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Magnat XPRESS 12 Manual

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ANSLUTA TILL EFFEKTFÖRSTÄRKAREN
Subwoofern bör alltid anslutas till en extern effektförstärkare. Denna förstärkare
tillhandahåller nödvändig elektrisk effekt och lämplig dynamisk prestanda.
Bruksanvisningen innehåller även ett anslutningsschema som är avsett för drift av en
subwoofer.
I effektförstärkarens grundutrustning ingår även ett aktivt delningsfiler (lågpass) som kan
användas för att eliminera oönskade mellantoner från subwoofern.
EXTRA PASSIVA FILTER
För det fall att du inte har tillgång till en aktiv filterkrets (t ex om du använder ett
monoblock eller ett tvåkanalssteg i tri-mode), måste ett passivt delningsfilter överta
denna uppgift. Välj ur delningsfrekvensen för din subwoofer och koppla samman
komponenterna på följande sätt.
Delningsfrekvens Subwoofer Spole L / Kondensator C /
min. tråddiameter Spänningshållfasthet
60 Hz 380 mm 15 mH / 1.5 mm² 470uF / 100Vdc
80 Hz 380/300 mm 12 mH / 1.0 - 1.5 mm² 330uF / 100Vdc
90 Hz 300 mm 10 mH / 1.0 mm² 330uF / 100Vdc
110 Hz 300/250 mm 8.2 mH / 0.7 - 1.0 mm² 220uF / 100Vdc
130 Hz 250 mm 6.8 mH / 0.7 mm² 220uF / 100Vdc
160 Hz 250/200 mm 5.6 mH / 0.5 - 0.7 mm² 150uF / 100Vdc
Bild 3
Om du använder subwoofers kan du höja dynamiken i ditt audiosystem flera gånger om.
För att skydda dina diskant-mellantonssystem rekommenderar vi att du skyddar dem
med en extra skyddskondensator (100 - 200 uF i seriekoppling före det kompletta
diskant-mellantonssystemet).
… 34 …


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