SIGNAL & SPEAKER CONNECTIONS

Connect the RCA output of the head unit (AM/FM cassette player, CD, or DAT) to the RCA input terminals of the amplifier.

To make these connections, we recommend high quality RCA cables, which are available at your local car audio retailer. Run signal wires away from electrical wires to avoid possibility of induced noise from the car's electrical system (i.e. popping noises or engine noise). Please note that when making these connections the signal inputs correspond with the speaker outputs.

QS2150 & QS2250 CONNECTIONS (STEREO MODE)

In this example we have selected

HPF (High Pass Filter) for our XOVER.

Adjust the HPF (High Pass Frequency)

Set the “MODE” switch

to desired crossover point for your speakers

to the STEREO position.

line

L

 

L

R

R

output

Optional full range line out connection to additional amplifiers in the system.

+ - GND - +

lpf

HI

 

 

 

 

INPUT

 

 

full hpf

MONO

5v .2v

 

 

 

STEREO

0dB 12dB

60Hz 1.2KHz

30Hz 250Hz

 

LEVEL

BASS

HPF

LPF X-over

Mode

 

EQ

 

 

 

L

R

POWER INPUT

FUSE

SPEAKER OUTPUT

 

 

L

GND REM +12V

POWER

BRIDGED

 

PROTECT

 

 

+

- 4 Ohm Speakers

(2 Ohm Minimum)

+-

7

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Quantum Audio QS4250, QS4150, QS1500D Signal & Speaker Connections, QS2150 & QS2250 Connections Stereo Mode