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Operation elements

 

 

SETTING THE INPUT AND SENSITIVITY 

The  regulator  for input  sensitivity is used  to  adapt  amplifier  for  each  car  radio  or  tape  deck.  Turn  the 
volume control of your radio to central position and adjust the input-level control (2) Fig. 5, to produce 
medium volume.  This setting can provide sufficient power and optimum Signal to Noise (S/N) ratio. 
CAUTION:  Do  not  run  the  amplifier  in  high  volume  for  long  time,  otherwise  the  loudspeakers  will  be 

damaged. 

 

LOW-PASS FILTER WITH ADJUSTABLE CROSSOVER FREQUENCY 

If  the  unit  is  used  as  a  subwoofer  amplifier,  turn  the  switch  (4)  to"  LPF".  And  set  proper  cross-over 

frequency with adjusting the control (5) to make the filter match the timbre requirement of the installed 
woofer. 
The crossover slope of the filter can accurately reduce the medium and high frequency ranges. 

 

HIGH-PASS FILTER WITH ADJUSTABLE CROSS-OVER FREQUENCY 

If  the  amplifier is  used  for  satellite loudspeakers  (mid-range/tweeter loudspeakers),  turn  switch  (4)  to 
"HPF". 
Set  proper  crossover  frequency  with  adjusting  the  control  (3).  The  frequencies  only  above  the  setting 
will be amplified. This can effectively minimizes distortions caused by excessive membrane movement at 

the low frequencies. And the result does not reduce the bass level when it is used for small power-supply 
loudspeakers. 

 
BASS-BOOST 

Use the bass-boost switch (6) to eliminate harmonic distortion of the lower bass frequencies and weaken 
the bass faction. 

 

OUTPUTS FOR CONNECTING ADDITIONAL AMPLIFIERS 

The input signal of the LOW INPUT connections L and R is directly output to the LINE OUT L and R jacks 
(1). 
Additional amplifiers can be connected to the LINE OUT jacks without additional T-plugs and cables.

 

Содержание SM-SA1002

Страница 1: ...SM SA1002 2 CHANNEL CAR AMPLIFIER 2 Instruction manual...

Страница 2: ...YEAR OF TROUBLE FREE SERVICE Table of contents TABLE OF CONTENTS 2 FEATURES 3 PRECAUTIONS READ FIRST 3 INSTALLATION 5 CONNECTIONS 6 OPERATION ELEMENTS 7 POWER SUPPLY REMOTE TURN ON CONNECTION 8 STEREO...

Страница 3: ...ion If the amplifier is to be mounted vertically be sure that it is in a place where adequate air will flow along the length of its heat sink fins for cooling NEVER mount the amplifier up side down th...

Страница 4: ...as sitting locked up for several hours in the hot sun or exposed to a very cold winter s day the amplifier may go into protection mode and shut off Leave the unit off until the ambient temperature ret...

Страница 5: ...be drilled for mounting NEVER use the amplifier as a template for drilling It is very easy to damage the amplifier surface in manner 3 Remove amplifier with a getting back the plastic panels Drill fo...

Страница 6: ...ive pole to the fuse must be 50cm for safety Install the fuse after other connections including the connection of the stereo and the loudspeakers Finally connect the terminal of the remote turn on to...

Страница 7: ...slope of the filter can accurately reduce the medium and high frequency ranges HIGH PASS FILTER WITH ADJUSTABLE CROSS OVER FREQUENCY If the amplifier is used for satellite loudspeakers mid range tweet...

Страница 8: ...for the ground to the battery negative pole 4 Battery 5 Automatic antenna connection If your car is not equipped with an automatic antenna connection connect this cable plus pole to the ignition lock...

Страница 9: ...tereo has two outputs and the unit is used to drive two loudspeakers The high pass filter must be activated if the amplifier drives satellite loudspeakers See section HIGH PASS FILTER WITH ADJUSTABLE...

Страница 10: ...10 Bridged mode If the amplifier needs high power output to drive a subwoofer connect and set it as shown in Fig 4 Fig 4...

Страница 11: ...X over switch HPF FLAT LPF 5 Low pass filter LPF adjusting knob the frequency ranges from 50Hz to 250Hz 6 Bass boost control 7 Indicator light Green light means amplifier is working Red light means s...

Страница 12: ...ound connection Audio lacks Speakers wired with wrong polarity causing cancellation of bass frequencies Check polarity of wires from amplifiers to each speak as defined by the system design Check batt...

Страница 13: ...Stereo separation 50 dB Signal to Noise Ratio 98 dB Input sensitivity 0 2V 7V Input impedance 10 KOhms Low pass filter 50 250 Hz High pass filter 100 Hz 2 2 kHz Bass boost 0dB 12dB Power supply 12V Ne...

Страница 14: ...14 2 14 15 15 17 18 19 20 21 22 23 24 25...

Страница 15: ...15 A MOSFET 12 0 12 5 5 27 2 0 5...

Страница 16: ...16 12 0 832 2 12 100 130...

Страница 17: ...17 4 3 5 3 0 1...

Страница 18: ...18 5 27 2 6 2 12 B 40 50 0 75 2 2 4 12...

Страница 19: ...19 2 5 4 LPF 5 4 HPF 3 Bass Boost 6 L R LINE OUT L R RCA 1 2xRCA 2xRCA...

Страница 20: ...20 1 12V 2 3 4 5 2...

Страница 21: ...21 3 3...

Страница 22: ...22 4 4...

Страница 23: ...23 1 2 3 100 2 2 4 HPF FLAT LPF 5 50 250 6 7 8 9 10 12 REM GND 5...

Страница 24: ...24 RCA RCA...

Страница 25: ...25 SM SA1002 14 4 2 x 100 4 2 x 190 2 1 360 4 400 2 8 10 25 000 0 01 50 98 0 2 7 10 50 250 100 2 2 0 12 12 30Ax1 295 x 64 x 240 1 9...

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