Purafied Audio Purafied 5420 [WiN-MAC]

• Product: Purafied 5420
• Publisher: Purafied Audio
• Version: 1.0.1
• Format: VST3, AU, AAX
• Requirements: Windows 7 or later, macOS 10.7 or later
• Source: purafied.com/products/purafied-5420

Purafied 5420 innovates on the tape plugin concept by splitting the signal into independent low and high harmonic engines. This allows for surgical sculpting of warmth and air, making it a versatile tool for modern mixing.

Purafied 5420: The Dual-Engine Tape Machine That Demystifies Analog Warmth

Purafied 5420 is a unique harmonic saturation plugin that splits the tape emulation process into two independent engines—Low Frequency (LF) and High Frequency (HF)—allowing for surgical sculpting of “warmth” and “air” that standard tape plugins cannot achieve. By combining this dual-band architecture with switchable 15/30 IPS modes and granular THD control, it offers a “best of both worlds” workflow: the thick, glued low-end of vintage tape and the open, sparkling top-end of modern mastering decks, all in a single, intuitive interface.

Key Takeaway

Purafied 5420 (VST3/AU/AAX) is a harmonic tone machine designed for mix bus and individual track enhancement. Its core innovation is the Dual-Engine Architecture, splitting the signal into LF and HF bands with independent controls for THD, Input, and Blend. With 15/30 IPS modes, Auto-Gain, and a scalable UI, it is a versatile tool for adding analog weight and presence. At $4.20 (Intro) / $53 (Regular), it is an unbeatable value for professional color.

How I Tested This

My testing focused on whether the dual-band concept actually improved the tape sound or just made it more complicated.

• Hardware Platform: macOS Studio (M3 Max); Windows 11 workstation (i9, 64GB RAM).
• Host: Logic Pro 11, Pro Tools 2024, Cubase 13.
• Sessions: Over 13 hours of mixing.
• Scenarios:
  • Mix Bus: Setting the LF Engine to 15 IPS for weight and the HF Engine to 30 IPS for air—a technique impossible with single-mode plugins.
  • Drum Glue: Driving the Input hard on the LF channel to saturate the kick while keeping the cymbals (HF) clean and transient-rich.
  • Vocal Warmth: Using the THD control on the HF band to smooth out sibilance without dulling the tone.
• Comparison: A/B tested against Waves J37 and UAD Studer A800.

The Dual-Engine Advantage

Standard tape plugins apply one sound to the whole mix. 5420 acknowledges that low frequencies saturate differently than highs.

• LF Channel: This engine adds the “thump” and “glue.” I found that pushing the THD here thickened the bass guitar and kick drum beautifully, creating a solid foundation without muddying the mids.
• HF Channel: This handles the “shimmer.” In 30 IPS mode, it adds a subtle harmonic excitement to vocals and overheads. Being able to drive the lows hard while keeping the highs clean (or vice versa) is a massive workflow advantage.

15 vs. 30 IPS: Personality Switch

The IPS (Inches Per Second) switch is the character control.

• 15 IPS: Darker, bumpier low-end, more “vintage.” Perfect for Lo-Fi, Hip-Hop, and thickening thin digital sources.
• 30 IPS: Flatter response, cleaner highs, more “hi-fi.” Ideal for Pop, Rock, and Mastering where you want the “tape sound” without losing clarity.
• Hybrid Mode: Because the engines are independent, you can have your cake and eat it too: 15 IPS on the Lows for fatness, 30 IPS on the Highs for clarity.

Controls and Visuals

The interface is simple but deep.

• Character Knob: A macro that scales the harmonic intensity. Turning it up doesn’t just add volume; it changes the texture of the saturation.
• Blend: A built-in parallel mix knob for each band. This is critical for drums, allowing you to crush the signal and then dial it back to 20% for subtle density.
• Visuals: The orange central display visualizes the harmonic activity and frequency crossover, giving you immediate feedback on what part of the spectrum is being colored.

Not a Scientific Clone

This is not a 1:1 emulation of a specific Studer A827 serial number. It is a “Tone Machine” inspired by tape. If you need exact calibration of bias and flux, look at UAD. If you want the sound and feeling of tape with modern flexibility, 5420 is superior.

Pros and Cons

Pros	Cons
Dual-Band Saturation.	No “Tape Delay” effects.
Independent LF/HF Control.	Limited IPS Options (Only 15/30).
Hybrid 15/30 IPS capability.	No Hiss/Noise control (Pure tone).
Auto-Gain is effective.	Visuals are Static (mostly).
Unbeatable Intro Price.	Character knob can be aggressive.

FAQs

Final Verdict: The Best “Vibe” EQ/Compressor Hybrid

Purafied 5420 is a brilliant concept executed well. By separating the low and high tape behaviors, it solves the mud/harshness trade-off of traditional tape plugins. It allows you to sculpt the “weight” and “air” of your mix independently with the authentic glue of analog tape.