Taken from the middle EQ section of the Ark input channels,
the EQ 2.2 is the rackmount version of 2 channels of this middle input section.
The EQ 2.2 is designed to add colour to your tracks, and silky smooth colour that is.

The EQ 2.2 features 2 modules, each containing 4-band Inductive Equaliser, Hi-Cut filter, Lo-Cut filter and Swing EQ.
Each module has 2 in- and outputs, and 2 audio paths, actually making it an EQ with 4 I/O

Each of the four EQ sections - of each module - can be independently used on either “A” or “B” audio path


In short:
The EQ 2.2 has 2 channels, with 2 audio paths and 2 in- and outputs each.
Each channel has 4 EQ sections.
All four sections of the EQ 2.2 can be used independently from each other, on either of the audio paths of each channel, or can be combined for “extreme” EQ-ing.
Each of the 4 outputs has level control, the VU meter can read either of the 4 inputs or either of the 4 outputs.

The EQ 2.2 is available as a 2 unit 19-inch rackmount unit, with or without VU meter, and can be ordered directly from us or from your favourite pro audio dealer.


Each module (channel) of the EQ 2.2 contains 4 EQ sections.
- Hi-Cut filter
- Lo-Cut filter
- 4-band Inductive Equaliser
- Swing EQ

All our EQs are based on the IP211 EQ module from the Ark console.
Full details can be found on the
IP211 page

All four EQ sections of the IP211 / EQ 2.2 can be used independently from each other,
on either of the audio paths, or can be combined for “extreme” EQ-ing.

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Hi-Cut filter
(also called Low-Pass filter)

As it’s name implies, the Hi-Cut filter cuts off the high frequencies.

It sweeps over 5 octaves from 16 KHz down to 500 Hz
Our Hi-Cut filter can be used on the A or B signal path,
and separate or in combination with the other EQ sections.
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Hi-Cut filter
(also called Low-Pass filter)

As it’s name implies, the Hi-Cut filter cuts off the high frequencies.

It sweeps over 5 octaves from 16 KHz down to 500 Hz
Our Hi-Cut filter can be used on the A or B signal path,
and separate or in combination with the other EQ sections.

Click Image for more

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Lo-Cut filter
(also called Hi-Pass filter)

As it’s name implies, the Lo-Cut filter cuts off the low frequencies.

It sweeps over 5 octaves from 25 Hz up to 800 Hz
Our Lo-Cut filter can be used on the A or B signal path,
and separate or in combination with the other EQ sections.

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Lo-Cut filter
(also called Hi-Pass filter)

As it’s name implies, the Lo-Cut filter cuts off the low frequencies.

It sweeps over 5 octaves from 25 Hz up to 800 Hz
Our Lo-Cut filter can be used on the A or B signal path,
and separate or in combination with the other EQ sections.

Click Image for more.

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4-band inductive EQ

Inductor based circuits are the “holy grail” of equaliser designs.

These were used for example in the much favoured Pultec equaliser design, which dates back to the late 1950’s.
Owing to their unique electro-mechanical properties, inductors impart a character all of their own, which is very distinctive.

Our inductive EQ uses inductors in each of the four bands (unlike other so-called inductive EQ’s on the market),
giving precise control and the distinctive inductor sound on each band.

And yes, you’ll get a very distinctive sound, which most sound engineers love.

As a consequence of using inductors, this provides a “peaking” characteristic, giving much tighter control of the frequency selected.

The inductor values and components have been carefully chosen and matched to provide an extremely musical sound.

Each band provides switch selection of any of six carefully selected frequencies chosen at musically pleasing intervals.
Each band uses a fader - instead of a rotary potmeter - for cut and boost control, allowing a maximum of plus or minus 15dB per band.

Our 4-band inductive EQ can be used on the A or B signal path, separate or in combination with the other EQ sections.

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Four bands with switchable, overlapping fequencies

- Low (Hz): 50, 80, 100, 150, 300, 600
- Low Mid (Hz): 125, 250, 500, 1K, 2K, 4K
- Hi Mid (kHz): 2.5, 3, 5, 6, 7, 8
- High (kHz): 8, 9, 10, 12, 14, 16
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Four bands with switchable, overlapping fequencies

- Low (Hz): 50, 80, 100, 150, 300, 600
- Low Mid (Hz): 125, 250, 500, 1K, 2K, 4K
- Hi Mid (kHz): 2.5, 3, 5, 6, 7, 8
- High (kHz): 8, 9, 10, 12, 14, 16

But why faders instead of rotary controls ?

It’s simple … we like faders.
But also because faders give much better visual control of the level of cut or boost, so you know what’s going on at a glance.

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Swing EQ

Our Swing EQ is a fast and easy way to make a track sound “warmer” or “cooler”.
By turning the one-control-knob counterclockwise, you attenuate the highs and boost the lows, making the sound darker.
By turning the one-control-knob clockwise, you attenuate the lows and boost the highs, making the sound brighter or cooler.
Our Swing EQ can be used on the A or B signal path, separate or in combination with the other EQ sections.

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Swing EQ

Our Swing EQ is a fast and easy way to make a track sound “warmer” or “cooler”.
By turning the one-control-knob counterclockwise, you attenuate the highs and boost the lows, making the sound darker.
By turning the one-control-knob clockwise, you attenuate the lows and boost the highs, making the sound brighter or cooler.
Our Swing EQ can be used on the A or B signal path, separate or in combination with the other EQ sections.

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Output Level Controls

Each of the 4 outputs has its own level control, with 15dB boost or cut.

The EQ 2.2 has 4 inputs and 4 outputs, which are all doubled.
Each input has a female XLR and a balanced jack connector. These connectors are paralleled, you can use either.
Outputs have male XLR and balanced jack connectors. These connectors are paralleled, you can use both at the same time.

Note: While you can use both XLR and jack outputs at the same time (for example to split the outputs and send these to multiple destinations), it is not a good idea to use both XLR and jack inputs at the same time.

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Output Level Controls

Each of the 4 outputs has its own level control, with 15dB boost or cut.

The EQ 2.2 has 4 inputs and 4 outputs, which are all doubled.
Each input has a female XLR and a balanced jack connector. These connectors are paralleled, you can use either.
Outputs have male XLR and balanced jack connectors. These connectors are paralleled, you can use both at the same time.

Note: While you can use both XLR and jack outputs at the same time (for example to split the outputs and send these to multiple destinations), it is not a good idea to use both XLR and jack inputs at the same time.

Interphase Audio - EQ2.2 rear panel
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VU meter (EQ 2.2-VU only)

High-quality analogue VU meter with LEDs for illumination installed above the VU.
(These LEDs have a much longer life-span than the standard light bulb in the VU)

The VU meter section features two rotary switches.
The left selects the signal to be read by the VU. This can be any of the 4 inputs or 4 outputs.
The right switch changes the VU level reading.
This can be either standard 0 VU = +4dB or alternatively 0 VU = +10dB


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VU meter (EQ 2.2-VU only)

High-quality analogue VU meter with LEDs for illumination installed above the VU.
(These LEDs have a much longer life-span than the standard light bulb in the VU)

The VU meter section features two rotary switches.
The left selects the signal to be read by the VU. This can be any of the 4 inputs or 4 outputs.
The right switch changes the VU level reading.
This can be either standard 0 VU = +4dB or alternatively 0 VU = +10dB



Below are some short movies of the EQ 2.2 (VU)
and a movie of the EQ 2.2’s big brother - the EQ 8.
EQ sections and routing on the EQ 2.2 and EQ 8 are the same, so either movie should give you a good idea.

More pictures and movies can be found in our
Gallery

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EQ 2.2 video:
Acoustic Drums

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EQ 2.2 video:
Electronic Drums

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EQ 2.2 video:
Keyboard - Superstition

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EQ 2.2 video:
Solo Vocal - Pump up the Jam

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EQ 8 video:
Piano and Bass - Bohemian Rhapsody


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* Manual
* Recall Sheet
* Brochure

(all in the works, these files should be uploaded shortly)


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