[Bill Epstein]

From the backyard to the backporch, through the tailends of 2 hurricanes and tons of humidity, my best speaker project yet, 4Pi Pros



This may be the smallest package, 18 1/2x 26 1/2x 14 1/2 that will yield flat response to 40 Hz. The close integration of horn and woofer is awesome. Wayne's recently re-designed crossover makes a huge difference. Placed in corners, the soundstage is amazing. The Eminence H290 horns needs full packing with rope caulk to eliminate a plasticky coloration but once done, the human voice sounds oh-so-natural. 97 dB sensitivity lets them play loud with my 45 amp but the impact with the 70 watt SS Classe might be even better. 

No more exposed crossover boards and horns perched on books; there is no W in WAF here but even so, it's nice to have good-looking, less obtrusive speakers.



And now, back to the Cornet project.

[analog97]

Wow!  Nice job on those horns!  Are you going to put grills on?  Also, your room looks pretty lively with all the beautiful hardwood. Do you get any brightness or other room artifacts with that set-up?    Kudos on a great build.   

[ronpod]

Beautiful woodwork! Is that veneer? Are those new speakers requiring some break in or are these the same horns that were perched on books before? Well done!

[Bill Epstein]

This room in my rented cottage in the mountains is a nightmare! I have 2- 2'x4'x2" Owens Corning 704 panels on the paneled wall and 2 more over the big window opposite plus the hideous drapes behind the speakers. Even so, there is still a slight edginess that needs to be overcome.

The 2226J drivers I've had in various cabinets since the original JBL Tent Sale back in 2001; the B&C DE-250 compression drivers are about a year old. No break-in required This box, 2.5 cu ft, is slightly overdamped and you can really hear the better control it has over the bass, especially when I use the 45 parafeed amp. Both the box size and position of the drivers to each other are the result of Wayne Parham's Pi-Align theory and the integration of the 2 drivers is flawless.

Motor down the Blue Ridge Parkway to Asheville and come and listen.

That's NBL (No Black Line) walnut veneer from Tape-ease over 3/4" marine-type plywood my local Lowes sells. First time I've used backed veneer and contact cement. It's like building kitchen cabinets! Quick and easy. Highly recommended for the novice. With PPR adhesive and raw veneer it took 6 weeks to do these monsters, book-matching, trimming, taping and clamping each side for 24 hours:



The 4'x8' sheets of NBL have spoiled me forever, at least for big projects like speakers. It took a single afternoon to veneer both the new speaker boxes.

Hat's off to guys like Jim Hagerman and Wayne Parham for providing the dots for non-technical people like me to connect.