Glossary, Specifications – Clarion APX2120 User Manual

Page 17

APX2120/APX4240/APX1300

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

60W x 4

60W x 2

300W x 1

Typical power in bridged mode

100W x 2

100W x 1

N/A

Typical power in 2-Ohm load

90W x 4

90W x 2

400W x 1

IM distortion

≤ 0.1%

S/N (A-weighted)

≥ 85dB

Floor noise

N/A

Channel separation

≥ 60dB

N/A

Frequency response

20-30Hz 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

13"x10 7/8"x2 3/4" 10 5/8"x10 7/8"x2 3/4" 13"x107/8"x2 3/4"

THD

≤ 0.1%, 10Hz-20kHz, into 4-Ohms, @ 14.4V, all channels driven

THD

≤ 0.1%, 10Hz-20kHz, @ 14.4V, all channels driven

AMPSOwnersManual.pmd

2005-12-13, 17:02