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Technical specifications

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Mac OS X 10.9 - Mac OS X 10.12 Windows 7 - Windows 10
AAX 32b, AAX 64b, AU 32b, AU 64b, VST2 32b, VST2 64b, VST3 32b, VST3 64b AAX 32b, AAX 64b, AU 32b, AU 64b, VST2 32b, VST2 64b, VST3 32b, VST3 64b
For versions supporting older operating systems and RTAS, please check the Download section.
download link RZ062 Equalizer

RZ062 Equalizer

  • $19900


The Sweetest EQ of All Times

The exact models of Klangfilm RZ062a and RZ062b vintage EQ modules. Two plug-ins for music production and mastering.

RZ062 Equalizer is iLok protected. The hardware key is not necessary, only the License Manager. Please refer to our guide to see how to activate the trial and full versions.

Both RZ062 plug-ins deliver pleasant vintage warmth and amazing presence to your vocals, instruments and entire mixes.


2 EQ plug-ins in a bundle Precise valve circuit models Left/Right and Mid/Side Controls and transformation Calibration. Input and output level control Auto output parameter (link) Smoothest EQ sound available

The Original

The RZ062 Equalizers were originally (in the 1960s) designed in Germany for installation in mixing consoles. They were supposed to permit arbitrary modification of frequency response in sound recording and reproduction in order to eliminate undesired studio acoustics, noise, or to produce certain acoustic impression or tonal colouring. Soon they accommodated in top European studios. Now, these 6lbs 300V powered units are extremely rare. Due to their inaccessibility and unmistakable sound, their price climbs over $12.000 per pair. But thanks to our precise circuit modeling technique, these jewels can return to your projects.

The presence filter of the “B” is absolutely brilliant! One of the most ear-pleasing (and EYE-pleasing!) EQ’s I’ve ever used.” — Tony Vincent 

Common EQ vs RZ062

Nowadays producers tend to surf through various frequencies and spend hours on trying to find the sweet spot of their mix. But the vintage gear worked differently.
The RZ062 EQ‘s controls adjust precisely selected fixed parameters. They are perfectly sonically balanced to give the immediate and no compromise results. In addition, the circuitry adds wonderful colour to the entire material.

RZ062a

The RZ062a and RZ062b modules differ in the function of the central knob. The a-module middle handle rotates the entire frequency curve by around the central point (650 Hz). When the bass frequencies are raised, the trebles are simultaneously lowered.

RZ062b

The b-module is even more complicated. Its presence knob lets you choose one of four frequencies (1.4, 2, 2.8 and 4 kHz) and adjust their gain at the same time. This parameter helps your sonic material to cut through very gently and sensitively.

The Model

To create these amazing plug-ins we had to emulate more than 200 circuit components. That includes 3 triodes, input and output transformers. It is not just any circuit but someone did a great job focusing on the details. Each part has its own thoughtful meaning. For RZ062 we used so called white box modeling. We described the whole circuit with complex math equations based on the circuit analysis. Eventually, the overall model was fine tuned by measurements and component-values fitting algorithm. to find as the closest model to the real device as possible.

Using the RZ062 EQ is almost too easy. It's sweet and natural with no bitter aftertaste - all you have to do is pour it on. - Baby Brown

In use

RZ062‘s place is everywhere where extra bass, treble or presence is needed while improving the overall colour, smoothness, and tightness of the sonic material. RZ062 is incredible on vocals, bass or acoustic instruments.



But due to the advanced controls – the independent left/right channels tweaking or mid/side operation - the main point of the RZ062 EQs is the top quality mastering purpose.

Listen to the RZ062 Samples


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