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Comparison JBL Stage2 624 vs JBL Stage1 621

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JBL Stage2 624
JBL Stage1 621
JBL Stage2 624JBL Stage1 621
from $49.95 
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Application areacarcar
Typecoaxialcoaxial
Size6.5" (16.5 cm)6.5" (16.5 cm)
Number of bands22
Specs
Rated power40 W35 W
Max. power
240 W /Peak/
175 W /Peak/
Frequency range55 – 20000 Hz55 – 20000 Hz
Impedance4 Ohm4 Ohm
Sensitivity91 dB90 dB
Size
Woofer size165 mm165 mm
Mounting depth56 mm56 mm
Added to E-Catalogseptember 2019september 2019

Rated power

Rated power of the acoustic system. Most often, the average (root mean square) sound power is indicated as rated.

The most obvious point related to this characteristic is the volume of sound: the more powerful the sound system, the louder the sound it can produce, all other things being equal. In addition, compatibility with an external amplifier depends on this indicator: its power should not exceed the power of the sound system, otherwise overloads and damage to the speakers are possible.

Max. power

The maximum power of a short-term (up to several seconds) incoming signal that the speaker can withstand without physical damage. Just like the nominal power, it matters for the selection of acoustics for an amplifier (or vice versa): it is believed that the maximum power of the speakers should be at least 2 times higher than the maximum power of the signal source.

Sensitivity

This parameter determines the volume of the sound of a particular speaker when a certain standard signal is fed to it. Typically, this is considered a 1 W signal with a frequency of 1000 Hz. The higher the sensitivity, the less the speaker is demanding on the power of the amplifier. So, it is believed that for acoustics connected directly to the car radio, the sensitivity should be 80 dB or more; for less sensitive systems it is recommended to use a separate amplifier.
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JBL Stage1 621 often compared