API Audio A2D Mic Preamp Handleiding
API Audio
Audiorecorder
A2D Mic Preamp
Lees hieronder de 📖 handleiding in het Nederlandse voor API Audio A2D Mic Preamp (14 pagina's) in de categorie Audiorecorder. Deze handleiding was nuttig voor 36 personen en werd door 2 gebruikers gemiddeld met 4.5 sterren beoordeeld
Pagina 1/14
T h e A P I
D U A L 3 1 2 M I C P R E A M P S
W I T H D I G I T A L O U T P U T
A P I , 8 3 0 1 P a t u x e n t R a n g e R o a d , J e s s u p , M D 2 0 7 9 4 T e l : 3 0 1 - 7 7 6 - 7 8 7 9
w w w . a p i a u d i o . c o m
A D
2
A B A S I C O V E R V I E W O F T H E A P I A
2
D M I C P R E A M P
T h a n k y o u f o r c h o o s i n g t h e A P I A
2
D M i c r o p h o n e P r e a m p .
T h e A
2
D r e p r e s e n t s a l a n d m a r k a c h i e v e m e n t f o r A P I ; i t i s t h e f i r s t p r o d u c t e v e r p r o d u c e d b y
t h e c o m p a n y w i t h a n i n t e g r a t e d d i g i t a l o u t p u t . R e c o g n i z i n g t h e d e s i r e f o r a h i g h q u a l i t y s o l u t i o n
t o r a i s e m i c r o p h o n e s i g n a l s t o a w o r k a b l e l i n e l e v e l , w e e n g i n e e r e d o n e o f o u r m o s t p o p u l a r
m i c p r e a m p d e s i g n s i n t o a n e n c l o s u r e w i t h o u r n e w p r o p r i e t a r y a n a l o g t o d i g i t a l c o n v e r t e r . T h e
r e s u l t i s a c o m p l e t e p a c k a g e - a p a i r o f s u p e r b m i c p r e a m p s f e e d i n g a n A / D s e c t i o n w i t h a s e t
o f s t a n d a r d d i g i t a l i n t e r f a c e o u t p u t s , m u l t i p l e s a m p l e - r a t e c h o i c e s , a n d i n t e r n a l o r e x t e r n a l
c l o c k o p t i o n s . P r e c i s e c o n t r o l o f b o t h t h e a n a l o g g a i n a s w e l l a s t h e l e v e l f e e d i n g t h e d i g i t a l
s e c t i o n m e a n s t h a t t h e m i c s i g n a l c a n b e m a i n t a i n e d s u p e r - c l e a n i f d e s i r e d , o r d r i v e n h a r d e r o n
t h e a n a l o g s i d e f o r t h a t w h a l l o p a n d i m p a c t t h a t c a n o n l y b e a c h i e v e d b y d r i v i n g t h e
t r a n s f o r m e r i n t o s a t u r a t i o n f o r t h a t h i s t o r i c A P I s o u n d !
T h e A
2
D a n a l o g s e c t i o n c o n s i s t s o f t h e c i r c u i t r y c o n t a i n e d i n t w o A P I 3 1 2 m i c p r e a m p s , o r o n e
h a l f o f t h e p o p u l a r 3 1 2 4 q u a d m i c p r e a m p r a c k p r o d u c t . A l e v e l c o n t r o l p o t w i t h a n e x p a n d e d
2 0 - s e g m e n t m e t e r i n g s y s t e m s h o w s p r e c i s e m i c g a i n l e v e l s . C o n t r o l s w i t c h e s i n c l u d e p o l a r i t y ,
4 8 v p h a n t o m p o w e r , i n p u t p a d , 2 : 1 t r a n s f o r m e r r o u t i n g , a n d M i c / L i n e s e l e c t . E a c h a n a l o g i n p u t
c o n t a i n s a b a l a n c e d l o w - l e v e l X L R c o n n e c t o r a n d a h i g h - l e v e l l i n e i n p u t o n a 1 / 4 i n c h j a c k .
T h e D i g i t a l s e c t i o n o f t h e A
2
D i n c l u d e s t w o l e v e l p o t s t o a d j u s t t h e f e e d t o t h e A / D c o n v e r t e r s ,
e a c h w i t h a c o r r e s p o n d i n g 2 0 - s e g m e n t c a l i b r a t e d m e t e r . A m u l t i - p o s i t i o n s w i t c h s e l e c t s t h e
d e s i r e d s a m p l e f r e q u e n c y . T h e E x t e r n a l S y n c L E D w i l l l i g h t w h e n a n e x t e r n a l c l o c k s i g n a l i s
u s e d .
R e a r p a n e l A n a l o g c o n n e c t o r s i n c l u d e a n X L R i n p u t a n d o u t p u t f o r e a c h c h a n n e l , a s w e l l a s a
b a l a n c e d 1 / 4 " T R S i n s e r t t o t h e A / D c o n v e r t e r . T h i s a l l o w s t h e A
2
D t o h a v e e x t e r n a l a n a l o g
p r o c e s s i n g d e v i c e s i n s e r t e d i n t h e a u d i o c h a i n ( E Q , c o m p r e s s i o n , e t c . )
D i g i t a l i n t e r f a c e c o n n e c t o r s p r o v i d e d a r e S P D I F s i n g l e e n d e d R C A c o n n e c t o r a n d A E S d i g i t a l
o u t o n X L R . A c o a x i a l B N C a c c e p t s e x t e r n a l " R e f e r e n c e C l o c k " w h i c h w i l l i l l u m i n a t e t h e f r o n t
p a n e l E X T S Y N C L E D w h e n l o c k e d .
N O T E : T h e w o r d " R e f e r e n c e o r S u p e r C l o c k " i s u s e d t o i n d i c a t e t h e u s e o f a c l o c k r e f e r e n c e
t h a t i s b e t w e e n 2 0 a n d 2 6 M H z - n o t a c l o c k f r o m a s p e c i f i c m a n u f a c t u r e r . G e n e r a l l y , t h e u s e
o f a s a m p l e o r w o r d c l o c k w i l l n o t o u t p u t t h e h i g h e r r e f e r e n c e f r e q u e n c y c l o c k s i g n a l r e q u i r e d .
I n s o m e c a s e s t h e u s e o f a s a m p l e o r w o r d c l o c k w i l l i l l u m i n a t e t h e S Y N C i n d i c a t o r , b u t t h e u n i t
w i l l n o t s y n c t o i t b e c a u s e i t i s t o o s l o w o f a c l o c k . T h e c l o c k i n p u t M U S T b e b e t w e e n 2 0 a n d
2 6 M H z f o r t h e A
2
D t o w o r k c o r r e c t l y .
I n a d d i t i o n , a W o r d C l o c k I n p u t a n d O u t p u t P a n e l a l l o w s t h e u s e o f e x t e r n a l w o r k c l o c k , w h i c h
i s t h e n u p - s a m p l e d t o m a t c h t h e A 2 D ' s r e q u i r e d r e f e r e n c e c l o c k .
A p a i r o f 9 - p i n D - s u b c o n n e c t o r s a l l o w t h e l i n k i n g o f m u l t i p l e A
2
D u n i t s , a l l o p e r a t i n g o f f t h e
f i r s t s a m p l e - r a t e c l o c k i n t h e c h a i n .
P A G E 2
A n a l o g M i c / L i n e I n p u t S e c t i o n - ( A n a l o g A a n d B )
P A G E 3
G A I N L I N E
PO L 48 V PAD 2:1 M IC
a n a l o g A
- 3 0 - 2 7 - 2 4 - 2 1 - 1 8 - 1 5 - 1 2 - 9 - 6 - 3 0 3 6 9 1 2 1 5 1 8 2 1 2 4 2 7 - 3 0 - 2 7
G A I N :
T h e G A I N p o t s e t s t h e i n p u t s i g n a l g a i n a n d h a s a m i n i m u m g a i n o f + 3 4 d B a n d a
m a x o f + 6 5 d B . M i c r o p h o n e i n p u t i m p e d a n c e i s 1 5 0 0 o h m s .
P O L :
C h a n g e s t h e p o l a r i t y o f t h e m i c r o p h o n e i n p u t o n l y ( n o t t h e l i n e i n p u t ) .
I n p u t m e t e r :
I n p u t m e t e r h a s a r a n g e
o f 3 0 d B t o + 2 7 d B a n d
i s p e a k r e a d i n g .
P A D :
I n p u t a t t e n u a t i o n P a d o f 2 0 d B
M I C : W h e n s e l e c t e d ( L i t ) , t h e M i c r o p h o n e i n p u t o n t h e r e a r p a n e l i s t h e
a c t i v e i n p u t .
2 : 1 :
A t t e n u a t i o n o f - 1 0 d B b y t a p s e l e c t i o n o n t h e M i c r o p h o n e p r e a m p o u t p u t
t r a n s f o r m e r . T h i s r e d u c e s t h e a m o u n t o f g a i n c r e a t e d b y t h e o u t p u t
t r a n s f o r m e r i t s e l f , a n d a l l o w s t h e 2 5 2 0 a m p l i f i e r t o b e o p e r a t e d a t h i g h e r g a i n ,
i f d e s i r e d .
T h e r e a r e t w o i d e n t i c a l s e c t i o n s
A n a l o g A
and
A n a l o g B .
E a c h h a v e t h e s i g n a t u r e 3 1 2 4 M i c r o p h o n e p r e a m p d e s i g n .
4 8 V :
A p p l i e s P o s i t i v e 4 8 v t o t h e m i c r o p h o n e i n p u t t o p o w e r c o n d e n s e r - t y p e m i c s .
L I N E :
D i r e c t I n p u t w i t h H i g h Z - [ i m p e d a n c e ]
Product specificaties
| Merk: | API Audio |
| Categorie: | Audiorecorder |
| Model: | A2D Mic Preamp |
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Als je hulp nodig hebt met API Audio A2D Mic Preamp stel dan hieronder een vraag en andere gebruikers zullen je antwoorden
Handleiding Audiorecorder API Audio
20 November 2024
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