Alice PYE 4061S – Stereo Feed Forward Compression Amplifier

Product Overview

Alice PYE 4061S compression amplifier is a stereo feed-forward analogue levelling amplifier designed for transparent peak control and loudness optimisation on mix and master buses. The Alice PYE 4061S compression amplifier uses a forward-sensing sidechain that reacts to the incoming signal and drives precision current-mode gain cells near the output, delivering fast, accurate control with minimal coloration. Dual mono or stereo-linked operation makes it equally at home on stems, stereo mix buses and mastering chains.

Main Features

• Alice PYE 4061S compression amplifier in a 2-channel stereo levelling design for bus and mastering applications.
• Feed-forward topology with extremely fast, selectable attack times and wide-range release control for precise transient and loudness management.
• Sum and difference (M/S) matrix with width control to adjust stereo image from mono to expanded 150 % while maintaining mono compatibility.
• Transformer-balanced current-mode input stage and high-power low-distortion output transformers for clean headroom and low THD.
• Dynamic compression ratio that increases with level, smoothly transitioning from gentle levelling to true limiting as signals approach 0 dB.
• Illuminated precision PPM meters with selectable stereo, mono-sum and gain-reduction display modes for clear visual feedback.
• Front-panel “comp off” mode that bypasses the compression while retaining the amplifier path for easy A/B comparison and gain staging.

Applications

The Alice PYE 4061S compression amplifier is ideal for mix bus and mastering duties where engineers want controlled loudness without audible pumping or distortion. It excels at preparing material for streaming platforms by raising perceived loudness while preserving punch and clarity, and it can also add cohesive stereo glue on subgroup buses for drums, vocals or full program feeds. With carefully chosen attack and release settings, it delivers everything from subtle levelling to firm brickwall-style limiting.

Suggested Alternatives

For engineers who prefer a different character or feature set, consider alternatives such as the
SSL Bus+ Stereo Bus Compressor,
the versatile
dbx 1046 Quad Compressor/Limiter,
or a broadcast-focused dynamics unit like the
Orban Optimod Dynamics Processor
for more integrated processing.

Further dynamics processors and levelling amplifiers can be found in our
Broadcast
and
Audio Processing
categories.