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16 XR2220/XR2420/XR2120
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.
XR2420
Maximum power output
Continuous rated power *
Typical power in bridged mode **
Typical power in 2 Ohm load **
IM distortion
S/N (A-weighted)
Channel separation
Frequency response
Line level input sensitivity
Speaker level input sensitivity
Input impedance
Allowable battery voltage
Size (W x L x H)
480W
60W x 4
180W x 2
90W x 4
0.1%
80dB
60dB
20Hz-30kHz full range
200mV to 5.5 Volts
400mV to 11 Volts
22kOhm
9.6 to 15.6 Volts
14” (354mm) x 8-1/2” (217mm) x 2-3/16”
(55mm)
* THD - 1%, 20Hz-20kHz, into 4 Ohms, @14.4V, all channels driven
** THD -1%, 20Hz-20kHz, @14.4V, all channels driven
16


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