Those self-powered Audioengine look very good!
I recently got something similar. It's in a different (cheaper) price range, yet it's got all you need: Behringer MS40 (2x 20W)
I got them from Amazon UK for cheaper than the actual price (around 130$).
- Self-powered with on/off button on the front panel
- Treble/bass knobs & 2 volume knobs on the front panel
- Optical/coaxial inputs. Use a switch at the back to toggle one or the other (a bit annoying if the speakers are close to a wall)
- 3.5mm stereo in jack
- L/R stereo in jacks
- Front audio jack, very useful to plug my portable CD player for OST listening
The Audioengine ones have L/R outputs, which the Behringer don't. They also have a USB power, not sure what that is for. I also see a nice replaceable fuse and they do look higher quality (price is more than double though).
Back to the Behringer, I would recommend them for oldschool consoles. I used them with NES(FC), SNES(SFC), MD and Super GameBoy add-on for the SFC. Sound is very clear and the bass is powerful. CD-based consoles sound good though, but not as crisp.
I would NOT recommend them for TV and DVD watching. Unless I'm doing something wrong or using faulty cables, human voices aren't very clear and the volume must be turned up quite a bit to enjoy a movie. Soundtrack CDs and CD music in general is somewhere in between - sounds good but very flat, some adjustment in the CD player will be needed. I've read it's because these are "monitors" and are supposed to be very flat, in order to sound as close as possible to the source. It would make sense and explain why some sound effects/voices in movies and tv programs aren't as "loud" and "clear" as we're used to with other auto-tuned and enhanced speaker systems.
Can't really complain for what I paid. The main reason why I purchased them is because of all the connections at the back. Really helps to concentrate DVD players, MP3/portable players and old videogame systems.
To make it even better, buyt a L/R multiplier so you can plug your NES/SNES/MD at the same time with the L/R jacks.