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Boss CE-1 Chorus EnsemblebyUniversal Audio
 Boss CE-1 Chorus Ensemble by Universal Audio is a Virtual Effect Audio Plugin. It functions as a VST Plugin, an Audio Units Plugin, an RTAS Plugin and an AAX Plugin. UAD Hardware is required.
Boss CE-1 Chorus Ensemble
Product Boss CE-1 Chorus Ensemble
Developer Universal Audio
Price (MSRP)
Type / Tags Modulation (Flanger / Phaser / Chorus / Tremolo)
Plug-in, App & Soundware Format(s)
Hardware Powered  
Operating System Availability
Download Released
Downloads Released
Downloads Released
Miscellaneous Information
Copy ProtectionUAD Hardware Specific

In 1976, BOSS originated the chorus effect pedal. Its warm, analog stereo chorus and vibrato have been heard on countless tracks--particularly on guitars, bass and electric keys. Universal Audio was commissioned by Roland to accurately model the CE-1.

The CE-1 provides a choice of either chorus or true pitch shifting vibrato. The vibrato/chorus "stomp switch" allows for chorus or vibrato effects, while the normal/effect stomp switch bypasses the effect. One knob is dedicated to the chorus intensity, while two knobs allow manipulation of the vibrato depth and rate. When used with stereo tracks, the CE-1 may be used in "classic mode" (L=direct, R=delay) which behaves exactly as the original pedal or "dual mode" which acts as two CE-1's patched using their mono outputs (direct+delay). In this mode, the LFOs are 90 degrees out of phase (quadrature) for maximum L-R spread.


  • Accurate model of original CE-1 chorus effect.
  • True pitch shifting vibrato.
  • Look, controls, and operation of its analog cousin.
  • Input gain control and bypass.
  • "Classic Mode" or "Dual Mode" configuration with stereo tracks.

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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