"Arny Krueger" wrote in message
...


You might want to rerun your math with the following practical
adjustments:

(1) Consumer power ratings are almost universally taken with an 8 ohm
load.

(2) In addition, power amps sold in the US market have to be somewhat
conservatively rated because of FTC preconditioning.

(3) The AR3 dips to about 3 ohms within the bass range.


Then you are talking about a 267W amplifier, not a 100W one (the voltage
limit that gives 100W into 8 ohm gives 267W into 3 ohm) if the amp can
deliver the 9A rms that that implies then it's a 267W amp.

Even then to blow a 5A fuse you would need to be running a continuous
sinewave into the speaker at the frequency of the 3 ohm dip, not likely even
with heavily compressed music.

David.