contuzzi asks a good question, especially how loud do you listen. I own an ANK 8 watt 300b and have been very surprised that it is able to drive 86db sensitivity Celestion monitors...but that is at moderate volumes . The transformers are good, and they can drive speakers that aren't very sensitive. Of course there are limits, and I have no idea of how low the impedance drops in the Sopra.
Those are great amps though...especially if you're getting them at a bargain price.
Those are great amps though...especially if you're getting them at a bargain price.