Stereo Loudness Bundle by TC Electronic combines the LM2n Loudness Radar Meter and LC2n Loudness Correct for accurate loudness measurement and correction in mono and stereo, ensuring compliance across delivery platforms.

Purpose and Components
The Stereo Loudness Bundle pairs two complementary tools: the LM2n Radar Meter for precise measurement and the LC2n Loudness Correct for applying corrections. Together, they address the complete loudness workflow, from analysis to final normalization, for mono and stereo material.
This bundle is designed for music and post-production professionals who need to meet broadcast and streaming loudness standards. It provides a clear path to delivering loudness-compliant audio without guesswork, integrating seamlessly into existing production chains.
Key Capabilities
The LM2n plug-in runs natively in Pro Tools and other major DAWs, supporting AAX, AU, and VST formats. It offers an innovative Radar Display that visualizes loudness history at a glance, making it easy to spot problematic sections. The meter is compliant with all relevant loudness standards, ensuring accurate readings.
LC2n functions as both an AudioSuite plug-in in Pro Tools and a standalone application with watch-folder capability. The standalone version automatically batch-normalizes multiple audio files, significantly speeding up delivery workflows. It also includes a mastering-grade true-peak limiter derived from the legendary Brickwall 2 processor.
Workflow Integration
In a typical session, you would insert LM2n on your master bus to monitor loudness and true-peak levels in real time while mixing. After achieving a suitable balance, use LC2n as an AudioSuite plug-in to normalize the final mix to your target loudness, ensuring it meets platform specifications.
For larger projects, set up the standalone LC2n with a watch folder. Drop multiple audio files into the folder, and they are automatically processed to the desired loudness, thanks to offline measuring in Pro Tools and other DAWs. This streamlines delivery for album mastering or batch file processing.
Practical Applications
The bundle is ideal for mastering engineers preparing tracks for streaming services that enforce loudness normalization. It is also useful for podcast and broadcast producers who must adhere to specific loudness regulations. The true-peak limiter ensures that the final output has no intersample peaks that could cause distortion.
For post-production houses handling multiple episodes, the standalone batch normalization capably ensures consistent loudness across all files. The visual Radar Display helps in quickly assessing the loudness profile of a whole track, saving time during QC. This makes the bundle a practical choice for any professional requiring reliable loudness compliance.
Key features
- Includes LC2n Loudness Correct and LM2n Loudness Radar Meter
- LM2n supports AAX, AU, and VST formats for native use
- Innovative Radar Display for at-a-glance loudness analysis
- Compliant with all loudness standards
- Offline measuring in Pro Tools
- LC2n includes mastering-grade true-peak limiter (Brickwall 2)
- Standalone app with watch folder for batch normalization
Best for
Music and post-production professionals who need to deliver mono or stereo audio to platforms with strict loudness requirements. Ideal for mastering engineers, podcast producers, and broadcast facilities seeking precise measurement and efficient batch normalization in a unified bundle.