SM2-400 / SM2-1000 / SM2-1200 / 2-CHANNEL AMPLIFIER APPLICATIONS

Stereo high pass with mono low-pass in a 2 way active, or bi-amplified system

In this application we will use a 2 channel amplifier for the high frequencies, and a second one for the low frequencies, or mono sub bass. Please consult the speaker specifications to determine maximum amplifier power requirements.

Interconnect cable checklist:

Connect the inputs of the HIGHS amplifier to a Radio/CD with good quality RCA cables. Connect the LINE OUT of the HIGHS amplifier to the inputs of the BASS amplifier with a stereo RCA to RCA cable.

Mono bass woofer wiring:

Connect the mono speaker positive terminal to the RIGHT +, and its negative terminal to LEFT -.

Switch setting checklist:

-Highs amplifier: X-OVER switch in the HPF position.

-Lows amplifier: X-OVER switch in the LPF position.

Crossover frequency control checklist:

Highs amplifier:

-HI PASS: 100 Hz

-LOW PASS: N/A

Lows amplifier:

-HI PASS (Subsonic filter): 10 Hz to 40 Hz

-LOW PASS: 100 Hz

Please note that these frequency points are suggestions only. Refer to the loudspeaker manufacturer specifications and the section “Setting up systems after installation for best performance”

Level control checklist:

-Refer to the section “Setting up systems after installation for best performance”

Minimum final loudspeaker impedances:

-2-Ohms per channel stereo.

-4-Ohms mono bridged.

STEREO

HIGHS

SPEAKERS

FULL RANGE

STEREO LINE INPUT

LINE OUT

R

L

LINE

R

L

INPUT

H

+ -

 

PUT

nd - +

 

5V 0.2V

LEVEL

 

0dB 12dB

BASS EQ

 

60Hz 1.2KHz

HPF

 

30Hz 250Hz

LPF

 

FULL LPF HPF

X-OVER

 

MONO STEREO

MODE

2CHANNEL HIGHS AMPLIFIER

 

+

 

SPEAKEROUTPUT

RIGHT

RIDGE

LEFT

 

-

 

 

+

 

 

-

 

 

POWER

PROTECT

FUSE

 

 

POWER INPUT

GND REM +12V

 

TO BATTERY +12 Volts VIA FUSE

REMOTE TURN-ON

CHASSIS GROUND

STEREO

INTERCONNECT

RCA CABLE

MONO BASS

SPEAKER

LINE OUT

R

L

LINE

R

L

INPUT

HI INPUT

- gnd - +

 

 

5V 0.2V

LEVEL

 

0dB 12dB

BASS EQ

 

60Hz 1.2KHz

HPF

 

30Hz 250Hz

LPF

 

FULL LPF HPF

X-OVER

 

MONO STEREO

MODE

2CHANNEL SUB BASS AMPLIFIER

 

+

 

SPEAKEROUTPUT

RIGHT

BRIDGED

LEFT

 

-

 

 

+

 

 

-

 

 

POWER

PROTECT

FUSE

 

 

POWER INPUT

GND REM +12V

 

TO BATTERY +12 Volts VIA FUSE

REMOTE TURN-ON

CHASSIS GROUND

4

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AutoTek SM1-100.1, SM4-800, SM2-1000, SM2-1200, SM4-1000 Stereo Highs Speakers Full Range Stereo Line Input, LOW Pass N/A

SM2-400, SM4-1000, SM1-150.1, SM2-1000, SM4-800 specifications

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