Scroll down to related links and look at "Interconnection of two units" and find the picture of the amplifier and the loudspeaker. Learn about "voltage bridging" - Zout < Zin. There are no power amplifiers with a high impedance output.
If the amplifier is not rated for 4 ohms impedence, you will quickly over-current the amp, burning out components. The power handling of the speaker and power output of the amplifier does not matter in this case. It must be compatible with the impedence load that you are connecting.
At the rear of the receiver there is a single RCA jack (phono socket) that is marked "audio out" and "sub-woofer". This is a mono feed that can be connected to a powered sub bass unit. It will not drive an un-powered bass speaker that does not have an internal amplifier. If the bass speaker is not powered, the audio out from the receiver can be taken to a single channel of another amplifier and the bass speaker then connected to the speaker output of the amplifier.
Possibly, if you turn the volume up, but not necessarily. You should attempt to match impedance (your amplifier is designed to have specific speaker impedances connected, if these are not connected it will not deliver full power).
No. Load resistance is the value of the element actually doing the work of the circuit it is connected to. A speaker connected to an amplifier is the load.
A microphone connected to an amplifier and speaker(s).
What I have done before is i attached wires from my door speaker and connected my sub. It sounded pretty good.
Scroll down to related links and look at "Interconnection of two units" and find the picture of the amplifier and the loudspeaker. Learn about "voltage bridging" - Zout < Zin.
Nothing is better.
The first computer speaker was an ordinary speaker with vacuum tube amplifier connected to the MSB of the accumulator, it was used to assist in debugging. It looked no different than an ordinary audio speaker of the time.
Yes, but you should be careful not to exceed the amplifier's mininum impedence rating for each channel. If your amplifier is rated down to 4 ohms, you cannot connect more than two 8-ohm speakers on to each lead. Doing so will damage the amplifier. Connecting two 4-ohm speakers will drop the impedence down to 2 ohms, which is lower than most home amplifiers will tolerate.
Depends on the output of the amplifier.
Try it only if the speaker is rated at 8 ohms and has sufficient power handling. Using low impedence speakers, particularly those designed for a Bose car stereo system can damage your amplifier. The speakers are not likely to have any bass response if they are used raw (outside an enclosure).