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APX2120/APX4240/APX1300 17
7. Glossary
Crossover
: A device that limits the range of frequencies sent to a speaker or amplifier.
dB: decibel, a measurement of the relative difference in power or intensity between two
acoustic signals.
Equalizer
: Component that boosts or cuts sound signal frequencies to improve the
quality of the sound.
Gain control
: gain is the amount of amplification (voltage, current or power) of an audio
signal expressed in dB.
Hz
: Abbreviation for Hertz, a unit of frequency equal to one cycle per second.
Octave
: the musical principle of dividing sound frequencies into the eight notes of the
musical scale.
Ohm
: unit of electric resistance
RCA input/output
: port through which sound travels in and out of the system; “RCA”
refers to the type of connector, which was first manufactured by the Radio Corporation
of America.
Slope
: how fast the sound gets quieter rated in dBs. The higher the dB number, the
faster the frequency drops off.
8. Specifications
Note:
The technical data and the design of the equipment may change without
prior notice for the sake of technical improvements.
Model APX4240 APX2120 APX1300
Maximum power output 400W 200W 400W
Continuous rated power
1
60W x 4 60W x 2 300W x 1
Typical power in bridged mode
2
100W x 2 100W x 1 N/A
Typical power in 2-Ohm load
2
90W x 4 90W x 2 400W x 1
IM distortion ≤ 0.1% ≤ 0.1% ≤ 0.1%
S/N (A-weighted) ≥ 85dB ≥ 85dB ≥ 85dB
Floor noise N/A N/A N/A
Channel separation ≥ 60dB ≥ 60dB N/A
Frequency response 20-30Hz full range 20-30Hz full range 20-30Hz full range
Line level input sensitivity 200mV to 5.5 Volts 200mV to 5.5 Volts 200mV to 5.5 Volts
Speaker level input sensitivity 2V to 9 Volts 2V to 9 Volts 2V to 9 Volts
Input impedance 22K Ohm 22K Ohm 22K Ohm
Allowable battery voltage 9.6 to 15.6 Volts 9.6 to 15.6 Volts 9.6 to 15.6 Volts
Size 13"x10 7/8"x2 3/4"10 5/8"x10 7/8"x2 3/4" 13"x107/8"x2 3/4"
1
THD ≤ 0.1%, 10Hz-20kHz, into 4-Ohms, @ 14.4V, all channels driven
2
THD ≤ 0.1%, 10Hz-20kHz, @ 14.4V, all channels driven
AMPSOwnersManual.pmd 2005-12-13, 17:0217