V700
Pro Audio Modules
W787

4 Band Equalizer with 2 fully parametric Bands

The adt-audio Standard EQ that is used in many Console Modules.

The W787 is the V700 version of the standard adt-audio 4 band equalizer with 2 fully parametric mid bands, an extraordinary resoltuion and benchmark transparency.

The circuit design is based on the phase coherent, active Vienna Robinson's bridge principle. All four bands offer 20 dB of boost and cut and adjustable bandwidth. The inputs and outputs are balanced and floating and the entire audio chain benefits from totally symmetric circuitry, which results in the massive headroom of + 30 dBu throughout the entire signal path.

With its enormous range, transparency and phase cohrency, extreme interventions of tonal surgery are possible. Even with extreme boosting or cutting of frequencies, this unit remains clean and crystal clear.

Hi- and low-eq have switch selectable frequencies. The HI-EQ can be switched to 2 different characteristics. In the position 18 kHz it works as a soft shelf EQ abovee 18 kHz. In the position 10 kHz the characteristic of the HI-EQ changes to a very soft bell curve whose center frequency is located at 10 kHz. This setting produces soft clean highs full of pressure.

The LOW-EQ always works as a bell curve with two selectable center frequencies of 100 Hz and 60 Hz.

The fully parametric bands cover the frequency range from 60 Hz to 20 kHz and are overlapping in the range from 200 Hz to 6 kHz. The Q factor control ranges from more than 3 octaves to less than a third.