The AT-LP2D-USB has built-in switchable phono/line preamp.
The Audio-Technica AT-PL50 does have a built in pre amp.
It's when the computer's audio card is built in to the mainboard
yes it does
no
it is built in it is called audio books
"The average price for an audio rack is approximately $150.00. It really depends on what type of features you are looking for in a audio rack. ie. How many shelves you want, what type of material it's built with."
You can turn on your monitor's speakers by inserting the audio jack into its audio-in port. If no audio is heard, ensure your computer's system volume is turned up.
A link or a hyperlink.
Neither C nor C++ provide any built-in methods to reproduce audio. They are generic languages; audio is hardware-specific. To play audio, you need an audio library suitable for your hardware. OpenAL is the generic audio library equivalent of OpenGL for graphics.
Bluetooth is very easy to use and set up on he Boss Audio, it probably takes about five minutes to configure.
First thing to do is to restart your computer. If is still does not work, open System Preferences and check the sound settings. Make sure the output is set to Line Out for the Built In Audio.
The likely proper noun is Consonance T1, a model of analog pre-amplifier built by Opera Audio.