VLA-3A Vintage Leveling Amplifier compressor plugin interface by Black Rooster Audio

VLA-3A: Vintage Leveling Amplifier Compressor Plugin by Black Rooster Audio

Rated 4.7/5 on Plugin Boutique (25 ratings)

VLA-3A is a compressor plugin from Black Rooster Audio that emulates the sound and feel of a vintage analog leveling amplifier from the 1970s. It is available in VST3, VST2, AU and AAX formats for Windows and macOS.

VST3VST2AUAAXWindowsmacOS64-bit

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01Overview

The VLA-3A is a native emulation of a classic 1970s analog leveling amplifier, developed by Black Rooster Audio. The developer describes it as one of the most authentic plugin versions of its hardware counterpart. Its circuit is modeled in realtime, covering the transformers, sidechain and audio path networks, filters and the T4B cell. The plugin is aimed at producers who want a compressor with the character of the original unit, for vocals, percussive material and bus glue.

Best for

Vocal compression
Percussion ambience
Mix bus glue
Analog-style leveling

Developer: Black Rooster Audio
Category: Compressors
Store: Plugin Boutique

02Key features

What you get

Realtime component-based emulation of a 1970s analog leveling amplifier
Input and output transformers modeled in the circuit
Discrete sidechain and audio path networks included
T4B cell modeled for authentic compression behavior
Low-latency linear-phase Dolph-Chebyshev polyphase oversampling
Oversampling rate adjusts automatically to session sample rate
SSE2-optimized DSP processing
High-DPI and Retina-ready user interface

03In depth

Authentic Analog Circuit Emulation

Black Rooster Audio uses a realtime, component-based circuit simulation to model the VLA-3A. The developer says the approach captures the sound and feel of the analog unit as closely as possible.

The model includes the input and output transformers, the discrete sidechain and audio path networks, the filters and the T4B cell. Each of these parts shapes how the compressor responds to a signal, so the emulation aims to reproduce that behavior rather than a generic compression curve.

Oversampling and Processing Performance

The VLA-3A uses a low-latency, linear-phase Dolph-Chebyshev polyphase oversampling design to reduce aliasing artifacts. The oversampling rate adjusts automatically to your session's sample rate, which the developer describes as a way to save CPU while keeping the sound transparent.

DSP operations are pipelined with the SSE2 instruction set, which the developer says keeps performance high despite the complexity of the circuit model.

04Specs

Will it run?

Formats, systems and requirements as listed by Plugin Boutique. Missing details are left out, not guessed.

Developer	Black Rooster Audio
Type	Plugin
Category	Compressor
Formats	VST3, VST2, AU, AAX
Operating systems	Windows, macOS
Architecture	64-bit

05FAQ

Questions, answered

What formats does the VLA-3A support?

The VLA-3A is available in VST3, VST2, AU and AAX formats. It runs on Windows and macOS as a 64-bit plugin.

What do I need to run the VLA-3A on macOS?

You need macOS 10.9 or newer, with an Intel Core CPU or an Apple Silicon M1 or M2 processor, 1GB of RAM, and a VST, VST3, AU or AAX compatible 64-bit host. A display resolution of 1280x1024 pixels or more is required.

What do I need to run the VLA-3A on Windows?

You need Windows 7 or newer, an SSE2 compatible processor (an Intel Core CPU is recommended), 1GB of RAM, and a VST, VST3 or AAX compatible host. A display resolution of 1280x1024 pixels or more is required.