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 possibility 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 |
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| BOOST |
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| MIN MAX | 20Hz 50Hz | 40Hz 130Hz | 0dB 18dB |
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| 2500 Watts Dynamic Power |
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| QCA2500DClass D Monoblock Amplifier | ||
L | R | to addition addition in the system. | MONO SIGNAL | ||
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| Optional full range line out connection |
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94.7 | CONNECTION |
| LPF FULL | INPUT |
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BASS | HPF | LPF | BASS | |||
FREQ | LEVEL | LEVEL | FREQ | |||
BOOST | BOOST | |||||
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0dB 18dB | 60Hz 400Hz | MIN MAX | MIN MAX | 60Hz 400Hz | 0dB 18dB | |
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www.QuantumAudio.net |
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| 800 Watts Dynamic Power | |
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| QCA4400 4 Channel Amplifier | ||
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| L R | L R |
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| 94.7 |
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| 4 Channel Amplifier using | |
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| 2 pair of RCA inputs. | |
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 QCA2500D , QCA3500D , QCA4500D 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.
SPEAKER OUTPUT | +12V | REM | GND |
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| POWER |
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| PROTECT |
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www.QuantumAudio.net | 3500 Watts Dynamic Power |
QCA3500DClass D Monoblock Amplifier |
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4 Ohm Speaker Ohm minimum)
SPEAKER OUTPUT | FUSES | +12V | REM | GND |
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QCA4500DClass D Monoblock Amplifier |
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4 Ohm Speaker
2 Ohm Speaker (2 Ohm minimum)
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4 Ohm Speaker
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