€1,946
pledged of €6,000pledged of €6,000 goal
2
backers
4days to go

All or nothing. This project will only be funded if it reaches its goal by Sat, August 24 2019 11:51 AM UTC +00:00.

€1,946
pledged of €6,000pledged of €6,000 goal
2
backers
4days to go

All or nothing. This project will only be funded if it reaches its goal by Sat, August 24 2019 11:51 AM UTC +00:00.

About

Interphase Audio are proud to announce the latest in our line of innovative and unique analogue products for the professional audio community - the EQ 2.2

Originally designed as middle input section for the Ark console, the EQ 2.2 is the rackmount version of this middle input section.

The EQ 2.2 is a fully discrete, Class-A design, and features 2 dual-channel modules each with Inductive EQ, Hi-Cut filter, Lo-Cut filter and Swing EQ.

Each module has 2 in- and outputs, and 2 signal paths.

Each module had 4 EQ sections, which can be used on either "A" or "B" signal path. The EQ sections can also be combined on the same audio path for extreme EQ-ing.


EQ section overview
EQ section overview

EQ sections

Hi-Cut filter (also called Low-Pass filter) 
   As its name implies, the Hi-Cut filter cuts off the high frequencies. It sweeps over 5 octaves from 16 KHz down to 500 Hz
   The Hi-Cut filter can be used on the "A" or "B" signal path, and separate or in combination with the other EQ sections.

Lo-Cut filter (also called Hi-Pass filter)
   As its name implies, the Lo-Cut filter cuts off the low frequencies. It sweeps over 5 octaves from 25 Hz up to 800 Hz
   The Lo-Cut filter can be used on the "A" or "B" signal path, and separate or in combination with the other EQ sections.

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 (most other inductive EQ’s on the market, only have inductors on the two middle bands), giving precise control and the distinctive inductor sound on each band. 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.

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

Inductive EQ frequency bands
Inductive EQ frequency bands

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

4-band Inductive EQ with rotary switches and fader level control
4-band Inductive EQ with rotary switches and fader level control

But why faders instead of rotary controls ?
   Simply ... just because we like it.
   But also, because this gives much better visual control of the level of cut or boost, so you know what’s going on in a glance. 


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" path or on the "B" path, separate or in combination with the other EQ sections.


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


Output level
   Each of the 2 channels has 2 in- and outputs. We added 15 dB cut or boost level control for the 4 outputs. 

VU meter
   The high-quality analogue VU meter has LEDs installed above the VU.
   These have a much longer life-span than the standard light bulb in most VU meters (and as a nice bonus, they give a bit of a theater effect to the VU)

   The VU meter section features two rotary switches.
   The left switch 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


Rear Panel
Rear Panel

Audio I/O
   All inputs and outputs of the EQ 2.2 are doubled.  Inputs have balanced female XLR and balanced jack connectors. These connectors are paralleled, you can use either.  Outputs have balanced male XLR and balanced jack connectors. These connectors are paralleled, you can use both at the same time.



Video
   Below is a short movie of the EQ 2.2.  You may also enjoy the video of the EQ 2.2's big brother - the EQ8.  Sound and functionality of the channels is identical on both the EQ 2.2 and the EQ8, so you can listen to either to get a good idea.

 


Usage and Sound
   Basically, the EQ 2.2 is a 2 channel EQ with 4 EQ sections per channel, but in reality, the EQ 2.2 offers much more.

Each channel has 2 audio paths, so there are 2 inputs and 2 outputs per channel, for a total of 4 I/O

Each of the 4 EQ sections (per channel) can be used on either of the audio paths (per channel), offering a lot of flexibility.  

Lo-Cut filter and Inductive EQ on channel 1A and and Swing EQ on channel 1B for example.  And the other Swing EQ on channel 2A and Inductive EQ on channel 2B, for example.

All frequency select rotary switches of the Inductive EQ are stepped, and it is rather easy to put the faders of the 2 channels in the same position. While not designed as a stereo EQ, the EQ 2.2 can also be used as stereo EQ because of this.

The 4-band Inductive EQ is "smooth as silk" and very musical.  The Swing EQ is a quick way tool to make adjustments to a track. And the Lo-Cut and Hi-Cut filter may come in very handy.

All-in-all, the EQ 2.2 not only sounds great, but offers enough tools to make it a worthwhile addition to any DAW based studio.   

We hope you like it as much as we do.




 What is the status of the project? 

The Interphase Audio EQ 2.2 is currently a functional prototype, based on the existing middle input section of the Ark console, and based on it's big brother the EQ8.
   The prototype consists of 2 of our IP211 modules which have been extensively used in the Ark console, and which customers love.
   The EQ 2.2 prototype works, and has been extensively tested, but does not yet have the final metal case.  A new motherboard has been designed to hold the modules, and features all I/O connections, including power.

 Timeline 

  • September - ordering parts 
  • September - Start of production
  • October - shipping early pledges
  • November - shipping normal pledges

 Taxes and Duties
Why different prices for different countries? Why are some pledges cheaper?  

Interphase Audio is a European VAT registered company. Therefore, by law, we are required to sell and advertise our products including European VAT for those countries within the European Union.
    There are however exceptions to this:
    * If you run a VAT registered company in the EU (but outside Belgium), we are not required to charge VAT, if you let us know your valid VAT number.
    * If you are not within the EU, we do not have to charge VAT, but please be aware that you may be charged taxes upon importation by your local / national authorities. 
    For this we have created separate pledge levels, some including VAT and others without VAT.

Why Kickstarter?

Interphase Audio has over the past six years sold its products through a number of dealers around the world, and directly to professional customers. 

However, Interphase Audio is always looking for new ways to help customers get access to our products and like many other established companies, Interphase Audio sees Kickstarter as a new, fresh and innovative way of reaching people the world over.

Kickstarter gives us the ability to know in advance exactly how many units need to be made and the ability to tailor our manufacturing precisely to meet this.

Risks and challenges

No one with experience of working in the electronics manufacturing industry would ever say there are "no risks and challenges" but Interphase Audio has invested thousands of man hours in designing, developing and testing the Ark console and the EQ 2.2

The EQ 2.2 is actually the rackmount version of the middle input section of the Ark console, which has proven quality and reliability, and which is much loved by users of the Ark console.
The EQ 2.2 is also the smaller version of it's big brother the EQ8.

The two major risks we can think of are:

1) The component shortages effecting every manufacturer of electronics products in the world - however Interphase Audio has worked very carefully with its suppliers and cross checked availability of components and possible alternatives wherever possible and continues to monitor this on a daily basis.

2) Issues that might arise from manufacturing of the new metal case needed for the EQ 2.2
At Interphase Audio we have quite some experience with supplying metal workers with correct drawings and designs, so these risk are rather small.
But if corrections need to be made, delays in final production can occur.

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Questions about this project? Check out the FAQ

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    EQ 2.2 - Signed Unit

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    EQ 2.2 - Serial Number One

    Get the first unit available, numbered and signed by designers Allan Bradford and Bruno Wynants.
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