500 Series Equalizers & Filters

A-Range 500 The legendary A-Range® equalizer holds a unique place in audio history, with a stunningly musical sound that resulted from its all-discrete transistor circuitry and the use of inductors...

Phoenix Audio's Gyrator EQ  is one of today's most unique and musical EQs, allowing an incredible variety of sounds useful for everything from clean high-headroom mix buss tone shaping to deep...

Delivering the world’s most natural feedback reduction and adding focus to your primary sources, the 545 is a truly unique tool for improving your live sound. Based around the circuitry in the...

The xfilter 500 is a true linked stereo EQ in the 500 series format. It gives you the expensive sound of an all class-A equalizer in a surprisingly affordable package, with a precise stereo image...

The nvelope 500 is a powerful audio processor capable of making subtle or drastic changes to a sound by providing control over its attack and sustain characteristics. This is extremely useful for...

The karacter 500 is a box full of vibrant colors. It covers a complete spectrum including mastering-grade saturation, tube-inspired distortion and glorious destruction. Gone are the days when only...

Wunder Audio Allotrope EQ The Wunder Audio Alloptrope EQ is a classic inductor-based baxandall equalizer with has the same EQ circuit as the Wunder Audio PEQ2. All aspects of this design from the...

Pivot Tone Channel / 500 At a Glance Class A Discrete input line buffer amp Class A Discrete 10meg ohm DI input Class A Discrete output amp Phoenix custom output transformer Unique 3 position...

Introducing the Vacbax tube equalizer module.Buttery smooth Baxandall style tone control in a fully compliant all-tube 500-series module.

A two-band program EQ with stepped controls. Designed to work in standard “500″ racks. The LILPEQr emulates the colorful 3D richness and useful responses of our favorite vintage tube (aka valve)...

One of the newer members of the Empirical Labs family is the DocDerr, a 500 series multi-purpose tone enhancement module that houses six different sections of digitally controlled analog processing. ...

The 73EQ JR is a fully featured Line Input module for the 500 Series. It not only shares the 3-band Equalizer with his big brother, the 1073, but also shares the same transformer coupled line preamp...