The 555 isn't the most powerful amplifier in the would, and its current driving capabilities are limited (due to the PSU size).

I would suggest that you bought a s/h 557 and sold the 555, should cost you about �350-�400 to change and used the remaining budget for the speakers. Personally I'd think that you would get better results with this.

It still leaves you with a budget of �2100 for the speakers.

As Cliff said speakers are a very personal thing, but since I'm a big Shahinian Fan I would suggest listening to a pair of Shahinian Arcs, your budget would allow you to buy some nearly new ones.

All the best

Mr Perceptive