EQ573-II Equaliser for the '500' Lunchbox - Kit

Price: 359,00€ (430,80€ VAT inc.)

381,71 USD 312,20 GBP

The EQ573-II is an equalizer based on the design that was originally used in the Neve 1073 and 1084 modules, that has been adapted to the '500' format of API*.

Add a XT500 extender?

Add a 501 Case?

Assembled? (4 weeks delay)

Quantity

Product ID EQ573-II

Description
Specs
Docs
Media
 Reviews

EQ573 Equaliser

The EQ573-II is an parametric equalizer based on the design that was originally used in the Neve 1073 and 1084 modules, that has been adapted to the '500' format of API*.

The EQ573-II can be used as a standalone unit but also as an insert, between the input and output stages of the MP573 mic pre, recreating the full architecture of the 1073.

the EQ573-II is the successor to the EQ573. The improvement mainly concerns the ease of assembly and the reliability of the final product. The audio behavior is the same, the only differences being the lack of attenuation when inserting into an MP573 and the removal of intermediate Q in the mid band.

Just install it in your API* compatible Lunchbox^TM rack and start recording.

Highlights

Three bands equalizer and high pass filter
High shelf EQ: +/-16dB @ 10kHz, 12kHz, 18kHz, 20kHz, 25kHz
Mid EQ: +/-18dB @ 0.27kHz, 0.36kHz, 0.5kHz, 0.7kHz, 1.1kHz, 1.6kHz, 2.3kHz, 3.2kHz, 4.8kHz, 7.2kHz, 10kHz
Low shelf EQ: +/-16dB @ 20Hz, 35Hz, 60Hz, 110Hz, 220Hz
High pass filter: -18dB/octave @ 25Hz, 45Hz, 70Hz, 160Hz, 360Hz
Additional frequencies in all bands
2 Q values for the mid EQ (1073 and 1084-Hi)
Pre/Bypass/XLR switch on the front panel allows both MP573 insert or standalone mode
Single ended, class A circuit
Carnhill inductors
Available assembled or as a full kit (everything included)

What's in the kit?

Absolutely everything!

Passive components (resistors, capacitors),
2 Carnhill inductors
Active components (diodes, transistors, LED, ...),
Front panel elements (switches, potentiometers, knobs),
Connectors, relay,
PCB's,
Front panel and side panel,
All hardware

You bring the solder (use good quality solder, 1mm diameter max) and the Lunchbox.

Difficulty level

The EQ573 kit is a rather complex build because of the high components density.

Product Options

XT500 Extender: The XT500 option is a cable extension that allows you to test and setup the module outside the lunchbox while connected.

501 Case: The 501 case option is a standalone, single slot lunchbox with PSU.
The XT500 Extender is not needed with the 501.

Assembled Product: If you prefer not to DIY, choose an Assembled product. It comes fully assembled, ready to use.

lunchbox

Technical specifications

Measure	Conditions	Value
Iddle supply current	No input signal	I = +/- 40mA
Input impedance	f=1kHz on XLR	20kΩ
Maximum input level	on input XLR	+25dBu
Maximum output level before clip	on output XLR	+26dBu
High Freq maximum boost/cut		+/-16dB
Mid Freq maximum boost/cut		+/-18dB
Low Freq maximum boost/cut		+/-16dB
High pass filter attenuation		-18dB/octave

Documents

Go to Products technical documentation

User manual

Media

Build and review of the EQ573

3 Product Reviews - Average rating 4.7 / 5 Show All

Click to review this product

my 2nd DIY-Module

Stefan - 05/07/2022

This Module was my 2nd DIY build. After I learnd my lesson on my 1st build, what it means to organise all parts befor you start, It was a joy to build this EQ.
And in the end, the most important thing is, this module rocks!!! Compared to my UAD 1073 EQ the EQ curves are very similar and the sonic characteristics are very close, but through the hardware unit, the signal has more body, is more 3 dimensional. I really love this peace of gear. Next thing is building the MP573 an run the EQ through it...Thank you Jean-Pierre for these beautiful kits.

Perfect! The classic Neve EQ and very musical

Matthias - 23/11/2018

This EQ needs a lot of patience and concentration while building it, but it is absolutely worth the effort. It’s the perfect supplement for the MP573 preamp. I use it in my studio for tracking on every single track. It’s so musical that you rarely need any other EQs with more bands. If the sound is allowed to get coloured in a nice way you can even use it for mastering – I did this and achieved great results in no time (faster than with a Pultec). It’s great that the EQ573 combines the 1073 and 1084 models: You have a bandwidth switch for the mid frequencies and more frequencies available for the high shelf. It’s worth looking at the frequency response while using it (with Waves Q-Clone for instance) – you begin to understand why you don’t need more EQ bands for a perfect sound ;-)
I disagree with the other reviewer here: I don’t find it harsh at all (if you use it "correctly"). But as always, you should also consider using it for cutting the frequencies you don’t need and not on...

Good For Certain Things

ZMFG - 01/08/2018

For the record, I had never soldered before I bought my first Sound Skulptor kit (CP5176). Also, I am not a trained recording engineer. This is the only Sound Skulptor I would give a 4 (out of 6 I own). What I've noticed after using this for a little over a year is that it can be a bit harsh. I use it more for HF/LF cut, and gentle tuning in the inner frequencies. I run it "inside" of my MP573 (which I love!), and occassionally in series when I am not getting the results I'm looking for. The build is a little tricky getting the pots and set up straight, but I had a lot of fun learning how this parametric structure works.

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