I was thinking about all the cool cabinet designs Ampeg has put forth over the years. They put alot of R & D dollars into a design then the product disappears after a short while. Mabey it's the Darwinian nature of things: a good design will stand the test of time (SVT810HE). I remember the 70's era V-4B cabinet: a single 15" folded horn affair..how about the ISOBARIC cabinet..that was wild. Who else can recall a nice design that never really caught on? I'm using a PR1528 and I really like it! It really cranks out a full spectrum of sound,especially the lows. Who else has the 1832? Is it as good as the advertisements made it out to be?