This should actually not be a problem. The manufacturer says the following about its turntables:
"Enjoy the sound of a classic sound system that connects wirelessly to any Bluetooth® speaker. The built-in preamp with on/off switch ensures seamless compatibility with your Marley speakers or home receivers. The Stir It Up Wireless has a USB port for PC recording, a stereo RCA output and a 3.5mm AUX output."
I would try different speakers to also rule out a possible defect in the unit.
