How Much Difference Does a More Powerful Amp Make?

How would someone know if they were "running out at current power usage"? Is there an easy way you can tell that an amplifier is not powerful enough for your speakers? Or does that just manifest in "bad" sound?

Since you are moving within the same make and lineup of the amp you will probably not have "inferior" watts. So it is all about 150 vs 250 watts. With your speakers it is a big thumbs up to go higher in watts. What you will most probably hear is a more resolute, disciplined performance because of the grip the amp will have on the drivers. The sound might be bigger as well but it will be more graceful. To me these are important improvements. I have owned and heard many Dynaudios in the past BTW.

This Sims are very high current so I doubt you need more power. The W-7 is more than capable.

How can you tell whether an amp has high current? And, pardon my ignorance, but what's the difference between currents and watts?

more power doe snot always mean better sound ... if power was the only consideration, old amps like the Crown Macro Ref or newer 1000w class D's would be the pinacle of amps

some of the best sounding amps (IMHO) from major manuafacturers include the Levinson 29, Krell KSA-50's, Jeff Rowland Model One and the Plinius SA-50 Mk III or IV. the Forte IVa is a "giant killer" in what could be termed inexpensive high-end amps.

Plinius amps are nice in that you can switch from pure class A to class A/B. the older models are an excellent value on the used market.

Jeff