Quantum Audio QCA4400 - Manual (Page 5)

S
IGNAL 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).
S
PEAKER 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.
8
REMOTE
LEVEL
IN OUT
MIN MAX 20Hz 50Hz 40Hz 130Hz 0dB 18dB
SUBSONIC LPF
BASS
BOOST
www.QuantumAudio.net 2500 Watts Dynamic Power Class D Monoblock Amplifier
QCA2500D
94.7
L R
Optional full range line out connection
to addition addition in the system.
MONO SIGNAL
CONNECTION
L R L R
94.7
SIGNAL CONNECTION:
4 Channel Amplifier using
2 pair of RCA inputs.
www.QuantumAudio.net
FRONT REAR
BASS
BOOST
BASS
BOOST FREQ FREQ LEVEL LEVEL
FULL
X-OVER X-OVER
INPUT
HPF LPF
FULL
HPF LPF
0dB 18dB 0dB 18dB 60Hz 400Hz 60Hz 400Hz MIN MAX MIN MAX
800 Watts Dynamic Power 4 Channel Amplifier
QCA4400
7
SPEAKER OUTPUT
+12V REM GND
POWER
PROTECT
www.QuantumAudio.net 3500 Watts Dynamic Power Class D Monoblock Amplifier
QCA3500D
+ -
4 Ohm Speaker
Ohm minimum)
SPEAKER OUTPUT FUSES +12V REM GND
POWER
PROTECT
www.QuantumAudio.net 4500 Watts Dynamic Power Class D Monoblock Amplifier
QCA4500D
+ -
+ -
4 Ohm Speaker
4 Ohm Speaker
2 Ohm Speaker (2 Ohm minimum)