Plugin Boutique’s Mixing Month promotion features Smooth Operator Pro from Baby Audio at nearly 40% off, available until March 31st, 2026.

This sale drops the regular price of $129 USD to $79 USD for the Windows and Mac plugin, which supports VST, VST3, AU, and AAX formats.

Smooth Operator Pro is an audio plugin that removes unnecessary frequency energy from tracks, resulting in cleaner mixes. It eliminates mud and harsh resonances while allowing surgical fixes to specific problem areas through flexible per-node control.

Music producers and mix engineers use it to refine audio during the mixing stage, streamlining the process of achieving balanced sound.

This deal provides substantial savings on a professional tool during Plugin Boutique’s Mixing Month, making advanced frequency management more accessible.

As part of its Mixing Month promotion, Plugin Boutique has announced a limited time sale on Baby Audio’s audio plugin which removes the frequency energy your tracks don’t need.

Offered at nearly 40% off, Smooth Operator Pro lets users achieve cleaner mixes by eliminating mud and harsh resonances, and fix specific problem areas surgically with flexible per-node control.

We’ve engineered the new Pro version without compromising on the fast workflow that made Smooth Operator 1 so popular. Set the desired target curve, then turn the global threshold knob until the plugin starts rebalancing your audio. Dive into deep settings optionally for total control. Smooth Operator Pro removes excessive frequency energy as and where it occurs. Dial it in gently and it will feel like lifting a blanket from your speakers.

More information: Baby Audio