U-he Ace V1.4.0.3898 [win-osx] May 2026

is a semi-modular synthesizer plugin known for its "virtual analog" sound and flexible patching system. Version 1.4.0.3898 is a specific maintenance update designed to ensure compatibility with modern operating systems and host environments. Core Concept & Design

: Two multi-tap oscillators with sawtooth, pulse, sine, and "sub-osc" waves. It also includes PWM (Pulse Width Modulation) and sync capabilities.

: Twin multi-mode filters that can be used in series or parallel, offering low-pass, high-pass, band-pass, and band-reject modes. u-he ACE v1.4.0.3898 [WiN-OSX]

: Full support for M1/M2/M3 Mac chips, ensuring low CPU overhead on newer hardware.

ACE stands out by combining the simplicity of a fixed-architecture synth with the power of a modular system. It uses a "semi-modular" approach, meaning there is a default internal signal path, but you can override any connection by clicking and dragging virtual patch cables between inputs and outputs. is a semi-modular synthesizer plugin known for its

: ACE uses the same high-quality filters and oscillators found in u-he’s flagship synths like Diva and Bazille .

: Features a powerful preset browser with tagging and search functionality to quickly find sounds. Why Choose ACE? It also includes PWM (Pulse Width Modulation) and

: Every input can be a modulation source. You can plug audio signals into control inputs for extreme FM (Frequency Modulation) and ring modulation effects.