options for a Namco/Midway-style cocktail cabinet?

[Zobeid]

Let's assume for a moment that I build a MAME cabinet based on something like this:

http://www.mikesarcade.com/cgi-bin/store.pl?sku=CABMWCT

Most of the components, I have a pretty good idea about.  But for audio I really don't know.  I see that it comes with a 6x9 speaker hole.  What if want "okay" mono sound similar to an original coin-op machine?  What if I want better sound quality, what are my options?  I'm just not sure what would be the right way to approach this.

I don't have a cabinet yet.  Building one from a kit and cutting my own speaker hole (or holes) is also an option.  I'm pretty sure I don't want to put in a powered subwoofer, but anything short of that is open for consideration.

[Kevin Mullins]

You have to decide mono or stereo first off.
You will already have stereo output from the PC if you decide to go that route.

Either way you will need a small single (mono) or dual (stereo) channel amp to drive the speaker as the PC alone will not drive anything remotely close to a 6X9 worth a hoot.

[Zobeid]

Right, I should have mentioned that. . .  My only interest is in playing the real oldies, so very few of them produce stereo sound.  The only one with stereo that I can think of that I'd be likely to run is Gyruss, and that's no big deal really.