Since last year we enclosed our porch for a listening room. That means I lost my outdoor grilling and listening area. So, this spring we put a deck on and I had the opportunity to search for a new pair of weather resistant speakers. The speakers I used last year were Definitive AW6500s. They were very nice sounding with impressive bass, but I've since sold them. This year a found a deal on a pair of JBL Control 29-1s. These are professional speakers used in amusement parks and clubs. They sell new for between 7-800 per pair, but I got mine for $200 used. I bought them from a guy selling them out of his storage locker and had no means to test them out. Of course he told me they were 100% operational, and of course they weren't. One horn was fried. One diaphragm and $22 later they are now alive and kicking.
I have these running from the Zone 2 outputs of my B&K preamp to a Carver TFM-35x. The speakers are said to handle 300 watts, so I think it's a good match. They sound great! Much better than the Definitives. The 8" woofer put out plenty of bass (above 43 hz) and the horns are very detailed without sounding squawky. They are efficient too. At around 60 watts (according to the Carver meters) they easily fill the back yard with full sound.
Hers are a couple pics...