WINDOWS Operating System • Windows XP Service Pack 2 (all versions) or Windows Vista (32 bit versions only) • Pro Tools 7.1 or higher (only if using the Liquid 4Pre TDM / RTAS plugin) Computer • Windows XP compatible PC (Pentium© 4 1GHz or higher recommended) • Network card supporting ethernet 10Base-T, 100Base-TX, or 1000Base-T CPU/Clock • 1.0 GHz Intel or compatible • 2.0 GHz Pentium© 4 or Xeon recommended Memory (RAM) • 256MB or more • 512MB or higher recommended APPLE MAC Operating System • Mac OS X Tiger (10.4.11 or later) - OS Version subject to change • Pro Tools 7.1 or higher (only if using the Liquid 4Pre TDM / RTAS plugin) Computer • Apple Mac Power PC G4, G5 or Intel Mac (any) CPU/Clock • G4/800 MHz (minimum) • G4/1.5GHZ or higher recommended Memory (RAM) • 256MB or more • 512MB or higher recommended