After years of accepting the colorations of my 12 inch 96db full rangers, I just prototyped a pair of Bohlender Graebener 4 ohm satellites.
They have a nice flat 4 ohm impedance, which my old style class A can deliver 15 watts to per channel.
Not quite an open baffle, they are sized to act as a passive highpass augment and fit on stands, while an open baffle panel handles bass to 80 hertz with its own larger AB amplifier.