As far as i know, u cannot connect any speakers directly to a turnable. I donno what other connections besides the usb are on the device. If there is only a USB connector, then this means, that the signal from the needle/pickup is converted internaly into an digital datasignal, which is being transferred to ur pc using a usb cable. Your PC then translates this data signal into hearable audio. Speakers need an analog signal as input, normaly fed to them via an amplifier.