CANADIAN SPL LEAGUE
^ that rarely happens in my experience... you could fry an amp 10x over before a fuse will pop... MTA another other good example of what they are there for... (note that he even points out its a dead short when it happens)
Anyway... As far as the current/voltage situation... what you need to consider is that if an amp pulled more current with less voltage it would be in violation of ohms law.... are you guys familar with ohms law ???
Test it if you want.. you will need a DMM and a clamp meter...
[img]graemlins/beer.gif[/img]
[ January 13, 2005, 03:03 PM: Message edited by: Haunz ]
Anyway... As far as the current/voltage situation... what you need to consider is that if an amp pulled more current with less voltage it would be in violation of ohms law.... are you guys familar with ohms law ???
Test it if you want.. you will need a DMM and a clamp meter...
[img]graemlins/beer.gif[/img]
[ January 13, 2005, 03:03 PM: Message edited by: Haunz ]
500 Watt CAFz'r
Joined: Mar 2004
Posts: 819
My friend was running a Mojo 2000D on an 80 amp fuse and he blew 10 80 amp AGU fuses before upgrading to an ANL. The ANL is 150 amp and never blows.
The point is that if you were running say 6000 RMS on an 80 amp fuse for 30 seconds, the fuse would break and that is the point.
The point is that if you were running say 6000 RMS on an 80 amp fuse for 30 seconds, the fuse would break and that is the point.
Originally posted by Haunz:
</font><blockquote>quote:</font><hr />Originally posted by MTA:
the other thing is that if you put a larger amplifier than your electrical system can supply the fuses will blow sooner than expected... this is because an amplifiers out put consists of voltage and current... when voltage is limited it draws more current to try and compensate... one reason why unfused amplifiers blow up when lack of power is present...also a reason why unregulated amplifiers produce more power when you run higher voltage into them say 16 volts instead of 12.6v
</font><blockquote>quote:</font><hr />Originally posted by MTA:
the other thing is that if you put a larger amplifier than your electrical system can supply the fuses will blow sooner than expected... this is because an amplifiers out put consists of voltage and current... when voltage is limited it draws more current to try and compensate... one reason why unfused amplifiers blow up when lack of power is present...also a reason why unregulated amplifiers produce more power when you run higher voltage into them say 16 volts instead of 12.6v
amp fuses are intended to blow when shorted.... they are there to protect the amp against catostrofic failure after you cook outputs, burn a trace.... ect.. A final fail safe after the amps protection circuitry so you cant set your car on fire to boot... </font>[/QUOTE]Ill partially agree... the amps fuses will also blow when reversed polarity , as MOST have shunt or reverse polarity diodes across the power inputs with the fuses in series in the positive power input... if reversed the diodes will shunt all the power across them and blow the fuses because of their extremely low resistance in order to protect the circuitry and output stage of the amplifier that is directly connected to the input power rail
but the power supply of the amp will try to draw more current when voltage does drop
--SPECIAL ED--
Joined: Jan 2005
Posts: 98
someone think of an amp regulatory rule for a newb class. we have came up with a suggested power limit of 1200 watts rms at the lowest rated ohm load for the 80amp class. But this needs to be more specific, as in number of amps allowed in total or number of amps allowed per sub.
How does "No more than 4 (or 2) channels of amplification per subwoofer" sound?
opinions?
[ January 14, 2005, 10:58 AM: Message edited by: Vladi ]
How does "No more than 4 (or 2) channels of amplification per subwoofer" sound?
opinions?
[ January 14, 2005, 10:58 AM: Message edited by: Vladi ]
