Case/productinfo/31867+SP Speaker, 8 ohm Micro in Cube Case Item #: 31867 SP Sale: $3.95 Quality Micro speaker permanently mounted in a 32mm2 X 28mm ABS plastic box. 3in. leads with a 0.1in. pitch micro connector out the back. Rated: 8ohms +-15% Frequency range: 200-20KHz. Resonant Frequency: ~240Hz Power: 2W RMS SPL: ~78 +-3dB @1W & .5m Rubber edged Aluminized Mylar cone with copper coil. SQ: 1-1/4" T: 1” WT: .09 Connector housing: JST Sales America Inc. PHR-2 https://www.digikey.com/product-detail/en/jst-sales-america-inc/PHR-2/455-1165-ND/608607 Contact Crimp Socket 28-32 AWG https://www.digikey.com/product-det...-amp-connectors/1734193-1/A98721CT-ND/1855515 Ready made cables: https://www.ebay.com/itm/322096433297
