WHAT'S THE DEAL WITH WATTS?


I'm considering acquiring a new (for me) integrated, under $2k, to drive my KEF full range speakers. They are very efficient (93db) , 4ohm and rated for 50 - 200 watts.  It seems that a good amp with 80 or 100 watts per channel at 8 ohms will take these speakers to any volume I'd want to experience in my medium sized living room.  So what advantage/benefit in sound am I going to get with 150 -200 watts, or more, per channel? Is it worth spending more for extra power that will never really be demanded?  
larstusor

Showing 1 response by tls49


From looking at larstusor's previous threads, the speakers are KEF 105/3. The spec for sensitivity is 93db/1m/2.83v. Since this is a 4 ohm speaker, that 93db is using 2 watts. The sensitivity for 1 watt will be 90db, so not quite as high as it appears. Wattage can be very misleading. A 60 watt Pass class A amp will drive and control these speakers much better than a very cheap 200 watt amp. Considering your budget, you should be able to find a good quality amp of 100-150 watts @ 8 ohms that doubles or almost doubles into 4 ohms.