Sylenth1 is a polyphonic virtual analog synthesizer designed to deliver rich and complex sounds with efficient CPU usage. It features four band-limited unison oscillators in full stereo, each capable of generating eight voices per note, resulting in up to 32 simultaneous voices per note. This innovative synthesis approach allows for the creation of high-quality waveforms in real time, making Sylenth1 suitable for a wide range of musical styles. Its user-friendly interface offers easy control and full MIDI compatibility, including MIDI learn functionality for seamless integration with hardware controllers.

At the core of Sylenth1 are two analog-sounding 4-stage stereo filters per note, equipped with five independent non-linear saturation functions. These filters support low-pass, band-pass, and high-pass modes with selectable attenuation levels, enabling the creation of harmonically rich sounds that can be pushed beyond self-oscillation. The synthesizer also includes four ADSR envelope generators and two low-frequency oscillators with multiple waveform options, providing extensive modulation capabilities that allow detailed sculpting of tones and textures.

Sylenth1 comes with a powerful built-in effects section that enhances its sound design potential. This includes a versatile arpeggiator with a step sequencer and various melodic modes, as well as seven master effects such as distortion, phaser, chorus, equalizer, delay, reverb, and compression. Each effect is carefully crafted to maintain sound quality, featuring oversampling and advanced controls for fine-tuning. Optimized for performance, Sylenth1 offers smooth operation and creative flexibility, making it a reliable choice for producers seeking a high-quality virtual analog synth.