I'll look into those two suggestions. I thought $50 for a pair of Alphas would be a reasonable deal and something that I could put my hands on right away and still have a big improvement on what I currently have.
You realize (IIRC you said "minis") that these speakers are
tiny. Have you seen them? They're about 4" deep, and the woofer is only 3.5". If you are serious enough to be posting, inquiring, and all in all spending this much time researching this stuff, you need a more capable speaker. Now, even if you upgraded to the B1 from the Alpha series would I still suggest getting something better.
However, I will persevere and look for better ones.
Then I am already satisfied with the effectiveness of my help to you, thanks.
Are there any other brands other than those two that you would recommend? Mission? Polk? Boston Acoustics? I see these names more commonly, but unsure of their quality.
First of all, people here own all of these brands. I've not heard one, dislike another, and was impressed with certain characteristics of the remaining (but beyond your price point).
You can't afford them anyways (I think), and IMO with this brand, they don't offer, IMO,
relatively great value until you're at the high end anyways.
The Alphas and Atoms were from a stereophile.com recommendation. Everything else that they listed were way too expensive for me.
Yes, I understand. I'm led to believe that they must grade them by MSRP. The thing is certain items will have been around long enough, even superceded, where the MSRP is nowhere near the street price. Then factor in used, blemished, and b-stock, and you might get a lot more performance for little more money.
I do use my DVD player for CDs. Does that make a difference using Marantz? What is "mch PCM"? I do recognise that sometimes the audio tracks have more than 2.0 on DVDs. And what is SACD or DVDA? These are horribly rookie questions, I know.

Have you seen Blu-ray players that are super thin and streamlined? All the high-end ones look so bulky. Any particular brand/model to look out for?
I'm sorry to throw that stuff out there. You can forget all of that, seriously. The only thing to consider with CDs is you're using the red/white analog outputs to your Marantz, in which case the analog section (DAC) will matter in the final SQ.
Still, just get the nicest speakers you can, for now.
I just posted this elsewhere today, but it could be rather interesting to you . . .
Budget Bookshelf Speaker Face Off 2009 Results