Today I've made a "footprint model" of the Seven Pi Pro, and I do have room for them. However, after my experiments with the Four Pi in the corners, I'm not sure that I will like the imaging of the cornerhorns. By imaging I mean that it the instruments/voices comes from different spots in front of you. My room is L-shaped, and my listening position is not exactly in the middle of the two corners I intend to use.
Is it a good solution to use the Seven Pi as a "sub" up to maybe 60-80Hz(?), combined with a One, Two or Three Pi (maybe a standmounted coax)?

TIA
Frode

I'm sure cornerhorns will give me plenty of bass, but you didn't answer my last question. Is it possible use the cornerhorn as a "sub" with two "satelites" where I normally have my speakers? If so, how high would you recommend to use the 2226H? How well does the One, Two and Three Pi perform from this XO point and up, compared to my Four Pi?

TIA
Frode

PS! Please mail me the Seven Pi plans!

The real benefit gained by the π cornerhorn arrangement is the uniformity of its pattern, its spectral balance throughout the room and the large "sweet spot" it provides. They have a natural tendency to balance the stereo image over a fairly wide area in the center of the room. This is due to their uniform directivity and their 45° toe-in, causing the forward axis to cross. All these things are lost when using a single π cornerhorn as a bass bin.

• Making speakers "disappear"

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I have the Pi7 Corner horns and I wouldn't use a corner horn as a sub if it's being used for a surround system.

From what I know of surround sound the bass is not supposed to be directional. A rumble of a tank or herd of horses rumbles, but is supposed to give you the feeling you are IN the picture. One cornerhorn would be too identifiable for where the rumble was coming from. As per Waynes explanations the horn is the walls, ceiling, and floor with the corner horns. I expect with only one horn one side of the room would be loud and the other sort of void. Would this be true Wayne?

Pi 7's make very serious amounts of bass / treble with absolutely no effort at all so from a technical point of view you would get a lot of sound. Listening to these speakers last night (not even at high volume) it came to mind that the bass was more like atmospheric pressure changing than listening to music. If you've ever heard them, you'll understand.

Good luck with putting your system together.

Grant Marshall.

I've just finished moving my Four Pi around in my corners for testing. I did an experiment and pointed them into corners and the result was magic! The bass becomes much more full and natural, it even sounds deeper and more controlled. Forget the satelites - I can't wait to build my seven Pi's!

Regards
Frode

I still prefer to have subwoofers placed physically close to mains, and I prefer symmetry. I wouldn't ever use a single sub, not so much because of localization but because there is no averaging of room modes. Better to use at least two woofers. The best thing for smooth bass response is averaging, which requires multiple woofers. Keeping the woofers within 1/4 wavelength of the mains at crossover and through their overlapping frequency range is important to prevent a cancellation notch, but having subs spaced further than 1/4 wavelength from each other (and from walls) helps to smooth out room modes.