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NOTE: This applies to 64 bit Mac OSX kernel.   If you are running a 32 bit Mac OSX kernel, then this should not be an issue because all the apps will have to run in 32 bit mode.   See http://support.apple.com/kb/HT4287.

 

If you're like me you've probably been watching that countdown clock on Propellerhead's web site, eagerly awaiting the release of Reason 6. One of the big new features of Reason 6 is that it's 64 bit. Well, unfortunately that will break compatibility with ReWire applications. Now I like to use Reason as a ReWire slave and Live as my main DAW / Sequencer, so that means:

  1. Start Live
  2. Then, start Reason

.. and poof! magic ReWire goodness!

When I tried this with Live 8 and my new copy of Reason 6... nope... Reason started in standalone mode. No ReWire available. Then I remembered: "Oh yeah, Reason 6 is 64 bit. It must be expecting a 64 bit ReWire master when it starts." A quick web search revealed someone having a similar problem.

The solution on Mac OSX is to start Reason 6 in 32bit mode:

  1. In Finder, locate the Reason application icon. Right click -> Get Info, or use Command-I.
  2. Check 'Open in 32-bit mode'. 
  3. Close the Get Info dialog.

Then, start Live then Reason as usual. You should see the ReWire light in the Hardware Interface device. 

6 Comments

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  1. Nov 12, 2011

    Anonymous

    Genius man. I would have not figured this one out. Works like a champ.

    1. Nov 12, 2011

      Joshua Davis

      Thanks!

  2. Jan 02, 2012

    Anonymous

    Thank you every so much for this. It works!

  3. Jan 05, 2012

    Anonymous

    For some reason I don't have the option of opening in 32bit mode - where you have "open in 32 bit mode in your get info pane, I have only "locked" and "shared folder". 

     

    What can i do to change this ?

    1. Jan 05, 2012

      Joshua Davis

      These instructions are for 64 bit OSX running 64 bit Reason 6.   Maybe the options aren't there when running 32 bit OSX, but that would make running 64 bit Reason 6 impossible.   So... not sure why that would be.

      See http://support.apple.com/kb/HT3773

  4. Apr 15, 2012

    Anonymous

    Many thanks! Spared me a laborous trip to the Reason User Forum with wise-ass RTFM comments (smile)