Hello I've been checking out the posts here recently trying to gather up as much info as possible for the project I'm planning. I'm looking at building the Aleph 5 amp then possibly a pre to match with it. I was hoping some of you more experienced folks may be able to steer me in the right direction. Of all the Aleph series of amps I chose the Aleph 5 to build as it meets my criteria for wattage, and component cost. I have been looking at the volksamp 60 which is a very similar amp to the aleph 5 with the exception of the 12 irf244's vs 6 of them on the Aleph 5. I was trying to decide whther to build the Aleph 5 circuit exactly as its given on the passlabs site or make some of the changes that are present in the volksamp 60. Mainly I was thinking about changing out Q5 (mpsa18) and its biasing circuitry to the one on the volks60 (ztx450). My thinking was that the change on the volks60 was probably an improvement of the older circuit. I was also wondering if there are any errors on the Aleph 5 schematics posted on the passlabs site that anybody is aware of?