A friend of mine uses a LA audio 300B amp (mono amps 8 watt), it's a very fine combination. 3.8 Ohm isn't that low, if i remeber right they have a efficiency of 92 db, i think this is more important.
Which amp matches best my JM Lab Mezzo Utopia ?
I have clearly a predisposition to single ended and Class A design. Push pull does not apply. The speakers are a demanding load though. They go down to 3.8 ohms.