Are low power 300B amps powerful enough to drive Fritz Carrera 7 Be speakers? Would there be a better tube type amp? What tube amps work great with this speaker?
What is your room size? I own Fritz Carbon 7s and use them in a 15x12x8' room driven by a PP tube amp with 20wpc. That is more power than is needed for my room. With this amp the Carbons could fill a much larger room. That said, my thinking is a 300B SET would be on the border regarding power.
At 87db I'm going to say no. In my experience with 300b amps you need at a min 95db to have enough for dynamic swings. also to consider SET 300b's amps really only work properly in the first half of the power delivery they tend to distort fast at the upper levels of their power range. if your listening at background levels sure but if you want dynamics and a good range of volume for the normal listener then no. I ran 94db 8ohm speakers on a 300B amp and if I was honest it wasn't enough. only 8wpc but really only 4-5wpc usable IMO.
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