Ya I believe that 1996 was the last year for Lanzar and was purchased by like the Pyramid company not sure what corporation that is. I am just a little curious though maybe some of you professionals can lead me straight here.. I personally don't believe amps are made to same standards as back in the early 90's and I am guessing to make it affordable to everyone. I remember i think that 4 channel amp ran about 900 bucks for 100 watts of power.. (25X4) the opti 50c of course was i think 1300 for 50 watts (25x2) knowing that is kind of a cheater amp.. It was a lot of fun competing back when they used to go by power class at 4 0hms.. most of the time was competing with 0-300 watt class. But if i remember right the big thing that Lanzar was proud of was the 30-volt DC to DC switching power supply they were using. Discrete Fully Complimentary Triple Darlington Output Stages, I know this was 10 years ago but are these kind of like the minimum requirements for todays amplifiers.. Just curious.. I know I tend to ramble a little bit about this old equipment..vibe's are decent budget amps, but the Optidrives built by Zed Audio were built to last a lifetime. The may both say "Lanzar", but the initial quality of the two is VERY different. I've used several of both.