It depends on how loud you listen & how big your room is..If you listen at levels around 80db.in a small-medium size room 15 watts of Class A power will,IMO,be plenty..If your listening at levels above 80db.in a big room then you’ll need at least 50 watts Class A..
Another factor to think about is the impedance characteristics..Your speakers may be 8 ohm nominal but they could drop far down into the 3 ohm region & have dramatic phase swings,which are highly stressing on an amp...
How much power needed to drive 91db speakers?
Sonus Farber lists the sensitivity of my speakers at 91 db SPL@ 1 meter @4 ohms. They also say I should use 50-450 watts of power. My PS Audio amps pump out 500 watts @4ohms, so the max isn’t a problem, but if I switched to something 15-50 class A watts, would that be more than enough power?
Thanks in advance.
Showing 2 responses by freediver
@curiousjim ,I have a small Chinese made Pure Class A integrated amplifier that is based on the original Sugden A21..Puts out 15wpc.@8 ohms & can drive a 4 ohm speaker... |