Depends in part on the amp's output impedance and the speaker's input impedance.
Oversimplifiying a bit, a high output impedance (low damping factor) amp will put out increased power into an impedance peak, and decreased power into an impedance dip. In contrast, a typical solid-state amp will have the opposite characteristic.
So if the speaker was "voiced" on a solid state amp, and its impedance curve has significant peaks or dips, the resulting tonal balance will probably be quite a bit different on a typical SET amp, regardless of whether the amp has enough power to drive the speaker to satisfying levels. For example if your solid-state-voiced speaker has an impedance peak at 3 kHz, it will probably sound too bright and forward with a SET or OTL amp - and you would be mistaken to lay the blame on the amplifier, as the cause would be poor synergy.
Duke
dealer/manufacturer
Oversimplifiying a bit, a high output impedance (low damping factor) amp will put out increased power into an impedance peak, and decreased power into an impedance dip. In contrast, a typical solid-state amp will have the opposite characteristic.
So if the speaker was "voiced" on a solid state amp, and its impedance curve has significant peaks or dips, the resulting tonal balance will probably be quite a bit different on a typical SET amp, regardless of whether the amp has enough power to drive the speaker to satisfying levels. For example if your solid-state-voiced speaker has an impedance peak at 3 kHz, it will probably sound too bright and forward with a SET or OTL amp - and you would be mistaken to lay the blame on the amplifier, as the cause would be poor synergy.
Duke
dealer/manufacturer