P A R A M E T R I C E Q U A L I Z A T I O N
T h e P 5 0 0 i s a 5 - b a n d p a r a m e t r i c e q u a l i z e r . I t s d e s i g n
a l l o w s t h e u s e r t o v a r y c e n t e r f r e q u e n c y , s e l e c t a “ Q ” o f 1 -
1 0 , a n d s e l e c t u p t o 1 8 d B o f b o o s t o r c u t .
Center frequencies
range from 20 Hz to 20 KHz. The on-
b o a r d f r e q u e n c y j u m p e r d i v i d e s t h e f r e q u e n c y r a n g e i n t o t h r e e
bands: 20 Hz to 200 Hz, 200 Hz to 2 KHz, and 2 KHz to 20 KHz.
S im pl y pl a c e t he j umpe r i n one of t he t hre e pos it i ons whi c h c or-
r e s p o n d s w i t h t h e f r e q u e n c y t o b e a d j u s t e d . T h e s p e c i f i c f r e-
q u e n c y i s t h e n s e l e c t e d v i a t h e “ f r e q u e n c y ” p o t e n t i o m e t e r
“Q”
d e t e r m i n e s t h e r a n g e o f f r e q u e n c i e s a f f e c t e d o n e i t h e r
s i d e o f t h e c e n t e r f r e q u e n c y .
“
Q ” i s e q u a l t o t h e c e n t e r f r e-
q u e n c y d i v i d e d b y t h e b a n d w i d t h . A s “ Q ” g o e s u p , b a n d w i d t h
d e c r e a s e s . T h e P 5 0 0 ’ s “ Q ” a d j u s t m e n t r a n g e s f r o m a n a r r o w
b a n d w i d t h o f 1 0 t o a v e r y b r o a d b a n d w i d t h o f 1 .
Boost / Cut
o n t h e P 5 0 0 i s + / – 1 8 d B . T h e r o t a r y p o t e n-
t i o m e t e r p r o v i d e s c o n t i n u o u s l y v a r i a b l e a d j u s t m e n t .
P 5 0 0 T U N I N G S E Q U E N C E
T h e P 5 0 0 i s d e s i g n e d t o b e “ s e t - u p ” o r “ t u n e d ” w i t h t h e a i d
of a R e a l T i m e S p e c t r u m A n a l y z e r m e a s u r i n g a p i n k n o i s e s i g-
n a l g e n e r a t e d b y t h e m o b i l e a u d i o s y s t e m . T h e a n a l y z e r p r o-
v i d e s v i s u a l f e e d b a c k w h e n f o l l o w i n g t h e s t e p s l i s t e d b e l o w .
R T A t h e s y s t e m a n d d e t e r m i n e p o i n t s o f a d j u s t m e n t . T u r n
t h e s y s t e m o f f a n d p l a c e e a c h o f t h e f r e q u e n c y r a n g e j u m p e r s
i n t o t h e i r c o r r e s p o n d i n g “ f r e q u e n c y r a n g e ” p o s i t i o n s .
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•
•
•
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•
installer’s reference
x t a n t t e c h n o l o g i e s
T
H I S D O C U M E N T H A S B E E N C R A F T E D T O M A K E I N S T A L L A
-
T I O N
,
SYSTEM
D E S I G N
A N D
TROUBLE
-
SHOOTING
,
A
Q U I C K
A N D E A S Y PROCESS
. T
H E C H A R T S P R O V I D E D
,
O F F E R A S I M
-
P L E M E T H O D O F D O C U M E N T A T I O N
.
I T I S I M P O R T A N T T H A T Y O U R E T A I N T H I S L O G
F O R Y O U R R E C O R D S . O
N
P A G E
8
O F T H E
O
W N E R
’
S
M
A N U A L
,
Y O U W I L L F I N D T H E
O
W N E R
’
S
R
EFERENCE
L
OG
.
O
N C E Y O U H A V E N O T A T E D T H E F I N A L SETTINGS F O R T H I S
P 5 0 0 ,
T R A N S F E R
T H O S E
SETTINGS
T O
T H E
O
W N E R
’
S
R
EFERENCE
L
OG
. I
N T H E F U T U R E
,
A N Y SYSTEM E X P A N S I O N
A N D
/
O R PROBLEMS M A Y B E REFERENCED T O T H I S LOG
.
I N S T A L L A T I O N S E Q U E N C E
REMOVE
P500
COVER
:
Loosen allen head screws and lift-off cover. Do not remove
p r o t e c t i v e c o v e r i n g o n s t a i n l e s s s t e e l l i d u n t i l i n s t a l l a-
t i o n i s c o m p l e t e .
TEMPORARILY MOUNT
P500:
T h e P 5 0 0 i s d e s i g n e d t o b e a n c h o r e d t h r o u g h t h e f o u r ( 4 )
h o l e s l o c a t e d o n t h e c i r c u i t b o a r d / b a s e a s s e m b l y .
MARK WIRES FOR TERMINATION AND REMOVE
P500:
Determine wire lengths for Power, Ground & Remote and
m a r k f o r c u t t i n g / t e r m i n a t i o n . R e m o v e P 5 0 0 b e f o r e c u t-
t i n g a n d t e r m i n a t i n g a l l w i r e s . C A U T I O N : s t r i p p i n g
w i r e s o v e r t h e c i r c u i t b o a r d m a y c a u s e p r o d u c t f a i l u r e .
INPUT SENSITIVITY
:
M a k e i n i t i a l a d j u s t m e n t t o i n p u t g a i n a t y o u r w o r k b e n c h .
R e f e r t o t h e s e c t i o n “ I n p u t S e n s i t i v i t y ” o n t h e r e v e r s e
s i d e .
B
ALANCED
L
INE
:
M a k e i n i t i a l a d j u s t m e n t a t y o u r w o r k b e n c h . R e f e r t o t h e
s e c t i o n “ B a l a n c e d L i n e ” o n t h e r e v e r s e s i d e
MOUNT THE
P500
AND MAKE ALL CONNECTIONS
:
R e - i n s t a l l t h e P 5 0 0 a n d m a k e a l l w i r e c o n n e c t i o n s . i . e .
Power, Ground, Remote and RCA i n p u t / o u t p u t s .
DOUBLE CHECK ALL CONNECTIONS
!
TURN ON
P500:
C h e c k r e d LED, i t s h o u l d b e o n .
MAKE ALL EQUALIZATION ADJUSTMENTS
:
R e f e r t o “ P 5 0 0 T u n i n g S e q u e n c e ” i n t h i s “ R e f e r e n c e ”
ADJUST NOISE GATE THRESHOLD
(
IF USED
):
Refer to “Activating the Noise Gate” on the reverse side
AFTER FINE TUNING THE SYSTEM
:
Remove protective covering from P500 and clean. A t t a c h
cover to base.
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•
•
•
•
•
I N S T A L L E R
’
S
R E F E R E N C E
L O G
D
A T E INSTALLED
:
O
W N E R
’
S N A M E
:
P
HONE
:
A
D D R E S S
:
C
I T Y
/ S
T A T E
:
Z
I P
:
V
E H I C L E
:
Y
E A R
:
X
T A N T
P 5 0 0
S E R I A L
#
MODES OF OPERATION:
(
C I R C L E S E T T I N G
)
I N P U T M O D E
:
4
C H A N N E L
2
C H A N N E L
B A L A N C E D L I N E
:
E N A B L E
D I S A B L E
N O I S E G A T E
:
O N
D E F E A T
P500 ADJUSTMENTS
(
DRAW POSITION O F CONTROL
&
CIRCLE FREQ
.
RANGE SELECTED
)
system components
S O U R C E
S E R I A L
#
PROCESSOR
(
S
)
S E R I A L
#
S E R I A L
#
A M P L I F I E R
(
S
)
S E R I A L
#
S E R I A L
#
S E R I A L
#
x t a n t t e c h n o l o g i e s
•
•
•
•
•
•
•
•
•
7 6 7 6 S
O U T H
4 6
T H
S
TREET
P
HOENIX
, A
RIZONA
8 5 0 4 0 U S A
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•
•
•
•
•
•
6 0 2 4 3 1 8 6 8 6
CENTER FREQUENCY
RANGE OF BOOST
/
CUT
LOW
“Q”:
A WIDER RANGE OF FRE
-
QUENCIES
(
ON EITHER SIDE OF THE
CENTER FREQUENCY
)
ARE AFFECT
-
ED BY EQUALIZATION
.
HIGH
“Q”:
A NARROW RANGE OF
FREQUENCIES
(
ON EITHER SIDE OF
THE CENTER FREQUENCY
)
ARE
AFFECTED BY EQUALIZATION
.
P e r f o r m t h e f o l l o w i n g s t e p s p e r b a n d:
W i t h t h e s y s t e m p l a y i n g p i n k n o i s e , t u r n o n t h e
RTA and adjust pink noise SPL to 85 – 90 dB.
Turn the boost/cut control to +18 dB (full clockwise
rotation). This will show the present center frequen-
cy and “Q” settings on the analyzer.
Rotate frequency control to the frequency you wish to
a d j u s t .
Adjust “Q” setting to match the width of the dip or
peak you are addressing.
Finally, adjust the gain control to achieve the desired
r e s pons e c ur ve .
Freq. Range
20 – 200 Hz
200 – 2 KHz
2K – 20 KHz
Freq. Range
20 – 200 Hz
200 – 2 KHz
2K – 20 KHz
Freq. Range
20 – 200 Hz
200 – 2 KHz
2K – 20 KHz
Freq. Range
20 – 200 Hz
200 – 2 KHz
2K – 20 KHz
Freq. Range
20 – 200 Hz
200 – 2 KHz
2K – 20 KHz
front “a”
front “b”
front “c”
rear “a”
rear “b”
+/– 18 dB
Q ADJUST
FREQ.
+/– 18 dB
Q ADJUST
FREQ.
+/– 18 dB
Q ADJUST
FREQ.
+/– 18 dB
Q ADJUST
FREQ.
+/– 18 dB
Q ADJUST
FREQ.
