Heritage Audio HA-609A Dual Mono / Stereo Compressor/Limiter Plug-In
A diode-bridge compressor/limiter plugin delivering the tone, weight, and cohesion of a modern-classic analog design. Based on the HA-609A hardware, it uses component-level modeling to accurately reproduce the full signal path, including gain reduction behavior, harmonic saturation, and transformer coloration.
Designed for both bus and track processing, the HA-609A provides the punch, density, and “glue” associated with classic diode-bridge compression, while maintaining clarity and musical dynamics. Its dual mono and stereo operation modes offer flexibility across mixing scenarios, from individual sources to full mix bus duties.
The original hardware’s discrete Class-A topology and transformer-based design are faithfully captured, resulting in a plugin that delivers authoritative compression with a rich, controlled low-end and forward midrange presence. Fast attack options for both compressor and limiter stages allow precise transient shaping, making it suitable for modern production workflows.
Key Features
- Diode-Bridge Compression: Classic compression character with strong punch and musical response
- Dual Mono / Stereo Operation: Flexible routing for track, bus, and mix applications
- Component-Level Modeling: Accurate emulation of the full analog signal path
- Integrated Limiter Section: Additional control for peaks and dynamic shaping
- Mix Bus Ready: Ideal for glue compression, drum buses, vocals, and instruments
Renewal Details
- Eligibility: Perpetual license (electronic download)
- Grace Period: Not applicable
- Continuous Access: Full access after purchase
What’s Included
- HA-609A compressor/limiter plugin license
- Software download
The HA-609A plugin delivers classic diode-bridge compression with modern precision, making it a reliable tool for adding cohesion, punch, and character across mixes. Its combination of detailed modeling and flexible operation makes it suitable for both subtle bus processing and more assertive dynamic control.