Wayne Parham Messages: 18889 Registered: January 2001
Illuminati (33rd Degree)
That's right. System impedance will drop gradually from 8Ω to 4Ω above 1kHz. It also has some slight peaks in the bottom octave due to system resonance. All in all, the two π speaker has a benign impedance curve and is a very easy load for an amplifier to drive.