This document contains the most recent technical information for the OS 9 VST platform. Please review all the information before installing or using the product.

Important Information

• The Host Application Notes contains important optimization information for specific audio hosts. Be sure to review the notes for the host application(s) you are using.
  
  
• The UAD drivers and plugins are a matched set. Some plugins depend on others to provide shared functionality. Keep the complete installed set of UAD plugins in the same location. Do not rename the UAD plugin files. If you are using multiple VST host applications, make sure they all have the same version of the UAD plugins installed.
  
  If you also use UAD Powered Plug-Ins for Mac OS 9 MAS, the software installed in this Mac OS 9 VST release is compatible with the same version of UAD Powered Plug-Ins for MAS. The driver files are identical in the same MAS and VST versions. To avoid incompatibility issues when using MAS and VST, make sure all installed UAD Powered Plug-Ins components are the same version.
  
  
• UAD Plate 140 does not support sample rates above 96kHz.
  
  
• The Pultec and Pultec-Pro plugins introduce an additional 13 samples of delay due to upsampling. You may enter a value of 13 in the "Samples" parameter in DelayComp or TrackAdv to compensate. (See "Delay Compensation" in Chapter 3 of the UADManual.pdf for more information.)
  
  
• The Precision Mastering Series plugins (Limiter and Equalizer) also introduce additional latency. This is not an issue when used in their typical configuration (on an output) but when used on inserts, you may use the "Samples" parameter in DelayComp or TrackAdv to compensate. (See "Delay Compensation" in Chapter 3 of the UADManual.pdf for more information and specific sample values.)
  
  
• We strongly recommend allocating as much memory as possible to the host application (while still leaving enough RAM for the operating system). If you get a "plugin failed to load" message when loading a UAD plugin or the UAD plugin window appears to be missing some controls, it is probably because not enough host memory has been allocated.
  
  
• Logic Audio requires separate monophonic versions of VST plugins for mono audio tracks. For this reason, the UAD Powered Plug-Ins Installer includes the option of installing mono versions of the UAD plugins. It is recommended that you install the mono plugins only for use with Logic Audio, because most other host applications can use the standard UAD plugins for mono audio files.
  
  
• DSP load estimates are slightly overestimated and may vary depending on the plugin. This means the Load Limiting feature may reject new plugins at lower CPU values than specified. Note: CPU Load Limiting is disabled by default.
  
  
• UAD Plate 140 can be constrained to always or never use Wet Solo mode by setting its global defaults. Click here for more information.

Information Specific to Dual Processor Systems

• Certain ASIO drivers may not work when MP mode is enabled in the host application. We recommend contacting the ASIO hardware manufacturer to confirm their ASIO driver supports dual processor systems.
  
  
• The UAD plugins themselves do not realize any host CPU gain when MP support is enabled. They may use a slightly larger amount of host CPU in MP mode when compared to non-MP mode. In general, the host CPU requirement increases as ASIO buffer size decreases and/or the sample rate increases.