Synthax Algorithmix Classic PEQ Blue

Collection of classic equalizers in one DirectX/VST Native PlugIn

Product Code 41512

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The equalizer is the oldest and the most popular sound processing tool. From the earliest days, its main function has been to correct or enhance sound by boosting or cutting certain frequency ranges. Engineers have developed countless equalizers for over 50 years. Some of them became legendary and were considered benchmarks--until now. The most popular version in recording and post-production studios is the parametric equalizer or PEQ. It offers maximal flexibility due to direct access to all relevant filter parameters. Properly used, the PEQ is a very powerful tool and the best friend of every sound engineer in the battle for perfect sound. If misused, it can be the greatest enemy of any recording.

Every PEQ type has 10 bands with five freely assignable parametric filter types including bell, low-shelf, high-shelf, low-cut, and high-cut. The most significant filters determining the equalizer name are bells. Set up to a certain Q, different bell filters change their bandwidth in a specific way depending on the boost or cut amount . To allow practical comparison between different equalizer types in the Classic PEQ Blue, the bells in all PEQs have been normalized to 6 dB boost, i.e., a separate bell looks identical for 6 dB boost and the same Q, independent of chosen PEQ type.

In Classic PEQ Blue, not only are various bell filters used but also different kinds of shelving filters. Nine of the serial equalizers use a new shelving filter generation characterized by cut-off frequency defined in the middle of the transition part. We found these filter definitions more intuitive than the classical ‘– 3 dB below maximum’. The old definition is only used in the Classic Asymmetrical type to conform to its original predecessor. All 2nd order shelving filters have a Q adjustment to emulate vintage characteristics with their specific bumps at higher slopes. Also, the parallel equalizers are equipped with respective shelving filters shapes being typical for the old parallel PEQs and interacting with other bands as did their analog predecessors.

Every complex PEQ is equipped with cut filters. In Classic PEQ Blue, each of the 12 equalizers can assign 1st and 2nd order cut filters. The 2nd order filters have a Q adjustment to create so-called resonant filters characteristics and very steep brickwall filters after cascading more of them (Butterworth, Bessel, Elliptic).

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- The most complete collection of classic analog equalizer emulations ever
- 12-in-1 -- one dozen different equalizer types: 10 serial and 2 parallel
- PEQ styles for every taste: classic/vintage/modern/experimental
- Different frequency characteristics: classic/constant-Q/proportional/ideal-Q/special
- True emulation of the analog parallel feedback equalizer implemented for the first time in a commercial product (normally impossible due to so called delay-free feedback loops)
- Reliable operation with up to 384 kHz sampling frequency, thus perfectly suitable for high-resolution DSD post-production
- Extended center frequency setup up to 80 kHz for filtering in ultrasonic range in DSD applications
- Bell filters in all PEQ types normalized to look identically at + 6 dB boost and Q = 0.71 (ideal for fast sound comparisons between different types of equalizers)
- Every equalizer type provides 10 bands with five freely assignable parametric filter types: bell, low-shelf, high-shelf, low-cut, and high-cut
- Extremely low noise and low nonlinear distortion filter algorithms resulting in the residual THD+N significantly lower than 24-bit quantization noise
- Adjustable Q-factor for shelving and cut filters
- Several low-cut and high-cut filters can be overlapped to get desired brickwall characteristics
- Very low-noise and low-distortion upsampling technique for getting analog-like filter characteristics when working with low sampling frequencies: 44.1 and 48 kHz
- All internal calculations in double floating-point accuracy (80 bits)
- Resizable (DirectX only) and zoomable frequency-response display for high-precision adjustments
- Parameter editing via numerical fields or directly on the graphical display
- Three fast accessible presets for quick setup comparison
- Several instances, each with different PEQ type selection, can be simultaneously opened
- Complete setup exchange among several simultaneously opened instances
- Automatic latency compensation with compatible DAWs

System Requirements:

Minimum configuration (one real-time DirectX/VST PlugIn loaded)
- Windows 9x/Me/NT4/2000/XP Home or Professional
- Pentium II 500 MHz
- 64 MB
- 1024x768 pixels resolution with true color (24bit or 32bit)
- any compatible DirectX/VST Host Editor
- USB port for hardware dongle
- Sequoia/Samplitude 7.x, 8 allows fully automated PlugIn latency compensation

Recommended configuration (more than one real-time DirectX/VST PlugIn loaded)
- Windows 2000/XP Home or Professional
- Pentium IV or AMD Athlon XP with at least 1 GHz (resolution low), 3,6 GHz or faster (resolution Xtra)
- 512 MB
- 1280x1024 pixels resolution with true color (32bit is usually fastest)
- any compatible DirectX/VST Host Editor
- USB port for hardware dongle
- Sequoia/Samplitude 7.x, 8 allows fully automated PlugIn latency compensation

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