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Thread: About how much Watts really? JL 450/4 |
    
Bronze Member Username: Deathshadowbal
Post Number: 22
Registered: May-06
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| Posted on Monday, December 11, 2006 - 08:07 pm: |
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I know JL amps are under-rated. I have a JL 450/4 amp that puts out 150W RMS x2 @ 1.5-4 ohms/11-14.5V on the front channels stereo. how much power is she really putting out do you think? |
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Bronze Member Username: Dj_007
Carlisle,
KY
US
Post Number: 22
Registered: Dec-06
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| Posted on Monday, December 11, 2006 - 09:22 pm: |
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well its really putting out 150watts.. lol.. that true power... its true power wiht a high dampening factor.. thats why those amps seem soo powerfull and soo efficient is the high dampening factor... |
Gold Member Username: Mikechec9
Post Number: 2489
Registered: May-05
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| Posted on Monday, December 11, 2006 - 10:55 pm: |
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I don't have the specs for the 450/1, but here are those for the 500/1 and 300/4 respectively.
You can more or less infer your amp's power from these.
JL Audio 500/1:
Output Power (Resistive) (4 ohms @ 60 Hz to 1% THD+N):
605 watts @ 14 volts;
601 watts @ 12.8 volts;
591 watts @ 10.5 volts
Output Power (Resistive) (2 ohms @ 60 Hz to 1% THD+N):
620 watts @ 14 volts;
604 watts @ 12.8 volts;
598 watts @ 10.5 volts
Output Power (Reactive) (4-ohm IHF Load @ 60 Hz to 1% THD+N):
639 watts
Output Power (Reactive) (2-ohm IHF Load @ 60 Hz to 1% THD+N):
733 watts
JL Audio 300/4
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1%THD+N,
all channels driven into 4 ohms:
97 watts x4 @ 14 volts,
90 watts x 4 @ 12.8 volts
Output Power (resistive) minimum output 20 Hz to 20 kHz @ 1%THD+N,
all channels driven into 2 ohms:
90 watts x 4 @ 14 volts,
88 watts x 4 @ 12.8 volts
Output Power (4-ohm IHF Reactive Load @ 60 Hz to 1% THD+N):
232 watts x 2 |
Gold Member Username: Mikechec9
Post Number: 2490
Registered: May-05
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| Posted on Monday, December 11, 2006 - 11:17 pm: |
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The damping factor is typically directly proportional to the quality/grade of the transistors used. I.e, the greater the DF, the greater the quality of the amp.
It will tell you little else.
As far as so-called "amplifier sq" goes, if the DF is >20, it's considered audibly adequate.
That is, you won't be able to hear a difference. |
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