A:AnswerYes. The manual says to set the switch on the back to LINE if the device you are connecting to doesn't have a PHONO input jack (or AUX or VIDEO input jack) so the audio signal that "passes through the phono preamp built into the turntable" is output from the audio cable.
A:AnswerIf they are bluetooth speakers then yes, you can play music right away. The turntable has its own preamp so it works even without a receiver amplifier.