Wayne Parham Messages: 18787 Registered: January 2001
Illuminati (33rd Degree)
Please choose one first and I'll send plans when you do.
The boxes are close to the same size, the tonal balance is about the same and the patterns are similar too. The biggest difference is the four π is about 3dB louder at the same voltage drive.
Most people choose one or the other based on the driver families available. The top-of-the-line three π loudspeaker uses the Acoustics Elegance TD12S woofer and the high-end four π speaker uses the JBL 2226. So you're choosing between AE and JBL when you make the decision.