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
