This review posts on 3 sets of speakers:
The G4 internal speaker (quicksilver)
The Apple Pro Speakers (Pro port, 20watts)
Cambridge/Creative SB20 speakers (20watts)
We start with the creative speakers, volume maxed (on speakers), kept sys volume at 7 squares on volume scale (keyboard scale), with no itunes equilizer in use.
The result: Loud but empty sound.. you had medium and high that was it.... if you maxed everything but the distortion and the high pitched sounds left.
Quality for price: 8 of 10 ($29.. expensive when I bought them)
Quality for size: 5 of 10 (not horrible I admit)
Quality OF looks: 0 of 10 (They're ugly as hell)
Second, Apple Pro Speakers, smaller cones than the creatives, but much prettier, same watt rating.
The pro speakers have no direct volume control, so let's forget that, but after unplugging the creatives and switching to the pro speakers instantly, you can tell a big difference.
The pro speakers have MUCH better quality sound, obviously thanks to the digital interface. Though mids aren't thought as good on pro speakers as on most, I think not, due to the fact the pro speakers have MUCH BETTER sound imaging (You can hear the wide variety of instruments.)
The score is 10 of 10, for quality of this size speaker.
10 of 10 (no doubt) for this look of speaker
and 4 of 10 for the quality of that specific price range ($60 can get a set with sub!!!!!)
The G4 speaker comes free with the G4 (it sucks we get that piece of **** after paying all that money, and no doubt, it sounds like an alarm clock radio, a LIFELONG alarm clock radio
You can hardly hear the G4 speaker at the same volume, in fact it's better maxed out.
Quality for size: 10 of 10 -> Bass was great, treble was good. Better than headphones.
Quality for price 10 of 10 -> it was free anyway
Quality for look: 10 of 10 anyway.
You see where I'm going, obviously the G4 speaker is a puny little thing. The Creative speakers are cheap, and the pro speakers are a little overpriced, but still acceptable.
Get an isub with any of your choices, if in OS 10.1 it can even work by itself! (It makes speakers sound much better!)