SIGNAL 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 possibil- ity of induced noise from the car’s electrical system (i.e. popping noises or engine noise).
in | out |
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| level | subsonic | lpf | bass |
L | boost | |||
R | min max | 20Hz 50Hz | 40Hz 130Hz | 0dB 18dB remote |
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| spa1300D |
classD monoblock amplifier | |
L R | MONO SIGNAL |
to addition addition in the system. | |
Optional full range line out connection |
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94.7 | CONNECTION |
in | out |
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L | level | freq | bass boost |
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| low full high |
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R | min max | 60Hz 400Hz | 0dB 18dB |
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| spa90.2 |
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| classAB 2 channel amplifier |
L | R |
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| Optional full range line out connection | |
94.7 |
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| to addition addition in the system. SIGNAL CONNECTION: | |
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| 2 CHANNEL AMPLIFIERS |
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| input | remote | |
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| ch 1 | ch 3 | |
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| low full high | low full high | ||
0dB 18dB 60Hz 400Hz | min max | min max | 60Hz 400Hz 0dB 18dB | |
bass | freq | input | input | freq bass |
boost |
| level | level | boost |
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| ch 2 | ch 4 | spa150.4 |
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| classAB 4 channel amplifier |
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| L R | L R |
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| 94.7 |
| SIGNAL CONNECTION: |
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| 4 Channel Amplifier using |
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| 2 pair of RCA inputs. |
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| 7 |
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SPEAKER CONNECTIONS
IMPORTANT! The following speaker connection are for the amplifier in normal mono configuration.
Make the speaker connections using speaker wire that is at least 16 gauge or heavier.
As with any audio component, proper phasing of the amplifier and speakers is essential for strong bass response. When connecting, make sure that positive (+) from the amplifier is connected to the positive (+) of the speaker, and the same for negative
Please note that although the SPA1000D, SPA1300D , SPA1600D and SPA1900D are mono amplifiers, we have provided two sets of speaker terminals on the amplifier. These terminals are connected in paralleled internally (connected together). The second set of speaker terminals are intended for ease of connection when running multiple woofers.
R | L | power | fuses | +12v | rem | gnd |
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| protect |
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speaker | output |
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+-
4 Ohm Speaker (1Ohm minimum)
R | R (+) | L | power | fuses | +12v | rem | gnd |
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| protect |
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| output |
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(-
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4 Ohm Speaker
2 Ohm Speaker (1 Ohm minimum)
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4 Ohm Speaker
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