For sale is my Manley Stereo Variable Mu Limiter Compressor – Mastering Version, in very good working condition.

This is the Mastering Version with stepped controls, making it especially well suited for stereo bus and mastering work where precise recall and channel matching are important.

The unit uses 6BA6 gain-reduction tubes, consistent with Manley’s T-Bar configuration, and I will also include replacement/spare tubes with the sale.

The Variable Mu is one of the classic stereo tube compressors used in professional mixing and mastering. It can provide everything from very subtle glue and level control to more obvious tube compression and harmonic character, while maintaining a smooth, musical presentation.

Features include:

• Mastering Version with stepped controls
• Stereo tube variable-mu compression
• T-Bar / 6BA6 gain-reduction tube configuration
• Sidechain high-pass filter
• Dual-mono or stereo-linked operation
• Adjustable attack and recovery
• Limit / Compress modes
• Large illuminated VU meters
• Transformer-balanced analog signal path
• Excellent for stereo bus and mastering applications
• Includes additional replacement/spare tubes

The unit has lived in a professional studio rack and has been treated carefully. It is in very good condition, functions properly.

Cosmetically it presents very well, with normal minor signs of rack use visible in the photos.

I’m only selling it because I am changing some of the analog equipment in my mastering chain.

This is a great opportunity to pick up a Mastering Version Variable Mu with the desirable 6BA6/T-Bar-style tube configuration along with spare tubes.

Please review the photos for the exact cosmetic condition.

Professional studio equipment — properly maintained and ready to work.