"Form@C" wrote in message
news
On Sat, 03 Jan 2004 15:47:40 +0000, Fish wrote:

I'm moving to a smaller house soon and alas my present audio stuff will
need changing for a smaller, more neighbour-friendly set-up.

At present I have a Bryston pre/power combo (250-watter) and a pair of
large Dynaudio floorstanders. Nothing-special CD-player as imho
cd-players
are nothing special.


Sheesh - 250W is enough to cook on.... :-)

No, barely adequate.


Have a look at any mid-price, fairly sensitive, half-decent speakers &
couple them with a little pure class A amp. Valves are nice... (you could
even build your own! I've just built a MOSFET headphone amp that would
scale up quite easily. I bet it only cost me £30 or so if you include
the bits from the "scrap box".) You may be surprised at how little power
you really need; most people can get away with about 3W to 5W per channel
under real-life surroundings.

During the "average" situation maybe. Lets say a symphony orchestra burbling
away steadily. Then comes the climax. One or two huge peak demands. Maybe
several hundred watts. It is the 5W valve amp's inability to cope with peak
requirements without distortion which is it's weakness.

Remember that to double the volume you have
to square the power, so 250W is about twice the volume of a 25W amp, which
in turn is about twice the volume of a 5W amp! The more sensitive your
speakers are, the better.

No. Highly efficient speakers are generally less accurate than "lowish"
efficiency speakers. They tend to become unlinear at high outputs.

Roy.




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