Requisite

Requisite Audio Engineering is a US-based audio equipment manufacturer founded in the mid-1990s by Danny McKinney, known for producing high-end analog signal processing gear such as preamps, compressors, and equalizers, which are highly regarded among audio professionals for their sound quality and craftsmanship.

Released in 2000

Requisite OS1 Microphone Preamplifier MkII

The Requisite OS1 Microphone Preamplifier MkII is a high-end analogue preamp designed for professional audio recording and mixing applications.
Released in 2008

Requisite L2M Mastering Limiter MkIII

The Requisite L2M Mastering Limiter MkIII is a high-end analogue hardware limiter designed for mastering engineers and is known for its transparent sound and precise control over dynamics.
Released in 2008

Requisite PAL Plus Preamplifier & Limiter Mk III

The Requisite PAL Preamplifier and Limiter is now in its Mk III version but retains all the goodness of previous version with some sonic improvements.