You have been more helpful than I could have ever hoped for. I feel like I'm actually learning this
Haha, no problem
Everything with the channels you explained makes perfect sense to me. So assuming I've hooked up my 5.1 system to a 7.1 receiver; if I wanted to add a center speaker, two floor standing speakers or two bookshelf speakers all I would need to do is connect them via speaker wire and I'd be good to go?
Well, I'm not sure what you mean by this, in a 5.1 system, there already is a center channel. In a 7.1 channel system, all you are doing is adding two more speakers behind you called Rear Surrounds. Please explain.
If you mean you want "Replace" the current speakers with other ones or perhaps better ones if you one day choose, than all you need to do is disconnect the old ones and connect the new ones. Speakers are connected to the amplifier/receiver via speaker wire which ends up hooking up to the receiver.
If you want a simpler and easy way to visualize, I can post up a picture of a regular receiver, like as sony and show arrows to what connects where such as speakers and other equipment to make it easier. As they say, a picture is worth a thousand words.
It's good to know about the distortion because I certainly will not be having my volume anywhere near maxed out. Speaking of acoustics, are there any good guides/tips as to ideal or recommended positioning of speakers throughout a room?
Well all rooms are acoustically different. In professional home theaters, ones that cost thousands, hundreds of thousands, some even millions (I've seen one), have special acoustic insulation installed into the walls and special panels placed around the entire room to prevent any sound reflection which results in inaccurate surround effects. However...thats just taking it way to far.
In terms of placing speakers, all your speakers should be at around the level of your ear when you are sitting. Due to human hearing perception, high frequency sounds are extremely directional (meaning you can easily pinpoint the source of the sound), and thats why all the speakers should be at ear height and angled to point at the area of where you will be sitting for optimal surround sound effect.
Now, also due to human hearing, low frequencies are extremely difficult if not impossible to pinpoint the location from where they coming from, which is why you can hide the subwoofer out of view or put it anywhere you want it, it will sound the same.
^To add to the above, if you want more bass, place it closer to the wall or better yet, a corner, as the close it is, the more resonance and therefore will result you in hearing deeper and louder bass, while if you place it further away, it will result in less bass. Thats all about acoustics.
Also, are these systems generally easy to install (providing the manufacturers manual is half-decent)?
Depending on the system, yes, very easy usually. And if you have any questions, just ask me...I know my stuff in this area so to speak
.
The only thing that really intimidates me at this point is understanding the different types of connections, and which ones I should use for various pieces of equipment.
Nothing to worry about, peace of cake, if you want I'll post a picture with arrows/directions where to connect everything. Its very easy.
The problem with using HDMI to connect my PC to the TV is that it doesn't utilize the sound card. So if I want to use my sound card for the system I assumed I'd need to connect my PC to the receiver twice. Once with HDMI from the video card (providing the video), and then some other connection from the sound card to the receiver (providing the sound). The sound card only has 3.5mm jacks so I'm guessing I'll need an adapter for the component cable to 3.5mm.
The thing is that you can buy an adapter cable from a 3.5mm to a component/RCA cable which will work, in which case you will be able to use a SPDIF connection I think for digital audio, and I think you need multiple adapter also, I'm actually not exactly sure about this right now, but I'll check.
However, just wondering but does your motherboard itself have a digital audio out?
And yes, for your equipment, everything is HDMI, so it will easy to connect everything to the receiver.