wcc10,
You have received some very good responses here. Al gave you the definitive answer,= your speaker is designed to be driven by a transistor amplifier. Small, inefficient and striving to produce bass(via low impedance). I'm a tube guy but tubes usually won't match well with this type of speaker design. As has been said, tubes work better with higher impedances with a relatively flat impedance range. If you ever decide to try a tube power amplifier, get speakers with friendly and flat impedances. With your speakers, stick with solid state amplifiers.
Charles,
You have received some very good responses here. Al gave you the definitive answer,= your speaker is designed to be driven by a transistor amplifier. Small, inefficient and striving to produce bass(via low impedance). I'm a tube guy but tubes usually won't match well with this type of speaker design. As has been said, tubes work better with higher impedances with a relatively flat impedance range. If you ever decide to try a tube power amplifier, get speakers with friendly and flat impedances. With your speakers, stick with solid state amplifiers.
Charles,