this has been discussed in other threads, like this Aragon Stage One thread, but i thought it could use it's own thread as a single source of info for interested members. basicly, Mondial is going to offer current ACT-3 owners two options: 1. trade in your ACT-3 for $1500 credit towards the purchase of the just released $4000 Aragon Stage One pre-pro. OR, 2. upgrade your ACT-3 to "nearly Stage One performance" (Mondials words) for $900. upgraded features include: 7.1 surround Pro Logic II, dtsES and a few others 24-bit/192kHz DAC's for all 8 channels 8-ch analog pass-thru Mondial had originally expected to offer the upgrade beginning in May (with a four month window of opportunity), but on 28Mar posted that it's still about 90 days out, ie end of June. i wouldn't be suprised to see it slip some more though, as these things often do. i've paraphrased info here that i've gleaned from the Acurus forum on Klipsch/Mondial's web site. you can reach that forum thru links at www.klipsch.com. the thread specific to the upgrade is several pages long but a very interesting read.