Heritage Audio Successor – NAMM 2019 | SM Mastering

At SM Mastering, we closely monitor hardware innovations that can elevate our hybrid mastering chain, and the announcement of the heritage audio successor – namm 2019 immediately caught our attention. As mastering engineers, we are always seeking tools that provide both cohesive “glue” and rich harmonic character without sacrificing transient clarity. The introduction of this stereo diode bridge compressor promised to bring the legendary British console sound into a highly versatile, modern 1U rackmount format.

Unlike traditional VCA compressors, the heritage audio successor – namm 2019 utilizes a modern diode bridge design coupled with genuine Carnhill transformers to deliver vintage warmth with high-precision control. Historically, diode bridge compressors were beloved for their pleasing harmonic distortion and fast response, but they were often limited by fixed settings and higher noise floors. Heritage Audio engineered this unit to overcome those vintage limitations, offering stepped controls, low-noise circuitry, and an advanced sidechain filter section that is crucial for contemporary mastering and mixing workflows.

Engineering Breakthrough: Heritage Audio Successor – NAMM 2019

Many engineers compared this unit to classic British consoles, but the technical capabilities of the heritage audio successor – namm 2019 extend far beyond mere emulation, offering modern sidechain filtering and advanced transient handling. By utilizing a fully discrete Class-A signal path with custom-designed input and output transformers, it imparts a thick, creamy texture to the low-mids while keeping the high frequencies silky and open. This unique sonic footprint makes it an exceptional choice for the master bus, where subtle coloration can make a mix sound cohesive and polished.

For those looking to compare modern analog designs with digital emulations, exploring resources like the Universal Audio hardware database can provide excellent context on how classic diode bridges behave. In comparison, this modern hardware unit integrates a wet/dry blend control directly into the analog path. This allows for parallel compression inside the unit itself, ensuring that you can smash a drum bus or a full master to extract energy and sustain, then blend it back with the dry, dynamic signal to preserve the natural transient punch.

Specifications and Features

To help you understand where this unit fits in your production setup, we have compiled the essential specifications of this highly acclaimed bus compressor:

Practical Studio Workflow Tips

If you are looking to integrate the hardware into a modern digital setup, mapping the heritage audio successor – namm 2019 as an external insert in your DAW provides the best of both worlds. Here are a few professional techniques we recommend when employing this unit in your workflow:

• The Master Bus Glue: Set the ratio to a gentle 1.5:1 or 2:1. Use a slow attack (around 30ms) and a fast or automatic release. Engage the 160Hz high-pass filter in the sidechain to prevent the low-end kick and bass from triggers pumping, allowing the compressor to hug the midrange and glue the mix together smoothly.
• Aggressive Drum Parallel: Send your drum shell bus or full kit to the unit. Select a high compression ratio (such as 6:1 or 10:1), a fast attack, and a fast release. Crush the transient signal to bring out the room tone, and then use the wet/dry blend knob to mix in about 20% to 30% of this crushed signal with your dry drums.
• Midrange Density: For vocal subgroups or acoustic guitar buses, engage the mid-band boost sidechain filter. This makes the compressor more sensitive to harsh high-mid frequencies, keeping the acoustic elements warm, dense, and perfectly balanced in the mix.

For more detailed processing tutorials and guides on how to optimize your analog and digital signal paths, check out our comprehensive library of SM Mastering Audio Articles.

Conclusion

Ultimately, the stellar performance of the heritage audio successor – namm 2019 proves that analog saturation and modern control can coexist beautifully on the master bus. With its accessible price point, premium Carnhill transformers, stepped controls for easy recall, and parallel compression capabilities, it remains a standout hardware compressor for hybrid studios. It successfully bridges the gap between vintage vibe and modern precision, making it a highly recommended addition to any mixing or mastering rack.

Frequently Asked Questions

What makes a diode bridge compressor different from a VCA or Opto compressor?

Diode bridge compressors use matched diodes to control the gain reduction, which naturally introduces a rich, pleasing harmonic saturation as the signal is compressed. Unlike Opto compressors, which are slow and program-dependent, or VCA compressors, which are clean and highly transparent, diode bridge compressors offer a fast response with a distinct, warm vintage character that “glues” mixes together beautifully.

Can I use the Heritage Audio Successor for mastering purposes?

Yes, absolutely. Thanks to its stepped controls, low-noise floor, precise stereo matching, and high-pass sidechain filters, the unit is highly suited for mastering applications. The inclusion of a wet/dry blend knob also makes parallel compression incredibly easy to achieve in an analog mastering chain.

Why is the sidechain filter section on this unit so important?

The sidechain filter allows you to prevent low-frequency energy (like a heavy sub-bass or kick drum) from triggering the compressor. By filtering out these frequencies from the detection circuit, the compressor reacts to the midrange and high-frequency elements of your mix, preventing unwanted volume pumping and preserving a clean, punchy low-end dynamic structure.

Written by SM Mastering

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