SIR2 is a user-friendly audio plugin designed to deliver high-quality reverberation with efficient, zero-latency processing. It utilizes advanced convolution technology to provide realistic and immersive reverb effects while maintaining low CPU usage, making it suitable for both studio and live environments. The plugin supports non-destructive processing of impulse responses, ensuring that your original audio remains intact throughout the effects application.

Included with SIR2 are high definition impulse responses (HDIR) captured from real acoustic spaces by Pinguin in Hamburg, offering authentic reverberation textures. Users can also import impulse responses in various formats including WAV, AIF, FLAC, BWS, and OGG, enabling customization with both free and commercial IR libraries. The plugin features true stereo convolution for each source channel, flexible routing options, and high-quality sample rate conversion to maintain audio fidelity.

Additional capabilities such as a linear phase FFT equalizer, adjustable predelay, stretch control, and forward/reverse switching provide creative control over the reverb character. SIR2 offers convenient tools like an impulse file browser, preset management, dry/wet balance control, and automatic gain compensation to streamline workflow. The software operates without copy protection restrictions and includes features like waveform zoom and picture association to enhance user experience.