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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.
APX4241E
Maximum power output
400W
Continuous rated power *
60W x 4
Typical power in bridged mode **
100W x 2
Typical power in 2-Ohm load **
80W x 4
IM
distortion
< 0.1%
S/N (A-weighted)
> 75dB
Floor noise
A / N
Channel separation
> 60dB
Frequency response
20Hz-20kHz full range
Line level input sensitivity
200mV to 5.5 Volts
Speaker level input sensitivity
2V to 9 Volts
Input impedance
22K Ohm
Allowable battery voltage
9.6 to 15.6 Volts
Size (L × W × H) in mm
300 × 280 × 55
* THD < 0.1%, 10Hz-20kHz, into 4-Ohms, @ 14.4V, all channels driven
** THD < 0.1%, 10Hz-20kHz, @ 14.4V, all channels driven
Summary of Contents for APX1301E
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