If your SET is loose in the bass, then drop it. If your SS does not give you midrange magic, then throw it out. Don't compromise, if possible be prepared to pay the money to obtain what you crave for . Use cheap/mid-priced equipments and you'll get mediocre performance - because that's what you've paid for. Theres nothing wrong with it, but move around, seek to hear the better of rigs and open up your eyes/ear.
It seems most Omega Speakers owners seek to the cheapest possible way to partner their speakers. Too bad as the speakers deserve better even though they can give satisfactory results with lesser partners as well.
No doubt there are incredible amplifiers out there that cost big bucks, but there is the law of diminishing returns that comes into play here, and once you reach a certain price point the curve begins to flatten out and you end up paying huge dollars for tiny incremental returns. Home audio is one of those consumer areas where the playing field is VERY uneven. One can spend big bucks and get poor sound, or spend relatively little and get great sound, and one doesn't need to go to Asia to do it.
The beauty of Omega speakers is their ability to mate well with low powered amps which are usually very clean sounding due to low parts count and short signal paths. Such amps can be be built to the same quality (often better quality) standards that many mega buck, more complex and powerful amps are. Being on this circle for years the trend that most Omega owners seek for is system synergy, and if low cost amps do it for them, that's great, they can use the money saved for other things. I've heard many amps in my life, and some very expensive, but when I got my first Decware SE84C+ about six years ago, I never looked back. Beat everything I had heard up to that time. Also, it was simple and as well made as any amp I've seen, just no bling.
The Temple Bantam Gold is a UK built jewel of an amp, sort of the Decware of Class D. Along with the Audio Zone Amp STi, I think the Temple mates beautifully with the Omegas and for solid state probably my two favourites.
Matched to the right speakers, a good SET needn't sound sloppy in the bass or syrupy in the highs. I run a Super Zen on Alnicos without sub and have the best bass I've had in my life (YMMV). You are totally correct in saying Omegas deserving the best, but the best needn't cost a ton of $$$.