Most of the 300B amps I've heard are low power vs. push pull, but still intended to mate with dynamic speakers, not horns. VAC Renaissance 30/30 is a particularly nice one. I've owned 845 amps from Dehavilland and listened to plenty of 211s, GM70s and similar. Most of those capture very similar magic to 300Bs, but their main advantage is the ability to drive more dynamic speakers that need the extra power, clearly not an issue here. Those SETs are great matches with 90-95db dynamic speakers but not so sure about with your horns.
Not my area of experience, but have you listened to 2A3 or similar flea powered amps? Those are often paired with horns at 99db & up. Cheers,
Spencer
Not my area of experience, but have you listened to 2A3 or similar flea powered amps? Those are often paired with horns at 99db & up. Cheers,
Spencer