Until recently, I didn't think an OS9 dual Mac was much better than a single-processor for Logic on OS9. Things have changed. I learned that inserting the I/O Logic Helper plug, designating an output, then deactivating the plugin (leaving it on the channel strip), throws all the plugins on that channel strip to the other processor. Now I can maximize the usage of both processors and I'm never hurting for DSP. Another use of the I/O plugin is that it fixes the crackle problem for UAD-1 users who get problems when putting something like the Pultec on the Master fader. The fix? Put an I/O plugin on every channel with a UAD-1 VST effect, making sure you designate an input/output on the deactivated plugin, just like in the other situation. I'm thrilled right now. All my problems are currently solved. Dual 800 user in OS9.2.2 (Logic 6)! Logic has never been better. -Jer > Hi > > I work mainly with the EXS these days and am thinking of upgrading. > I've been following the logic and exs lists, but one thing has not been > discussed that I really need to know... > > My G4 400 becomes very sluggish when pushed beyond half load. I would > like to get a laptop but I'm concerned that this issue only goes away > with dual processors. Can anyone comment on how hard you can push a > dual proc machine compared to a single proc. From previous posts it is > my understanding that you can virtually max out a dual proc and the > user interface behaves the same as with no load. Is this accurate? > BTW I am running OS 10.2.4 > > I don't suppose there will ever be dual proc laptops due to power > consumption?? > > Tom