Just going to jump in here to say that both the Strategy and Prodigy are really hot rodded amps and it's becoming more and more difficult to get consistent quality production KT-88 tubes that can handle the high voltages and currents that are necessary under the wide variety of real world conditions that these amps see in the wild (and getting more and more difficult every day it seems) . They are an expensive tube (especially a set of 8), and when reliability suffers the costs of replacements can get pretty high awfully quickly. Since our warranty is both long and liberal (as many of you are aware of, and some of you have taken advantage of), it has just become impractical to continue with such a costly, almost custom build type amp. There are some still available throughout the dealer network, as well as showing up on the TB classifieds. The warranty is transferable, so if you want one just keep your eyes open.
As far as the Powerhouse cabinets, the days of players seeking out 100+ pound cabinets is coming to a close. Absolutely nothing wrong with the speaker, just that tastes have changed away from this to cabinets like the Subway and similar lighter weight more compact cabinets. There are plenty of new and used PH cabinets out there so there's certainly no shortage plus we continue to stock all the repair parts and warranty service should it be necessary.
Don't worry though, I am always working on new designs and listening closely to what Talkbass players are looking for, as you all seem to be ahead of the curve more than anywhere else. Now's your chance to speak up!