- Overview
- Release Notes
- Quick Start Guide
- Specs
- FAQs
- Manual
Overview

CB9066-EQ Plugin — Download Free 7 Day Trial
Select the appropriate installer for your operating system as follows
CB9066-EQ Mac Installer:
Mac OS 10.8 (Mountain Lion) or later (compatible with macOS 11 – Big Sur)
CB9066-EQ Win 64-bit Installer:
Windows 7 (64-bit), Windows 8/8.1 (64-bit), Windows 10 (64-bit)
CB9066-EQ Win 32-bit Installer:
Windows 7 (32-bit), Windows 8/8.1 (32-bit), Windows 10 (32-bit)
Refer to the QuickStart section for more information on system compatibility and installation procedure.
The Trident CB 9066 Digital Edition Equaliser is a Software Plugin version of the original. Modeled from an original CB9066, and designed from the ground up by Trident Audio Developments, it provides an accurate, easy to install software model of the revered EQ.
Trident Audio Developments Plugin software models make an impressive addition to any digital audio workstation (DAW) application, on either Mac or PC. Available in VST3, AAX, AU (Mac only) formats.
Downloaded separately, Mac and PC versions may be installed as a 7-day trial prior to purchasing and activating a license. A purchased license can be used on up to two systems or activation locations, on either Mac or PC.
The Digital Editions Series from Trident Audio Developments embrace the very essence of what made the original Trident outboard gear classics in the past, from warm tones, punch, to unmatchable presence, faithfully recreated for the digital world using ground-breaking DSP engine and modeling techniques.
Taking full advantage of this newly created signal processing technology ensures every Trident Plugin is among the most efficient and least CPU demanding Plugins available today, meaning multiple instances of Trident Plugins may be run at any time, with the least possible negative effect on your computer’s performance.
The Trident Digital Edition Series
In the times we live in today, we can find a multitude of different recording environments, and a whole section of today’s recording world is working entirely within the digital domain. However, we passionately believe that working in the digital domain should not come at a cost for anyone wanting to work with some of the most iconic outboard gear in music production history.
With such a rich analog recording history, Trident Audio Developments are perfectly suited to offer the Digital Edition Series of audio Plugins, which bridge that gap between analog and digital recording, and accurately recreate the revered analog gear of yesterday for the digital domain. The Digital Edition Series, the opportunity to work with the iconic gear that produced so many classic hit records.
Welcome to Trident in the digital age.
Trident CB9066 EQ Release Notes
Version 1.1.0 – 29 March 2021
macOS / Windows x64 / Windows x86
Features and Fixes
• Updated Graphical User Interface (GUI)
• Fixed display issue affecting a small number of Reaper (DAW) users, whereby the plugin interface would be incorrectly sized on launch
Version 1.0.0 – 05 February 2021
macOS / Windows x64 / Windows x86
Features and Fixes
– Initial product launch
Quick Start Guide: Installation in Five Easy Steps
Step 1: Download the correct installer for your system from our Downloads page. If you are unsure which installer to choose, scroll down to System Requirements for more details on selecting the most suitable version.
Step 2: Close any currently open instances of your DAW or music creation applications.
Step 3: Open the downloaded disk image (macOS) or zipped file (Windows) and double-click on the installer file to begin the installation process. Follow the on-screen prompts.
Step 4: Once the installation process is complete, open your DAW application. Note that there may be a slight delay while your system detects and verifies your newly installed plugin for the first time.
Step 5: In most cases, an iLok activation prompt will automatically be displayed on your screen*. If this is your first installation, you may begin a free 7-day trial by clicking the Try button and following the on-screen prompts. If you have already purchased and received an activation code, click the Activate button and follow the prompts to permanently activate your plugin. Note: If you do not already have a free iLok account and/or the required iLok License Manager application, please follow the additional corresponding prompts.
*Some DAW applications may hide the activation prompt until the first time the plugin is manually selected for use in your project. If you do not see an automatic prompt in Step 5, simply add your new plugin into your DAW’s workspace and open its interface to trigger the activation stage.
If you have purchased an activation code while the 7-day trial is still active, simply open the iLok License Manager application installed on your system and click on Licenses from the top toolbar, followed by Redeem Activation Code. Follow the on-screen prompts to permanently activate your plugin.
System Requirements
Apple
The installer includes Apple Audio Unit (AU), Steinberg VST3, and Avid AAX plugin formats.
OS X 10.8 (Mountain Lion)
OS X 10.9 (Mavericks)
OS X 10.10 (Yosemite)
OS X 10.11 (El Capitan)
macOS 10.12 (Sierra)
macOS 10.13 (High Sierra)
macOS 10.14 (Mojave)
macOS 10.15 (Catalina)
macOS 11 (Big Sur)*
*Native support for Intel-based machines. Compatibility with Apple Silicon chipsets (e.g. M1) is currently emulated by macOS and may result in reduced performance; we are working to add full support for Apple Silicon hardware as soon as possible.
Microsoft Windows (64-bit)
The installer includes Steinberg VST3 and Avid AAX plug-in formats.
Windows 7 (64-bit)
Windows 8/8.1 (64-bit)
Windows 10 (64-bit)
Microsoft Windows (32-bit)
The installer includes Steinberg VST3 plug-in format only.
Windows 7 (32-bit)
Windows 8/8.1 (32-bit)
Windows 10 (32-bit)
PACE iLok
Our plugins require an iLok user account in conjunction with the installation of the iLok License Manager software application. To sign up for a free iLok account or to download the software, please visit the iLok website.
iLok License Manager is used for software activation (2 activations per license). For more information, go to ilok.com.
Supported iLok activation methods: iLok USB (2nd generation or above) or Local Machine. Two activation locations are allowed per code.
Product Specifications
Filter | Frequency | Gain | Control |
High Pass Filter | 100 Hz to 400 Hz | 0/Off to 22 dB/octave slope (continuous), sweepable | n/a |
Low Parametric | 60 Hz to 700 Hz, sweepable; Adjustable bandwidth | +/- 16 dB | In/Out |
Mid Parametric | 600 Hz to 7 kHz, sweepable; Adjustable bandwidth | +/- 16 dB | In/Out |
High Parametric | 3.5 kHz to 14 kHz, sweepable; Adjustable bandwidth | +/- 16 dB | In/Out |
Low Pass Filter | 4 kHz to 15 kHz | 0/Off to 22 dB/octave slope (continuous), sweepable | n/a |
Frequently Asked Questions
64-bit Trident plug-ins are available in VST3 (Mac and Windows), AAX (Mac and Windows), and Audio Unit (Mac only) formats. 32-bit plugins for legacy systems are available in VST3 format (Windows only).
Trident plugins are compatible with Apple macOS 10.8 (Mountain Lion) or above* and Microsoft Windows 7 or above.
*Please see System Requirements for details on using plug-ins with macOS 11 (Big Sur).
We’ve developed our plug-ins in line with the strict requirements of Apple Audio Unit (AU), Steinberg VST3, and Avid AAX frameworks. Although we have carried out extensive testing across multiple DAWs on both Mac and Windows, we cannot guarantee compatibility with every host; we recommend downloading our free demo to confirm functionality with your chosen DAW.
32-bit legacy versions are available for Microsoft Windows, in VST3 format only.
Trident has partnered with PACE in order to implement iLok – the industry standard for audio plugin security – on all of our products. You will need to set up an iLok account in order to use our plug-ins; if you do not already have an iLok account, you will be guided through the process as part of setting up your plug-ins for use. For more information, please visit http://www.ilok.com.
Each DAW has its own method for managing plugin presets; please refer to the help files within your DAW for more information. We recommend that you save your Trident plugin’s factory default state as a unique preset before starting to experiment with parameters.
All software download purchases made on our website are non-refundable. Click here to view our End User License Agreement.
Should you encounter any problems, please contact us at plugins@pmiaudio.comcreate new email
Trident CB 9066 Equalizer User Manual
Software Plug-in for VST, AU, and AAX Formats, Macintosh and PC Platforms
About the CB 9066
Parametric EQ
The Trident CB 9066 is a 3-band parametric equaliser and high/low pass filter combination, that offers a comprehensive degree of flexibility over and above that of a conventional fixed-frequency equaliser or quasi-parametric equaliser, and as such is not restricted to a few predefined frequencies. By providing the LOW, MID, and HIGH bands with a variable adjustment control of the frequency, amplitude, and “Q” (Quality Factor) or bandwidth, the CB 9066 allows the user to fine-tune the audio signal with a high degree of precision.
Each of the three parametric sections can be individually bypassed by means of the section IN/OUT pushbutton switch. Each switch will illuminate yellow when the section is set to IN and active. When the switch is selected to OUT and the EQ section is in bypass, the switch will not be illuminated.
HIGH & LOW Pass Filtering
As previously mentioned, the CB 9066 also includes HIGH and LOW PASS filters to further enhance audio signal flexibility. This is provided in the form of a closely modeled Sallen-Key filter design with variable frequency (Hz) and a SLOPE (dB) control. As a result, the CB 9066 provides for a maximum 22dB per octave SLOPE, which can be bypassed in varying degrees thereby controlling the overall SLOPE rate (the frequency (Hz) can be adjusted likewise).
The SLOPE control ranges from 0/OFF through to 22dB per octave, allowing anywhere from smooth, through to hard cuts to be made to the audio signal.
Input Over Correction
When using the CB 9066 Plugin, if extreme adjustments are to be made by arranging coincident boosts in overlapping sections of the three parametric frequency ranges, then it may be necessary to attenuate the input to the Plugin. This “overcorrection” may be required when the unit is used to simulate “phasing” effects, and this may be accomplished by using the maximum boost in conjunction with a sharp “Q” and sweeping through a frequency range.
Sharp “Q” Auto Makeup Gain
On occasion, with a given amplitude of boost or cut at a selected frequency, varying the response from broad “Q” to sharp “Q” produces an apparent reduction in loudness. This is due to the reduction in sound energy during the transition from broad to sharp “Q”, although the amplitude remains constant. To overcome this effect, the CB 9066 embodies automatic compensation, adding a further 3dB of a boost in the sharp “Q” maximum boost condition. This allows the user to focus on achieving the desired audio result, rather than worrying about how to achieve this, whilst having compensate for a lack of output level.

Plug-in Controls
HIGH PASS
- Frequency: Rotate the knob to set the desired high pass corner frequency between 100 Hz and 400 Hz.
- Slope: Rotate the knob to select the desired high pass slope between 0 (OFF) and 22 dB/octave.
LOW
- Filter Controls: Rotate knobs to adjust the gain (dB), frequency (Hz) and Q factor of the low band EQ.
- Filter In/Out Selector: Click the button to toggle between active (IN) and bypass (OUT) modes of the low band EQ.
MID
- Filter Controls: Rotate knobs to adjust the gain (dB), frequency (Hz) and Q factor of the mid band EQ section.
- Filter In/Out Selector: Click the button to toggle between active (IN) and bypass (OUT) modes of the mid band EQ.
HIGH
- Filter Controls: Rotate knobs to adjust the gain (dB), frequency (Hz) and Q factor of the high band EQ section.
- Filter In/Out Selector: Click the button to toggle between active (IN) and bypass (OUT) modes of the high band EQ.
LOW PASS
- Frequency: Rotate the knob to set the desired low pass corner frequency between 4 kHz and 15 kHz.
- Slope: Rotate the knob to select the desired low pass slope between 0 (OFF) and 22 dB/octave.
iLok License Manager is used for software activation (2 activations per license). For more information about iLok License Manager, please visit ilok.com.