I like the sound of the Pi4 bass base with the Pi7 mid and top. I do have corners and can build the Pi7 corners but at this time I have a deluge of speaker carcassess! So my thinking is to re-use the LaScala bass bins (that I lovingly put together - weep!) to accomodate the 2226h - it appears to be about the right size and I can jig saw out some of the front bow of the dog box and add a font panel cut out for the driver. The rest of the dog box together with the reverse horn will probaby aid in attenuating the rear wave (aka B&W Nautius - reverse snail - or at minimum act as a good brace).

Many thanks

Stefan