US Acoustics

IUI('SFET
P('I'VER
A]VIPLIFTERS
ttrongratrrlations
on your selection of this US Acoustics
USA SeriesAmplif ier. We take pride in
m a n u f a c t u r i n g o u r p r o d u c t s ,a n d y o u c a n
expect you r new amplif ier to give you
y e a r so f t r o u b l e - f r e es e r v i c e .
To make your installation as easy and
reliable as possible, please read this
manual carefully before beginning. lf
your
you need more information,
US AcousticsDealerwill be glad to help.
JTCT
TMr
!,/trt
2424BlandingAvenue,AlamedaCA 94501. (510)864-7005r FAX(510)8*1478
Ounnel's
lU|anual
C(DluTEIUTS
nnce @
F
E
I
Features
Specifications
Installation/Setti
ng LevelControls
USA 2-ChannelAm lifier Operation
USA 2-Channel Amplifier Operation
e
USA4o5oOperation
@
@
@
U544060 Operation
usA4080 0 ration
usA63000 ration
Ca ution
AT
U
R
E
USA2oltoal.U6rrtE{6dtilt5
USAZIOO.I
SAIE
USA2:ffi.HCF
USA23Oforun
S
@
. Full MOSFETpower supply employing
40 amp high-current switchfng deviced
. 5O nanosecond high-speed diodes
o Latch type protection circuit: in the
event of a fault condition (either a short
c i r c u i to n t h e s p e a k e rt e r m i n a l s ,o r D C o n
t h e s p e a k e rt e r m i n a l s ) ,t h i s p r o t e c t i o nc i r c u i t
w i l l s h u t d o w n t h e a m p l i f i e i .T h e a m p l i f i e r
must then be reset for'continued operation.
@
. Full MOSFET design, utilrznnghigh
current MOSFETSin a-lloutpurt *ag*
. Variable Low Pass 12 dB/ocJave
crossover in stereo amplifiers
( H i g h P a s si n m o d e l U S A 2 O 5 O H )
. Variable High and Low Pass
12 dB/octave-crossovent in 4 channel
amplifiers
. Thermal protection circuitry snuts ciown
t h e a m p l i f i e rw h e n i t r e a c h e sd 5 " C , a n d
a ut_ornatica
Ily
- resetswhen tem peratu re d rops
to 75"C.
o Thump-free turn on and turn off
. Reverse polarity protection
. Double differential input circuits
f o r i m p r o v e ds o u n d q u a l i t y
s
P
E
C
C
F
A
o
T
tu
s
@@@@@@E@@@@
POWER
OUTPUT
' 300Wx2CH
, 'l50Wx2CH
, 300WxXH50Wx4CH
200Wx2CH
sIwx:CH 75WnCH100Wx2CH
P e r c h a n n e l @ 4 O h m s5orrrtx2cH
input
@12.9v
'l201rVx2CH
. 400Wx2CH
300Wx2CH
150Wx2CH
250Wx2CH
. {OOW{CH80Wx4CH
@ 1 2 . 9 vi n p u t
SmWxlCH
/x1CH160Wx2CH
800\
600Wx1CH
300WxiCH
500Wx1CH
240V1hlCH
160Wx1CH
B r i d g e d M o n o @ 4 O h160V'fi1CH
ms
P e r c h a n n e l @ 2 O h m s80V,fi2CH80V1,ttH
@ 1 2 . 9 vi n p u t
TOTALHARMONIC
DISTORTION
NOISE
belowratedoutpul
U 5 5 T H A N 0 . .0. 1. .% . . . .
, lms
1mdB
dB
102
o' o
. .........
104dB
109dB
107
dB
110d8
104d8
' '
RATE
SLEW
. n. do . . . . . . . . . . . .
2 C r o f V m t c O srerCrO
PHASERESPONSE
u g g r n g 1 2 h g r e a a t. 2. .0 koH. .z. . . . . .
INPUTSENSITIVITY
. . h.
] f f i m V - 2 . Z V. O
IMPEDANCE
INPUT
5 6 K i l O 0.h. .m. . . . .
DAMPINGFACTOR
than100 . . . . . . . . . o . . . . . . . . ' o ' '
Grgatgr
PROTECTION
Polarity
Reverse
Thermal
ShortCircuit
D.C
109
dB
"
o'
1 0 0 m VI- 81v0 0 m V '180v 0 m V ' 2120v 0 m V ' 8 v
o. o o. o o....
Ohm 17Kilo:Ohm
Ohm 56Kilo
17Kilo
Ohm 17Kilo
o o.......
,
Yes
Yes
Ys
Ys
Ys
Ys
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
\b
YS
Yes
Yes
Yes
Ig'
r
Yes
Y,,s
Yes
IDLECURRENT
0.14
0.4A
0.4A
0.6A
0.9A
1.0A
1.0A
06A
t.5A
FUSERATING
t0A
l0A
ts
35A
35A
40A
404
25A
604
SIZE
(mm)
inches
WEIGHT
lbs.(ks)
Length
width
Height
\B
\a
Its
(450)
6s(16) 65i165) 7.9pm) 11.4i290i15.7(4S) 17.7
82009)
63(160) 6.3(1S)
63{t60} 6.3{160i il(tm)
(47.3)
t3{473} r.g(47.3) 1.e07.3) 1.9(47.3) r.s{473) 1.9
(3.63) 11
0( s)
4.0(1.8) 4.0i1:8) so(227) 8.0
4.0(l.8)
,
(500)
(450) 11.4
17,7
090) ,,'19,7
8.2CI0e)
63(160)
8.2(2oe)
r.g(47.3) 1.9(473)
1.9(47.3)
11.0{5) 7.00 2)
(s0
12.3
lu
E@I@@t!@@
60Wx4CH80Wx4CH50Wx4Cfland
500Wx2CH
50Wx2Cfl
75Wx4CH
and
700Wx2CH
90Wx4CH120Wx4CH
75Wx2CH
150Wx2CH
and
240Wx2CH
180Wx2CH
1400Wx1tH
150Wx1CH
CH5 &6ANLY
!00WxlCH
....
| E S S T H A N 0o. 0o1. .%
110d8
104dB
105dB
104d8
.. I r...
20voltVmicrosecond
I anoinn
17 Dpnrpps
at 70kHz . . .
100mV-8v
1 0 0 m V - 8 V. .O. .l .t . . . .
17KiloOhm
2 2 K i l O O. h. .m o o . . . . . .
G r g a t e r t h .a. n. .l.0. .0. .
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
1.5A
U.OA
60A
25A
Ye5
tc)
Yes
Yes
Ye5
Yx
Yes
Ypc
0.7A
1,0A
40A
1e7(500)
r1.4(?90)11.4(290)
c?/?no\
6?l1f,n\
1e(47
3)
(47
1,9
3)
u.-
\LuJt
v.J
\ | vw/
1 2 3 ( 5 6 e) 0 ( 4 r )
15,3
090)
82(2oe) 8.200e)
19(47.3) r.9{47,3}
7 e ( 3 6 ) 9,0
{4.r)
s
TA
L
LAT
ot
1. Locatea suitablemountinq location*c' :-: a*.l i f i e r ,m a k i n g s u r e t h e r e i s " s u f f i c i e n t ' . e - :- : : Use #8-32 screwsto bolt down the a-c -:--:
C o n n e c t a # 8 B L A C Kw i r e t o a l u o c c . - i : : : '
bolt it securelyto the amplifier ba"rrie.s:' : -a-i 3:
" G R O U N D " a n d , u s i n g t h e s h o r t e s tp o s s : ' € e - l : connect it to the chassisof the vehicle -s -: s u i t a b l el u g .
+ . Connect a #16 wire to a luo and bolt it S,oc-'3nr
:: :-.€
amplifierbarrierstrip marked " npV "(remole ar': :-€r
connect it to the remote outout of the r,e:: -- :
j'e5 . Run a #8 REDwire from the batterv to the e-:i
s
location. Insertthe supplied fuse holdenc 3s€ :: :-e
battery, not more than two (2) feet from l-e D.a::e',
Connectthe other end to a lug connecto- a-: 3'3:
it securelyto the amplifier barrierstrip markec '3rTT'
(+12v).
P/ease
Nofe:
Theenclosed
fuseholdershouldbe connected
asc/ose:: :-': :.:-.3-,
as possible.
recommends
#8 vn.t :-e *' --,.,'=
Althoughthemanual
for thefuseholdis morethanadeouate
for the shoce-Z-#,_
6. Connect the speaker systemsto the LEFTar c R,Gr.T
speaker outputs,taking care to observetne co-'ect
p h a s i n g( f o rM O N O ,M I X E DS T E R E O / M O N O
l - :, '4. ' . : *
and Bl-AMP operation, see respectiveparagrapFs - :- :
m a n u a lf o r s p e a k e rh o o k u p d e s c r i p t i o n s ) .
7. Connect a stereo siqnal source to the RCA ac<s
using high-quality sFielded RCA-RCA patc^ cac es.
SETTITUG
LEr'EL
C(DIIITROLS
In order to optimize the performance of yor,: scund
system, it is important to set the LEVELcontro s cf
the amplifier(s) correctly. Pleasefollow this srmc e
proceoure:
. Inserta CD or cassette
into headunit.
. SetLEVEL
to MINIMUM
controlon the amplifier(s)
(turn knob fullycounterclockwise).
o SetVOLUMEcontrol on head unit to about "3 o'cioc<'' llf
y o u r h e a d u n i t u s e s " u p / d o w n " b u t t o n s f o r v o i r r r r r es. e t
the " up" button to about a5%"of maximum vaiiie
. N o w r e s e tt h e L E V E Lc o n t r o l o n t h e a m p l i f i e r u n t i t r e
r e q u i r e d m a x i m u m l i s t e n i n gl e v e l i s a c h i e v e d .
STEREOOPERATIOIU
1 . C o n n e c t a l l o o w e r c o n n e c t t o n sa s d e s c r i b e du n d e r " l n s t a l l a t i o nI n s t r u c t i o n s".
2. Connect RCA inputs to a siereo signal source using RCA-RCA patch cables.
3 . C o n n e c t t h e s p e a k e r s y s t e m st o t h e s p e a k e r t e r m i n a l s , o b s e r v i n g t h e c o r r e c t
phases.
NOTE: The USA2OSOH, USA2O5O, USA2O75. USAZI(}(), and USA215O may be switched for LOW
PASS OPERATION (USA2Ot5Oll may be switched for HIGHPASS PASS OPERATION):-Slide the
crossover switch to the correct position, and set the crossover control to desired frequency-
I
ty|OIU(DOPERATI('lu
1 C o n n e c t a l l p o w e r c o n n e c t r o n s a s d e s c r i b e d u n d e r " I n s t a l l a t i o n I n s t r u c t i o n s ."
2. Connect the two RCA inputs together using a Y-adaptor,and then-feed the single
RCA input to a mono signal source, such as the low pass(subwoofer) output of an
electronic crossover.
3. Connect the woofer(s) to the speaker terminals as follows: The positive connection
of the woofer(s) to thre lett positive (+) output, and the negative connection of the
woofer(s) to the right negative (-) output.
NOTE: In mono operation, the right positive (+) and left negative
no connections made to them.
IUI
T
X
E
D
I
i
fr
{
H
('
il
O
f
S
T
E
(-) speaker terminals
R
E,
have
(o
The USA2O5O, USA2OZ!, USA.ZIOrO, and USAZI5O may be used in mixed mono/stereo mode
( F o r U S A 2 O 5 O H , m i x e d m o n o u s a g e w i t h c r o s s o v e ri n " F L A T " p o s i t i o n o n l y ) . T h i s m e a n s t h a t y o u m a y r u n
s a t e l l i t es p e a k e r so n t h e l e f t a n d r r g h t c h a n n e l s a s i n s t e r e o o p e r a t i o n , w h i l e s i m u l t a n e o u s l y p o w e r i n g a
mono subwoofer in "bridge mooe' as in mono operation.
'1.
C o n n e c t a l l p o w e r c o n n e c t i o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
2 . T h e s a t e l l i t es p e a k e r sc o n n e c t e d t o t h e l e f l ra n d r i g h t s p e a k e r t e r m i n a l s m u s t n o t h a v e
a n i m p e d a n c e o f l e s st h a n f o u r ( 4 ) o h m s e a c h , a r i d m ' u s t a l s o h a v e a p p r o p r i a t e h i g h p a s s , p a s s i v ec r o s s o v e r sc o n n e c t e d b e t w e e n t h e m a n d t h e s p e a k e r t e r m i n a l s .
3 . T h e s u b w o o f e r ( s ) a r e t h e n c o n n e c t e d a s d e s c r i b e d i n " M O N O O P E R A T I O N".
4 . T h e s u b w o o f e r ( s ) t o t a l i m p e d a n c e m u s t n o t b e l e s st h a n e i g h t ( 8 ) o h m s a n d m u s t
u t i l i z e a l o w - p a s s , p a s s i v ec r o s s o v e ra s s h o w n i n d i a g r a m . T o t a l s p e a k e r i m p e d a n c e
presented to each channel is two (2) ohms. This is determined by the tour ohm
s a t e l l i t ei n p a r a l l e lw i t h h a l f t h e s u b w o o f e r i m p e d a n c e ( 8 d i v i d e d b i 2 = 4 ) o f f o u r o h m s .
USA2OSOH,
USA2OSO,
USA2O75,
USA2.IOO,
,r'-----\/----\
\-/\-/
v
v
ttll
USA215O
oo@
oo@o
LEFT
and
r@
N]E'IT
OUStii['S
FRlC'ff
STSRE() INPUT
Prtre-
souRcE
(tromheadunit)
ilB&ousties" **^*^
RE'IR
STEREO
P'IilEL
o-b
\@
USA
OPERAITilIT
tNMfft
FRorr
iFR.o.r.ries' *,^,*
.:-
|F&o,rstics'
SERIES
RE/AR
(Hrl.F<.'-&-
e.E-'Hllillolo5o"
Use "Y-adaptor' tc.eea - & R
inputs with the sa-E s€i-a
PAilEL
lnOTUO OPEIUil'TOil
T moTEctoN
oo@
€<:
v
v
CDOCDO
h@
srEBEo,*"u,
souncE
FFOF
llAlrGt-
(rromheadunit)
HrrxED
tU|OITIolsTEREO
O]'ERATIOT
REF\R
PAIUEL
r }dGHPASS in
Rodel USA2050H
STERE('OPERATI('IU
1 . C o n n e c t a l l p o w e r c o n n e c t i o n sa s d e s c r i b e du n d e r " l n s t a l l a t i o nI n s t r u c t i o n s . "
2. Connect RCA inputs to a stereo signal source using RCA-RCA patch cables.
3 . C o n n e c t t h e s p e a k e r s y s t e m st o t h e s p e a k e r t e r m i n a l s , o b s e r v i n g t h e c o r r e c t
phases.
NOTE: These amplifiers may be switched for HIGHPASS PASS OPERATION: Slide the crossover
switch to the correct position, and set the crossover control to desired frequency.
lulOIUOOPERATIOTU
1 C o n n e c t a l l p o w e r c o n n e c t i o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
2. Connect the two RCA inputs together using a Y-adaptor,and then feed the sinqle
RCA input to a mon,o sig'nalsou"rce,such as"the low'pasi (subwoofer) output of an
electronic crossover.
3. Connect the woofer(s) to the speaker terminals as follows: The positive connection
of the woofer(s) to the left positive (+) output, and the negative connection of the
woofer(s) to the right negative (-) output.
NOTE: In mono operation, the right positive (+) and left negative
no connections made to them.
(-) speaker terminals
have
MIXEDUOTOfSTEREO
Alphasonik USA22O(DF, Model16100, USA23(X)F and Model1OOO may be used in mixed
m o n o / s t e r e o m o d e . T h i s m e a n s t h a t y o u m a y r u n s a t e l l i t e s p e a k e r so n t h e l e f t a n d r i g h t c h a n n e l s a s i n
s t e r e o o p e r a t i o n , w h i l e s i m u l t a n e o u s l yp 6 w e r i n j a m o n o s u b w 6 o f e r i n " b r i d g e m o d e " a i i n m o n o o p e r a t i o n
1 . C o n n e c t a l l p o w e r c o n n e c t i o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
1
'
2 . T h e s a t e l l i t es p e a k e r sc o n n e c t e d t o t h e l e f t a n d r i g h t s p e a k e r t e r m i n a l s m u s t n o t h a v e
a n i m p e d a n c e o f l e s st h a n f o u r ( 4 ) o h m s e a c h , a n d m u s t a l s o h a v e a p p r o p r i a t e h i g h pass, passive crossovers connected between them and the speaker terminals
3 . T h e s u b w o o f e r ( s ) a r e t h e n c o n n e c t e d a s d e s c r i b e d i n " M O N O O P E R A T I O N".
4 . T h e s u b w o o f e r ( s ) t o t a l i m p e d a n c e m u s t n o t b e l e s st h a n e i g h t ( 8 ) o h m s a n d m u s t
u t i l i z e a l o w - p a s s , p a s s i v ec r o s s o v e ra s s h o w n i n d i a g r a m . t o t a l s p e a k e r i m p e d a n c e
pres.entedto each channe_lis two (2) ohms. This is determined by the four bhm
s a t e l l i t ei n p a r a l l e lw i t h h a l f t h e s u b w o o f e r i m p e d a n c e ( 8 d i v i d e d b i 2 = 4 ) o f f o u r o h m s .
|U|odel
USA22OOE
6()(D, USA2SOOF
and
Model
1OOO
STEREOINPUT
sl)uRcE
(from head unit)
fraoo'"rio*
rc
REI\R
EIE-
Fl3ilT
r IXHPASS in
Ddd USA205OH
--,.
STEREO OPENffrrOil
P'IilEL
q oo *'-=c-:
A
4Ett ."rtt"s' ---
I
FffiTBTEf&R
Use 'Y-adaetor'toH
inputs with the sarne srgre
REAR
P'TilEL
|nOIUO OPERATIOT
GG
:
v
o€ct(D
Passive Hioh-Pass
Crcssler
STCNEOINPUT .
SOUBCE
(from head unit)
U]XED
tU|OilO/STEREO
OPERATIOT
|_TTT
rug"--REF\R
P'\IIIEL
USAI*O5O
4-C
HAIf,EL
A]U|PLIFIER
1 . C o n n e c t a l l p o w e r c o n n e c t l o n s a s d e s c n b e d u n d e r " I n s t a l l a t i o n I n s t r u c t i o n s ."
2 . C o n n e c t R C A i n p u t s t o a s t e n e os r g n a l s o u r c e u s i n g R C A - R C A p a t c h c a b l e s .
3. Connect the speaker systeri'rsto the speaker terminals, observing the correct
phases.
'Crossover" position allows the USA4O5O
Note: Setting the MODE switdr to
amp to use dhannels 1 &2 as hkrhpass channeli and Channels 3 & 4 as lowpass
channels. Adiust each frequencf cbntrol to the desired position.
BI.AMPOPERATIOIU
1 . C o n n e c t a l l p o w e r c o n n e c t t o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
2. Connect the RCA inputs 1 & 3 together using a Y-adaptor.Connect the RCA
i n p u t s 2 & 4 t o g e t h e r u s i n g a Y - a d a p t o r .T h e n f e e d t h e s e R C A i n p u t s t o a
stereo signal source.
'Crossover' position.
3. Set MODE switch to
tU|IXEDTOTOft5TEREO
may be used in mixed mono/stereo mode. This means
USA-series amplifier USA4TO!5O
that you may run satellitespeakerson ihe left and right channelsas in stereo operation,while
s i m u f t a n e o u - spl yo w e r i n ga m o n o s u b w o o f e r i n " b r i d g e m o d e " a s i n m o n o o p e r a t i o n .
1 . C o n n e c t a l l p o w e r c o n n e c t r o n sa s d e s c r i b e du n d e r " l n s t a l l a t i o nI n s t r u c t i o n s . "
2 . T h e s a t e l l i t es p e a k e r sc o n n e c t e d t o t h e l e f t a n d r i g h t s p e a k e r t e r m i n a l s m u s t n o t
h a v e a n i m p e b a n c e o f l e s st h a n f o u r ( 4 ) o h m s e a c h , a n d m u s t a l s o h a v e a p p r o p r i a t e
h i g h - p a s s , i r a s s i v ec r o s s o v e r sc o n n e c t e d b e t w e e n t h e m a n d t h e s p e a k e r t e r m i n a l s .
3 . T h e s u b w o o f e r ( s ) a r e t h e n c o n n e c t e d a s d e s c r i b e d i n " M O N O O P E R A T I O N".
4 . T h e s u b w o o f e r ( s ) t o t a l i m p e d a n c e m u s t n o t b e l e s st h a n e i g h t ( 8 ) o h m s a n d m u s t
u t i l i z e a l o w - p a s s , p a s s i v ec r o s s o v e ra s s h o w n i n d i a g r a m . T o t a l s p e a k e r i m p e d a n c e
presentedto each channel is two (2) ohms. This is determined by the loqr-ohm.
S a t e l l i t ei n p a r a l l e lw i t h h a l f t h e s u b w o o f e r i m p e d a n c e( 8 d i v i d e d b y 2 = 4 ) o f f o u r o h m s .
usA4('5('
gg
oo
ct|rtls!5t5
icn(tartD
€o
from FRONT and
REAR OUTPUTS Of
I{EAD UNIT
UsA
SERIES
B&ousties-
-*^,*
4.CHAIIIIUEL OPERATIOT
r froTEOoN -I
I
"l*@ @-?^^O
I
-MWER
INffi
ILI
I.
I
from
::--:s
cH3'oj--l
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STEREo OUTPUTS
of HEAD UNIT
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OPERATIOil
USA4OSO
4.(cHAIilEL
ArU|PLIFTER
1 . C o n n e c t a l l p o w e r c o n n e c t i o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
2. Connect RCA inputs to a stereo srgnalsource using RCA-RCA patch cables.
3. Connect the speaker s)6tems to the speaker terminals, observing the correct phases.
, r to a higher frequency for highpass operation.
to HIGHPASSo
4. Set CROSSOVERS
BI.AlylPOPERATTOIu
1 . C o n n e c t a l l p o w e r c o n n e c t i o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
2. Connect the RCA inputs 1 & 3 together using a Y-adaptor.Connect the RCA inputs
2 & 4 together usin$ a Y-adaptor.Jhen feed these RCA inputs to a stereo signal
source.
'l
3. Set SELECTORswitch for Channels & 2 to FLAT/HIGHPASS.
4. Set SELECTORswitch for Channels 3 & 4 to LOWPASS.
5 . S e t C R O S S O V E Rc o n t r o l s t o r e q u i r e d f r e q u e n c i e s .
lulIXEDN(of,OISTERE('
USA-series amptifier USAirDTSlDmay be used in mixed mono/stereo mode. This means
that you may run satellitespeakerson the left and right channelsas in stereo operation,while
simultaneouilypowering a mono subwoofer in "brid'gemode" as in mono operation.
1 . C o n n e c t a l l p o w e r c o n n e c t i o n s a s d e s c r i b e d u n d e r " l n s t a l l a t i o n I n s t r u c t i o n s ."
2 . T h e s a t e l l i t es p e a k e r sc o n n e c t e d t o t h e l e f t a n d r i g h t s p e a k e r t e r m i n a l s m u s t n o t
h a v e a n i m p e d a n c e o f l e s st h a n f o u r ( 4 ) o h m s e a C h , a n d m u s t a l s o h a v e a p p r o p r . i a t e
high-pass, passive crossovers connected between them and the speaker terminals.
3. The subwoofer(s) are then connected as described in " MONO OPERATION."
4 . T h e s u b w o o f e r ( s ) t o t a l i m p e d a n c e m u s t n o t b e l e s st h a n e i g h t ( 8 ) o h m s a n d m u s t
utilize a low-pass, passive crossover as shown in diagram. Total speaker impedance
presented to'each thannel is two (2) ohms. This is de"termined by the four ohm satellite
i n p a r a l l e lw i t h h a l f t h e s u b w o o f e r i m p e d a n c e ( 8 d i v i d e d b y 2 = 4 ) o f f o u r o h m s .
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REAR OUTPUTS of
HEAD UNIT
USA
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STEREO OUTPUTS
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OPCRATTOil
l. Connect all power connecfqrs a described under " lnstallation Instructions. "
2. Connect RCA inputs to a sE eo srgnal source using RCA-RCA patch cables.
3. Connect the speaker sy#r6torhe
speaker terminals, observing the correct phases.
4. Set LINE SELECTswitdlecbeither
HIGH or LOW.
5. Set 1+2 SELECTswitdr beitls
HIGH or LOW.
6. Set 3+4 SELECTswitdr beitls
HIGH or LOW.
7. Set 1+4 SELECT switdr b RAT - IHFORTANT!
8. The USA OSO now operaEs -r FIJIL RANGE.
SUBWOOFEN
OPERATIOT
1. Connect all power connectitms as described under " lnstallation Instructions. "
2. Connect RCA inputs to a stereo signal source using RCA-RCA patch cables.
3. Connect the speaker systerns to the speaker terminals, observing the correct phases.
4. Set LINE SELECTsrvitches to LO\i/ or H|GH.
5. Set 1+2 SELECTswitch to LOW position.
6. Set 3+4 SELECTswitch to LOW position.
7. Set 1+4 SELECTswitch to X/OVER8. All four channels are novrr in LOWPASS operation.
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SUBWOOFER
OPERATIOil
USA.TOAO
5-Cl|AIIEL
('PEIlATT('TU
BI-AlUIP
1. Connect all power connections as described under " lnstallation Instructions. "
2. Connect RCA inputs to a stereo signal source using RCA-RCA patch cables.
3. Connect the speaker slsterns to the speaker terminals, observing the correct
phases.
UIIA4OAO
AIy|PLIFIER
IICTIC
4. Set first LINESELECTswitdr to LOW position.
5. Set second LINESELECTswitdr to either 1+2 or 3+4.
6. Set 1+2 SELECTswitdr to HIGH position.
7. Set 3+4 SELECTswitdr to HIGH position.
8. Set 1+4 SELECTswitdr to XOVERusAloSo,
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SETTIGIS
9. Set SELECTOR switch to FLAT position.
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9. Set SELECTOR
switch to F|AT position.
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6-CHATXEL
TRI-AlU|P
OPERATI('IU
AtU|PLTFTER
1 . C o n n e c t a l l p o w e r c c - ^ e c : o - s a s 3 e s c rb e d u n d e r " l n s t a l l a t i o nI n s t r u c t t o n s".
2 . C o n n e c t R C A i n p u ' s r o a s : e - e c s : r a s o r r c e u s i n g R C A - R C Ay - a d a p t o r p a t c h c a b l e s .
3 ' C o n n e c t t h e s p e a k € ' s r s 1 € r s : c : - e s D e a K e tr e r m i n a l s ,o b s e r v i n gt h e c o r r e c t p h a s e s .
4. Set 1 + 2 HIGHPASS:o sri: :rree:e-s - :y,,pically
set at 4_5 kHz.
5. set 3 + 4 HIGHPASS
t o s u : i ? . 1o r a n E € s D e a k e r s- t y p i c a l l ys e t a t 1 o o H z .
6. set 3 + 4 LoWPASSto s.;i i'.r,o'6-_q€sDeakers- typically
set at 4-5 kHz.
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7. set 3 + 4 MoDEsvl,tc-to '3 !n"AV'
8. Set 5 + 6 MODE sw ic- to eine. S-!F.EO
9. Set 5 + 6 LOWPASS :to dooui 'trCC rz
5.CHAITI
T
E L
OPE|lAT
o ln MONO, subwoofers
mav be
wired in BRIDGE mode. Lowbass
crossover is then 24 dB/octdve-
I OIU
1 ' C o n n e c t a l l p o w e r c o n r r e € ' t i o r rass c e s c r r o e cu n d e r ' I n s t a l l a t i o nI n s t r u c t r o n s . , '
2 . c o n n e c t R C A i n p u t s : o a s l e r e o ' - o - : a n o r e a r s r g n a ls o u r c e u s i n g R C A - R c A
patch cables.
3 ' C o n n e c t t h e s p e a k e -s ! s : e - s i 3 : ' r e s D e a K e tre r m i n a l s ,o b s e r v i n gt h e c o r r e c t
phases.
4. Set 1 + 2 HIGHPASSto s..ri jro-r soeaKerstypically set at 10o Hz'
s ubwoofe*s) may be connected
in either
STEREO
or ERIDGE
mode'
Fotlow
wiring
5. Set 3 + 4 HIGHPASSto s- t '-earrvusN=
soeaKe-s
r
diagram on rear panelfor bridge mode
typi-aliy iei'Jt 1OO Hz
connections.Minimum impedanceis 2
Ohmsin bridge mode,
6. 3 + 4 LOWPASSis lnope.a: re.
7. Set 3 + 4 MODE switcn to '2 \q,Ay "
mode, the S + 6 Lowp.ass
g. Set 5 + 6 MODE swrtch to MONC. < - t1_1hrs
crossover has a slope of 24dB/octave.
9 . s e t 5 + 6 L o w P A S S t o s u r t s u b w o o f e r s - t y p i c a l l ys e t a t 1 o o H z .
1 0 . S e t L E V E Lc o n t r o l st o s u i t .
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from STEREO
SIGNAL S()URCE
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TRI-ATIP
OI'ERATIOTI
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cH^XNEr
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ftom FRONTAND
REAR OUTPUTS,
()F HEAD.UNIT
(Do
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o(t
FROTT
SFE'I|<ERS
-
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5-CHA|LlltEL
OPFRATIOIII
CAUTI(DT!
J u m p s t a r t i ng yo u r ve h i cl e ca n ca use lar ge voltage spikeswithin your autom obi l e's
electrical system. To prerrent damage to your stereo system, make sure the entire
system is shut down until full battery charge has been reached and jumper cables
have been removed from the battery.
We want you listening for a lifetime!
Used wisely, your new sound equipment will provide a lifetime of fun and
e n j o y m e n t . Si n ce h e a ri n g d a ma ge fr om loud sound is often undetectable unti l i t
is too late, USAcousticsand the Electronic Industry Association's Consumer
ElectronicsGroup recommerridyou avoid prolonged exposureto excessiveloud sound.
ex--d.,....,. Quiet libray, soft whispers
1 .,,3O,,,i1
40
Living roorrr, refrigerator, arnrayfrom traffic
Il
Light ffiC,
normal conversation, quiet office
, s O ' . '. , ' l
Air conditioner at 20 feet, sewing machine
60
Vacuum deaner, hair dryer, noisy restaurant
;., 7O"''
Average city traffic, garbage disposals,alarm clock at 2 feet
80
dB lenrGl
i
I
The
'
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1
I
t:r
follorring
$6,."'''
.
100
fi ".i)b
"
140
.,..
['l:..t,go
rroiscr
a
bc r|angerous
under
constant
exposure
Subwayr,rnotorcycle, truck traffic, lawn mower
Garbagetruck, chain saw, pneumatic drill
Rock band concert in front of speakers, thunderclap
Gunshot blast, jet plane
Rocket laundring pad
Information courtesy of the Deafness Research Foundation.
USAcorstics
Cornpany
2424 Blanding Ave., Alameda CA 94501 USA
1I
2424BlandingAvenue,AlamedaCA 94501: (510)8*7005 . FAX(510)854-1478