Acustica Audio Emerald Bundle

This bundle contains: 

• Emerald EQ, Emerald FILTER
• Emerald EQ ZL(*), Emerald FILTER ZL(*)

The Emerald Eq  is arranged in a system of six modules while a seventh unit contains the input and output amplifiers, 2 filters section and 2 preamps switchable (P-H).

The placing of the controls on the front panel has been designed in such a way as to make the most imaginative use possible of the filter.

The particularity of these EQ is the ability to select the operating mode of each band.

-Pressing the Lin button, the filter is excluded,
-Pressing the A button, it works in passive mode
-Pressing the E button, the section becomes active

On the left side is the bass corrector, while the sixth module on the right contains the treble corrector. On both of these there is a five-key push button strip for selecting the frequencies, while a rotary switch regulates the maximum amount of correction in steps of 3 dB from 0 to 21dB.

By operating the slide switch, the slope of the curve can be set at 12 or 6 dB/octave.

The Emerald Filter expands the HP and LP filter sections already included in Emerald Universal Equalizer. 

In addition to the usual 6 and 12dB/octave options, both filters have two uncommon extra slopes: 24 and 36dB/octave (4 and 6 poles). Moreover, both frequency controls are continuous.

The same two preamps available in Emerald eq are at user's disposal in Emerald Filter as well.

The steeper slopes of the filters are very effective in removing unwanted parts of the spectrum, yet may be used in a more creative way in order to change quite radically the frequency content of any given sound.