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Labo

 

 K 

Effects – 

www.labo-k-effects.com

 – 

[email protected]

 

Equalizer   module 

 

 
 
Equaliser section : 

 

The equalizer is a 4-band type with mid 1 and mid 2 pe

a

king

 

and low and high bands 

peaking or shelving. Each band has

 

adjustable frequencies and cut

boost. The frequency 

bands

 

are overlapping and the cut/boost range is ±17dBs. Low and

 

high bands have a Q 

factor of 0.72 and mid 1 and mid 2 have a Q factor of 2.

 

 
 

 

     Insertion    

 

 

 

Equaliseur 

 

 
Insertion section : 

 
On Neve 51 series consoles,  insertion section  of mono input channel is fitted on 10882 
board on the equalizer module. 
This board,  named  ‘Patch Interface’, 

carries two electrically separate stages. A Hi level 

VMOS output amplifier (Insertion Send) and a line input stage (Insertion Return).

An 

extra +/- 25V psu is required by this circuit.  In addition,  insertion send and return are 
out of phase.  
This is due to the fact that phase inversion took place on the active patchbay of the 
console. 
For this reasons, it was decided to replace this 10882 board by a card that is suitable for 
rack mounting the modules. 
This board  (Labo K Neve 51 Insert  and  Output)  has an insertion output stage  (Send) 
based on a high quality line driver (SSM2142) witch provides a balanced 4dB. 
Insertion return stage  (Return)  meanwhile  is exactly the same fitted on the original 
10882 card. 

Finally, the buffer output stage of the channel and its gain setting were implanted on this 
board. 
All the circuits are now working with +/- 16v PSU and send and return are in phase. 

 

 

Содержание Neve 51 series LUNCH BOX VERSION

Страница 1: ...Labo K Effects www labo k effects com contact labo k effects com Neve 51 series LUNCH BOX VERSION...

Страница 2: ...K Effects www labo k effects com contact labo k effects com 2 contents CONTENTS 2 KEY FEATURES 3 OVERVIEW 4 PREAMPLI MODULE 5 DYNAMICS SECTION 6 EQUALISER MODULE 7 INTERCONNECTIONS 9 INTERNAL ADJUSTME...

Страница 3: ...icro input balanced XLR 3 pins Ligne input balanced XLR 3 pins Insertion send balanced 4dB Jack 6 35 stereo Insertion return balanced Jack 6 35 stereo Output balanced 4dB XLR 3 pins Power supply 220V...

Страница 4: ...an be set differently using a trimmer inside the rack OD switch wiring has been modified to allow the activation of the 48V power supply required for condenser microphones A yellow Led indicates the p...

Страница 5: ...ine sensitivity control gives a 12dB to 8dB gain contol by 2dB steps switched or via a potentiometer according to the version 3 Microphone Trim control gives a 10dB trim of the microphone gain and has...

Страница 6: ...levels and is approximately lOdBs The GATE ON OFF switching time constants are approximately 20mS to prevent audible Fourier clicks 4 THRESH Sets the level at which the three circuit functions operate...

Страница 7: ...ages A Hi level VMOS output amplifier Insertion Send and a line input stage Insertion Return An extra 25V psu is required by this circuit In addition insertion send and return are out of phase This is...

Страница 8: ...Labo K Effects www labo k effects com contact labo k effects com 8 Carte Labo K Neve 51 Insertion and Output...

Страница 9: ...the input of the device wherein the rack is connected if the latter does not have the input setting Internal adjustments Warning These settings should be performed by a qualified person Output level 1...

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