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.
Congratulations on owning such fine speakers. I have a pair of Kef Reference 3-2. 91dB efficiency at 4 ohms. I drive them with a Conrad Johnson LP66S tube amp using 6550 tubes. It delivers about 70 watts per channel in push pull mode. My CJ preamps volume control goes up to 100. If I push past 50, I most likely will blow the windows out of the house. |
@curiousjim I believe so. I also have a pair of very nice SVS unported sub woofers working in the system as well. They have their own Class D power amps rated at (If I recall properly) 600 Watts x 2. I have a tendency to play my music louder than normal since my hearing is less than stellar. |
