A:AnswerAdditional speakers? NO speakers are included with the AT-LP60X-BK Turntable. You may connect the turntable to a single pair of powered (aka active or amplified) speakers OR connect it to a stereo receiver or integrated amplifier that has provisions for connecting 1 to 2 pair of non-powered (aka passive) speakers to it.
A:AnswerWith the proper cable, a 3.5mm male stereo to 3.5mm male stereo type, you could connect the turntable to the single 3.5mm stereo LINE IN or AUDIO IN jack on a computer but a lower noise and more of a plug and play option is to either use a USB audio interface or purchase the USB version of the turntable, the AT-LP60XBT-USB, to connect the turntable to the USB port on the computer,
A:AnswerYes, it does, but we recommend replacing the supplied white conical stylus with the higher resolving black elliptical stylus, the ATN3600LE, to take advantage of Hi-Res vinyl's high-quality audio.
A:AnswerYou can but you would not want the speakers to be in the same room, the speakers connected via Bluetooth will lag behind the speakers that are wired.
A:AnswerI don't know the cartridge number it comes with, it's white. But there is only one different one available, it's an elliptical. I switched to this and it greatly improved the sound quality. The replacement # is ATN2600LE. Costs about $50
A:AnswerYou could, by plugging a set of wired headphones into the 3.5 mm stereo Analog Out jack on the back of the turntable, but the volume would be at a fixed level and only moderately loud as there is no power amplifier inside the turntable (only a phono preamplifier) and there is no volume level adjustment on the turntable. It would be better to install a headphone amplifier between the turntable and the wired headphones or go with the Bluetooth version of the turntable, the AT-LP60XBT- and use a set of wireless (Bluetooth) headphones instead.