Monoblocks or upgrade to larger amp?

Believe me, the SA250 will run the Dynaudios much better than the SA100 (have tried these combinations). As suggested above, if you buy another SA100 then bi-amp, don't bridge. You will also find the SA250 sounds different than the SA100 - and the SA250 Mk3 sounds quite different from the Mk4. Looking at your gear, the SA250 Mk3 will be a very good match and obviously cheaper and more available second-hand.

I would have a bit more respect for the opinions of the dB freaks if you had actually heard a SA100 and SA250 in a few systems. I don't give a toss which one has the more power, the SA250 is a significantly better power amplifier.

Viridian, you wrote "The difference in power is very negligable, any of you slide rule types out there want to calculate the power difference in db for us?" Somehow I cannot find the point you claim to have made about sound quality being the deciding factor - do I have to try reading it backwards, or have familiarity with the Koran? Or is your point on some other post somewhere and I missed it?

You also wrote "Maybe Redkiwi should actually try to read the posts before responding." Maybe Viridian should actually try to post the point he is claiming to make before claiming others are not reading it.

I must have been in a bad mood with my earlier posts - sorry about that. Knowing both these amps, it does not gel with me to consider the SA250 as just being a more powerful SA100. Secondly there is a significant difference between the SA250 Mk3 and the Mk4. I don't mean the Mk4 is significantly better, but it is significantly different.

The word is, by the way, that US buyers are holding out for a Mk4 version of the SA100 and sales have slowed, causing Plinius to consider releasing a MK4 version, even though they have no upgrades planned. Kinda illustrates the false conclusions people jump to about how a family of products is developed.

Another little story - A friend of mine had a SA250 Mk3 and used it with his Dynaudios and found it lacked life - auditioned the Mk4 and found it went in the wrong direction for him, and believe it or not went back to using a McCormack DNA 1.0, because it gave the added edge that the Dynaudios needed. I relay this just to put the relative sound in perspective. I reckon his problem was his other gear which was Meridian 500 and 566-20, with a Sonic Frontiers preamp, and his insistance on using very ordinary cables.

Last point - if I had an SA100 and Dynaudios, I would be craving for more power too. The Dynaudios require a powerhouse amp and the SA250 may do the job, but may also be a little laid-back in this combination. The SA 250 Mk4 and Thiel 3.6 work really well together for me, but the Dynaudio is not the same kind of speaker as the Thiel 3.6, if you know what I mean.

My friend suffers from being an electrician and so discussions about cables are not too meaningful.