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As an electronics engineer and musician, Yann Lu manufactures at home (Belgium) analog pro audio devices since 2015. His first designs are based on famous 70s-80s American consoles reputated for pristine, natural and musical sonic features.

Product line and prices :
 

EQ-532 : 4-band and 2-filter Stereo Equalizer in 500-series module (2-slot wide)

Assembled/tested version : EUR 900
DIY full kit version : EUR 500

DIY partial kit version (PCB + frontplate) : EUR 200

 

EQ-500 : 3-band semi-parametric equalizer in 500-series module : EUR 560 (DIY full kit version : EUR 290)
EQ-32S : 4-band + high and lowpass fully linked - stereo equalizer in 1U rackmount case : EUR 1500

EQ-32SD : 4-band + high and lowpass fully linked/dual mono - stereo equalizer in 2U rackmount case : EUR 1800

PRE-2: dual channel mic/line preamp in 1U rackmount case : EUR 1200

PRE-2+: dual channel mic/line/instrument preamp in 1U rackmount case : EUR 1400

​PRE-1:  mono channel mic/instrument preamp in a small tabletop enclosure : EUR 700

PRE-500: mic/instrument preamp in 500-series module : EUR 650 (DIY full kit version : EUR 350)

 

All prices excl. 21% VAT and shipping

Contact me for purchasing !

contact [A] yannluaudio.com

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!!!   BRAND NEW   !!!
EQ-532 : 4-band and 2-filter Stereo Equalizer

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Specifications

Perfect stereo link with internal MS matrix

Through-hole technology

Proportional Q


Resonant High-Pass filter : 25 Hz to 3.15 kHz (12 dB/oct) ; bump +1.5 dB

Resonant Low-Pass filter : 160 Hz to 20 kHz (12 dB/oct) ; bump +1.0 dB


Low band : 40 Hz to 800 Hz – Bell or Shelf mode (6 dB/oct)


Low-Mid band : 200 Hz to 4 kHz – Bell

High-Mid band : 400 Hz to 8 kHz – Bell

High band : 900 Hz to 16 kHz – Bell or Shelf mode (6 dB/oct)


Maximum 10 dB of boost/cut gain per band (center detent on 0 dB)

Bi-color LED indicators for signal and clipping (trimmable)

Switchable filters
 

Global in/out switch (true bypass)

Also available in DIY full and partial kit (PCB and front panels, B.O.M. here)

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EQ-500 : Semi-parametric Equalizer in 500-series

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Specifications

Transformerless (not coloured, transparent, for versatile applications)

Proportional Q


High-Pass filter : 26 Hz to 2.2 kHz (12dB/oct)


Low frequency band : 40 Hz to 800 Hz – Bell (2 widths) or Shelf mode


Mid frequency band : 400 Hz to 8 kHz – 3 bell modes :

Narrow / Standard / Wide


High frequency band : 800 Hz to 15 kHz – Bell (2 widths) or Shelf mode


Maximum 15 dB of boost/cut gain per band (center detent on 0 dB)

Bi-color LED indicator for signal and clipping


Bypass switch on each section

Also available in DIY full and partial kit (front panel, PCB and knobs)

Audio samples here

Build Guide for DIY kit here

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EQ-32S : Stereo Equalizer

This unit is based on the legendary musical and warm EQ section from the console on which the bestselling Thriller's Michael Jackson album was mixed by Bruce Swedien.

This 1U rackmount aluminium case has 4 bands with a switchable shelve/bell mode for the high and the low band.
Plus high-pass and low-pass filters with bump at the cut-off frequency.

Both channels are perfectly matched and linked by a single control set (quality pots and switches).

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Specifications

4-band with proportional Q :


LOW : sweepable from 40 to 800 Hz (switchable shelve/bell)
LOW-MID : sweepable from 180 to 4000 Hz
HIGH-MID : sweepable from 360 to 8000 Hz
HIGH : sweepable from 750 to 15000 Hz (switchable shelve/bell)
Maximum 12 dB of boost/cut gain per band

Bypassable HIGH PASS & LOW PASS filters with bump at cut-off frequency
HPF : Sweepable from 25 to 3000 Hz
LPF : Sweepable from 170 to 20000 Hz

Volume control
Bypass switch
2-LED indicator (signal and clip)

Jack/XLR combo input connectors
XLR and jack output connectors

Instrument / Microphone / Line Preamp

Audio specifications (PRE2 - PRE1 - PRE500)

Mic input :

Impedance 1200 Ω

Gain min: 0dB

Gain max: 70dB

 

Line input (PRE2 only):

Impedance 10 kΩ

Selectable level 0 / +4 / +6 / +8 dBu

(in-case jumpers)

 

Instrument input :

Impedance 200 kΩ
Sowter® transfo

 

Electrically balanced line outputs (no transfo)

 

-20dB pad switch (on mic/instr. inputs)

48V switchable phantom power

Sweepable high-pass filter (12 dB/oct)

PRE1-2: 30 Hz to 730 Hz or 2200 Hz

PRE500: 40 Hz to 730 Hz

Indicator LED (in-case trimmable threshold)

Noise level: >115dB

 

​​Also available in DIY full and partial kit (front panel, HiZ Sowter transfo, PCB and knobs)

Physical specifications (PRE2)

 

Height 1 or 2RU

4 balanced XLR rear inputs (2x Mic In ; 2x Line In)

2 balanced XLR rear outputs (Line Out)

1 or 2 HiZ Instrument Inputs (front or rear)

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