I checked the PA3s PC board, and there are no problems with the parts even with a 26V power supply.
The 19V/12A power supply has plenty of room. In reality, PA3s can operate sufficiently with about 5A.
Thanks! Do you know if this amp is suitable for use with 4 ohm speakers. What i mean is most amps can handle 4 ohm loudspeakers as the spec sheet usually states, but they mean a speaker with a nominal mpedance of 4 ohms, the minimum impedance tends to be about 2 ohms less.
Looking at speaker frequency response graphs and impedance curves, there is usually a speaker resonant peak at 400hz or so, then the impedance dips before and after this peak, usually dipping down to 2 ohms at approximatly 1khz. For some speakers the minimum impedance can go down to 1.8 or 1.5 ohms.
Would this PA3s amp be happy with this, driving speakers that can go down to slightly less that 2 ohms minimum impedance