PSP has gathered five high quality processors together in their MixPack2 collection. Each processor was modeled after general analog properties and the plugins include PSP MixBass2, MixTreble2, MixSaturator2, MixPressor2 and MixGate2.

MixBass2 is a low frequency processor designed to produce punchy, analog bass sounds. While it excels at percussion, it can work well with most audio material that needs a low end boost. It features a low-frequency compression algorithm as well as a low frequency harmonics generator.

On the other end of the frequency spectrum, MixTreble2 extends dynamic range, sharpness, clarity and spatiality of your signal's treble frequencies. It has four weapons with which it performs these tasks.

• Hiss remover -- designed to help decrease the amount of tape noise, extra-auditory high frequencies or undesired reverberations in the high frequency range
• Stereo enhancer -- increases the spatiality of processed material
• Transient enhancer -- designed for stimulating flattened transients
• Harmonics generator -- designed for widening the frequency range by enriching the harmonics lacking in the processed signal

MixPressor2 is a compressor that processes anything from single tracks to entire mixes. It goes after the characteristics of compressors with valve and opto-electronic circuits and offers a very versatile side-chain feature as well as a wide load of other features which include:

• A wide range of soft knee characteristics
• Either peak or RMS level detection
• External or internal side chain signal with a smooth bell-type filter
• An output algorithm which can operate as either a brick wall limiter or soft saturation algorithm to preserve peaks above 0dBFS

The MixPressor2's partner in crime is MixSaturator2. In combination, the two create the effect of a bus compressor before a tape machine. On its own, MixSaturator2 obviously "saturates" your audio material by adding harmonics, filtering and dynamic processing. More features include:

• A bass frequency processing algorithm, which adds low frequency harmonics and increases the magnitude nonlinearities (more commonly known as the "low frequency bump") typical of analog tape recordings
• A treble frequency processing algorithm, which simulates tape saturation and high frequency loss at high levels without increasing the level of distortion and aliasing
• An overall saturation simulation algorithm, which enables the user to choose between seven distinct non-linearity curves characteristic of valve devices, analog tape machines, and the sound of digital clipping

Finally, PSP MixGate2 is a precise noise gate that is new to MixPack2. PSP claims it operates fast and smooth, like I do with the ladies. It also filters it unwanted frequencies with high and low pass filters, like I do with the ladies.