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 UAD 4K Buss Compressor by Universal Audio is a Virtual Effect Audio Plugin for Windows and Mac OS X. It functions as a VST Plugin, an Audio Units Plugin, an RTAS Plugin and an AAX Plugin. UAD Hardware is required.
UAD 4K Buss Compressor
Product UAD 4K Buss Compressor
Developer Universal Audio
Price (MSRP) $199
Type / Tags
Plug-in, App & Soundware Format(s)
Hardware Powered  
Operating System Availability
Download Released
 8.4  Downloads Released
 8.4  Downloads Released
Miscellaneous Information
Copy ProtectionUAD Hardware Specific

The UAD 4K Buss Compressor emulates the console dynamics from the SSL 4000. With its simple control set and transparent compression characteristics, UA says it has captured this icon of record production with exacting accuracy. The UAD 4K Buss Compressor is a circuit emulation of the 4000 G+ and a companion to the UAD 4K Channel Strip.

The simple control set of the UAD 4K Buss Compressor has fixed Attack and Release controls with an Auto Release that incorporates a program dependent response. Three fixed ratio settings are available: 10:1, 4:1 and 2:1. Continuous Threshold Control and Make-Up Gain along with a compressor bypass are also included.


  • UAD 4K Buss Compressor emulates hit-making sound of SSL 4000.
  • UAD circuit emulation of the 4000 G compressor.
  • Specially tailored dynamics ideal for compressing the full mix.
  • Fixed Attack, Release and Ratio settings.
  • Continuous Threshold and Make-Up Gain settings.

A Note about UAD Powered Plug-ins
UAD-2 and UAD-1 Powered Plug-Ins run exclusively on Universal Audio's UAD DSP Accelerator Cards. All available Powered Plug-Ins are included in the UAD Software Installer/Updater Package; and every Plug-In title has a separately activated 14-day trial -- so users can try before they buy, at their own pace. Once a user decides to purchase a Plug-In, they can click on the Plug-In toolbar "Buy" button, which automatically takes them to the www.uaudio.com website and carts the plug in; or this can be done manually via browsing our webstore. Once the purchase is complete, a downloadable Authorization File is made available. Users simply drag and drop this Auth. File into the UAD meter, and the Plug-In is authorized. UAD-1 users can transfer Plug-In licenses to UAD-2 format for free (one time only). Via Customer Support, Universal Audio also allows registered UAD owners to sell their UAD card(s) with Plug-In licenses, transferring the licenses to the new card owner (subject to Universal Audio approval).

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