Specifications
SC 2.120
2 Channel Power Amplifier
CONTINUOUS OUTPUT POWER RATED AT 14.4 VDC AND 1% THD (WATTS):
SC 2.120
CO NT IN UOUS PO WE R OU TPUT
IN TO 4 OHM S TE RE O 120 W X 2CH
IN TO 2 OHM S TE RE O 210 W X 2CH
IN TO 4 OHM B RI DG ED 420W X 1CH
RE CO MM ENDED F US E SI ZE 2 X 25A
HE ATS IN K DIMEN SI ON S 10.5 1" (D ) X 1.91" (H ) X 8. 66"(W )
FR EQ UE NCY RES PO NS E 3dB, 20Hz - 20 KH z
SI GN AL T O NO IS E RATIO >90 dB
T.H.D 0.05 %
SI GN AL I NPUT SE NS E 300 m V - 8. 0 V
LP VARIA BL E X-OV ER 50 Hz - 2 50Hz @9 dB /O CTAVE
HP VARIA BL E X-OV ER 50 Hz - 2 50Hz @6 dB /O CTAVE
2 Channel Power Amplifier
SC 2.120
Product Manual
DUE TO ON-GOING CONTINUOUS PRODUCT DEVELOPMENT, FEATURES, SPECIFICATIONS AND AVAILABILITY ARE SUBJECT TO CHANGE WITHOUT NOTICE.
POWER CABLE CALCULATOR
Total Amperage 0-4ft 4-7ft 7-10ft 10-13ft 13-16ft 16-19ft 19-22ft 22-28ft
0-20 14 12 12 10 10 8 8 8
20-35 12 10 8
35-50 10 8
50-65 8
65-85 6
85-105 6
105-125 4
125-150 2
The above chart shows cable gauges to be used, if no less than a 0.5 volt drop is acceptable. If aluminum wire or tinned wire i s used, the gauges
sould be of an even larger size to compensate. Cable gauge size calculation takes into account terminal connection resistance. 1 Metre = 3.28 Feet
dB level example
30 Quiet library, soft whispers
40 Living room, refrigerator, away from traffic
50 Light traffic, normal conversation, quiet office
60 Air conditioner at 20 feet, sewing machine
70 Vacuum cleaner, hair dryer, noisy restaurant
80 Average city traffic, garbage disposals, alarm clock at 2 feet
8
6
6
4
2
8
6
4
4
4
2
8
6
4
4
2
2
0
The following noises can be dangerous under constant exposure
90 Subway, motorcycle, truck traffic, lawn mower
100 Garbage truck, chain saw, pneumatic drill
120 Rock band concert in front of speakers, thunderclap
140 Gunshot blast, jet plane
180 Rocket launching pad
Information courtesy of the Deafness Research Foundation.
6
4
4
2
2
0
0
6
4
4
2
2
0
0
6
4
4
2
2
0
0
Memphis Car Audio
122 Gayoso Ave.
Memphis, TN 38103
(901) 525-5711
memphiscaraudio.com
The Best P o w e r / So un d Qu al it y / Ef fici e n cy F r om Compac t S i ze .
H i g h e r e f f i c i e n c y a t a l l v o l u m e l e v e l s
U n i q ue s t a c k i n g c a p a b i l i t y
6
4
2
0
0
0
0
T h e b e s t s o u n d q ua l i t y w i t h o u t t a k i n g u p t oo m u c h r o o m
2 t i m e s t o 4 t i m e s hi g h e r o u t p u t p o w e r t h a n m o s t a n a l o g a m p l i f ie r
R e d u c e d p o w e r c o n s u m p t i o n
A s m a l l a m o u n t o f h e a t d i s s i p a t i o n
E a s y i n s t al l a t i o n
C l a s s - D D e l t a- S i g m a Te ch n o l o g y
2 O h m s t ab l e M O S F E T a m p l i f i e r d e s i g n
P W M M O S F E T p o w e r s u p p l y / M O S F E T o u t p u t s t ag e
A c c u r a t e s t a t e d a m p l i f i e r r a t i n g s
R e g u l a t e d a m pl i f i e r t e c h n o l o g y
Va r i a b l e h i g h - p a s s c r o s s o v e r ( 5 0 H z - 2 5 0 H z )
Va r i a b l e l o w - p a s s c r o s s o v e r ( 5 0 H z - 2 5 0 H z )
S u b s o n i c f il t e r ( 2 0 H z / O F F )
P r ot e c t i o n : T h e r m a l / S h o r t / O v e r - L o a d / D C o f f e s t
Operational Details
RMT
GND
+12V
77
FUSE
25A 25A
FUSE
250Hz
50Hz
9988
250Hz
50Hz
SPEAKER
BRIDGE MODE
L
2 Channel Power Amplifier
System Example
SC 2.120
1010
1111
1 Channel Installation
INPUT
LPL
REMOTE
LPL
REMOTE
OUTPUT
OUTPUT
R
L
INPUT
R
L
RMT
GND
SUB
SONI C
20Hz
+12V
FUSE
25A 25A
FUSE
SPEAKER
BRIDGE MODE
L
R
Bridge ModeBridge Mode
12
2 Channel Installation
RMT
INPUT
OUTPUT
LPL
REMOTE
R
R
GND
+12V
FUSE
25A 25A
FUSE
SPEAKER
BRIDGE MODE
L
R
L
5
6
(1)RCA INPUT : Connect these RCA connectors to a head unit with a LOW LEVEL output connection.
RCA OUTPUT: Use these RCA output connectors to connect to a secondary amplifier.
(2)SPEAKER OUTPUT
See installation diagram in this manual for correct speaker connection.
(3)FUSES : Please ensure correct type of fuse is fitted.
(4)+12V INPUT
This must be connected to the vehicle battery positive(+) terminal via correct power cable and with an inline fuse or circuit breaker
at the battery end. NOTE : This is to be the last wire connected during installation, as damage could result.
(5)REMOTE INPUT
This terminal is for turning the amplifier on and off. This requires a switched positive (+)12V to power 'ON' the amplifier, this can be
found on the rear of the head unit in the form of an electric antenna output, or a remote turn-on output. If not available you can wire to the
ACC position on the key.
(6)GROUND INPUT
Connect directly to the vehicle's chassis via correct cable. NOTE : This is to be the first wire connected when wiring up the
amplifier, as damage could result if this is not done.
(7)CROSSOVER SELECTOR
Set the appropriate mode of operation. The 3 positions available are OFF, LP and HP.
(8)SUBSONIC FILTER
This is a selectable switch that filters out 20Hz and below 12dB/octave.
(9)HIGH PASS
Set the crossover switch to HP and turn this control to 65Hz or above when using speaker's smaller than 6 x 9", this feature
is designed to filter out all low bass frequencies that only SUBWOOFERS should produce.
(10)LOW PASS
Set the crossover switch to LP when a subwoofer is connected. Ensure the crossover frequency is set at 100Hz or below.
(11)LEVEL (GAIN)
This allows level adjustment of the input signal. Use this control to correctly match the amplifier. To set this control correctly,
turn the amplifier level to MIN and the head unit to 3/4 volume, with the BASS and TREBLE on zero, then slowly turn up this amplifier
level control towards towards the MAX end of the control. NOTE : If the sound becomes distorted, turn this control down.
(12)POWER, STATUS AND THERMAL LED's
This shows if the amplifier has been correctly powered up and if any faults are present.
4
3
RemoteRemote
ControlControl
12
Set up Stacking
Top Cap
Self-Tapping Screw
(M4 x 20)
Tapping Screw
(M4 X 20)
Second Unit
First Unit
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