Gebruiksaanwijzing /service van het product EQ MAGIX van de fabrikant Sound Performance Lab
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SOUND PERFORMANCE LABORA TORY O O w w n n e e r r ´ ´ s s M M a a n n u u a a l l.
SOUND PERFORMANCE LABORATORY EQ MAGIX Owner´s Manual by Hermann Gier Manual version 2.1/94 The information in this document has been carefully checked and is assumed to be correct. However Sound Performance Laboratory (SPL electronics GmbH) reserves the right to modify the product described in this manual at any time.
3 Contents F orew ord 4 Introduction 4 T he c oncept of sound processing in t he EQ MAGIX 7 Inst allation 9 Inputs & outputs 9 P ower suppl y 10 Rear panel 11 Connection ex amples 11 Control eleme.
4 Dear cust omer , T hank you f or the c onf idence you hav e shown towards SPL electronics GmbH by purc hasing the SPL EQ MAGIX. T he EQ MAGIX is a first-rate Equalizer wit h ex emplary s pecifications , ex cellent w orkmanship and unri- valled sound quality .
5 The I I N N P P U U T T section features a microphone preamplifier with 48V phantom power supply, P HASE R EVERSE and L INE -30 dB switch, P EAK indicator I I N N S S E E R R T T jacks between microphone preamplifier and PARAMETRIC equalizer.
6 4. V IT ALIZER ® ® : T he V IT ALIZER is an equalizer c oncept whic h makes use of scientif ic psyc hoacous tic tec hnol ogy to process audio signals .
7 The concept of sound processing in the EQ MAGIX The P ARAMETRIC section serves to perfectly remove any interference frequency or to accentuate a frequency band as desired.
8 T he V IT ALIZER is t he creative sound c omponent in the EQ MAGIX. It w orks »intelligentl y«, provided t he appropriate paramet ers are preselected.
9 T he housing of t he EQ MAGIX has the s tandard 19" EIA f ormat and occupies 1 height unit (1 U = 44 mm) in your rac k. W hen installing t he unit in a 19" rac k, the rear side of t he unit needs some support, es pecially in a T ouring Case .
10 Special attention has been paid t o the pow er supply of t he EQ MAGIX. T he pow er pac k is the heart of any unit, and t he more accurately it w orks , t he more this improv es results.
11 Rear panel E E Q Q M M A A G G I I X X r r e e a a r r p p a a n n e e l l electronically balanced mic/line input; pin 2 = hot / pin 3 = c old unbalanced I NSERT S END /R ETURN jac ks outputs: XLR .
12 Input Mic / Line Line -30 B T he I NPUT st age of the EQ MAGIX is based on t he SSM 2017 semic o n- ductor . The s trengths of t his particular component are its e xtremely l o w noise and distortion c haracteristics .
13 P eak 3 Phase reverse 4 T he I NPUT section of t he EQ MAGIX is equipped with a P EAK LED w hic h lights up approximat el y 3 dB below the value w hic h would signify pot en- tial overdriving of t he output (I NSERT S END ). T he headroom of the I NPUT stage is around 26.
14 Inser t Input All microphones wit h balanced floating output, i.e . also microphones equipped wit h tubes can be used when t he phantom volt age is switc hed on.
15 T he A CTIVE f unction switc hes the P ARAMETRIC equalizer on or of f . If the switc h has been pressed, the int egrated LED indicat es that t he P ARAMETRIC section has been activated. T he A CTIVE f unciton is a so-called "electronic bypass".
Practical applications bring accurate processing of subw oof er trac ks to mind, along with a problem w hic h modern rec ording procedures (PCM, hard disk, samplers etc .) frequently inv olv e; here , the frequencies rec orded are often in t he infra-sonic frequency range (digital c oding).
17 Parametric W hen the Q pot entiometer is tur ned to the e xtreme left, the band widt h around t he selected centre frequenc y is very narrow . T his is known as »high Q« wit h a value of Q3.6. W hen it is turned t o t he extreme right, t he selected band width is of maximum widt h, i.
18 ristics can be altered from G ENTLE to S TEEP , (also see point 9: B OOS T /C UT , page 16). I I m m p p o o r r t t a a n n t t : : If you swit c h on t he N OTC H mode , the band widt h c ontrol Q mus t be set at 0.6 (e xtreme right), so as to ensure a 1:1 lev el ratio with t he original signal.
19 Deleting an interference frequency T wo possibilities are a vaila ble with t he EQ MAGIX to delete a int erf e- rence frequency: 1. T he C UT mode wit h max. attenuation of 15 dB 2. T he N OTC H mode wit h max. attenuation of 30 t o 50 dB . In order to localize and delet e an interf erence frequenc y proceed as f ollows: 1.
20 The initial settings on the V ITALIZER Switching on the V ITALIZER section 1.The P ROCESS control 2. The B ASS control 3. The M ID -H I T UNE control Introduction into the VITALIZER ® If you are w.
21 tiometer scaling: t he l ower t he frequency , the bright er and c learer sounds t he programme material. T his is because the M ID -H I T UNE c ontrol sets a starting frequenc y above w hic h all frequencies are processed. If this st ar- ting frequency is low ered, t he frequency s pectrum inc luded in processing increases .
22 The VITALIZER's control elements Active P eak +10 B p T he A CTIVE f unction switc hes the V IT ALIZER section of the EQ MAGIX on or of f . The s tatus LED indicat es that t he V IT ALIZER has been activated. As wit h the P ARAMETRIC s tage , t he A CTIVE f unction of the V IT ALIZER stage is an »electronic bypass«.
23 T he B ASS c ontrol is res ponsible f or the »c ol our« of the bass sound y our signal is to ha ve . If you move t he B ASS c ontrol to the right, y ou get a drier , percussive bass sound, known as T IGHT .
24 Deep Mid-Hi T une 17 18 T he D EEP circuit increases t he processed bass range . The bass range enc l oses frequencies betw een ca. 20 Hz and 110 Hz with a bass centre frequency at 50 Hz. T he D EEP f unction enlarges this range t o approx. 16 Hz to 140 Hz wit h the same bass centre frequenc y and increases the amplif i- cation level b y ca.
25 Fig. 8: Five frequency responses are shown for the M ID -H I T UNE filter at max. P ROCESS value and B ASS at 0. 1. 1 kHz 2. 2 kHz 3. 3,5 kHz 4. 8 kHz 5. 20 kHz Fig. 9: The dotted line shows frequency responses for a soft Bass (S OFT )a t varying P ROCESS and a M ID -H I T UNE of 3.
26 Combine 21 T he V IT ALIZER w orks with st eep f ilters and c ontrolled c hanges of the phase relationships of t he harmonics t o process t he harmonics s tructure .
27 Output T he O UTPUT section is an output st age with activ e P AN c ontrol. A double Mono signal is produced from t he Mono input signal whic h is availa ble via t he balanced and unbalanced outputs . T he output signals can be f ed to tw o insert returns on t he mixing desk, a recorder or a s tereo ef f ects processor .
28 EQ MAGIX Specifications F F r r e e q q u u e e n n c c y y r r a a n n g g e e 10 Hz - 100 kHz (100 kHz = -3dB) E E q q u u a a l l i i z z e e r r F F r r e e q q u u e e n n c c y y r r a a n n .
29 SPL electronics GmbH (hereafter called SPL) products are warranted only in the country where purchased, through the authorized SPL distributor in that country, against defects in material or workmanship.
SOUND PERFORMANCE LABORA TORY SPL electronics GmbH, Tel. +49-(0) 21 63 / 98 34-0, Fax +49-(0) 21 63 / 98 34-20 Factory address: Sohlweg 55; D-41372 Niederkrüchten Postal address: P.
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