What's wrong with Thiel?

All good points above. Matching amplifiers is important not just for Thiels if you want to approach perfection. A speaker that works well with a lot of amplifiers is less likely to be great with any one amplifier. Just like Pavarotti is great at opera, he is not very good with other music styles. Where as the girl that won the America idol competition can sing many styles well, but she is unlikely to be great at any one style.

So think in terms of a whole system, not individual components.

I agree Hackmaster. You said it better than me.