kentb Posted December 4, 2008 Report Share Posted December 4, 2008 (edited) for example i have an amp that does 2000@1ohm 1000@2ohm will the current pull be the same on both 1 ohm and 2 ohm loads? even if the output power is different? Edited December 4, 2008 by kentb Quote New System 2 10" Fi SSD, Sundown 1500d Build I build and design enclosures(cheap price), PM ME Kicker L7 Navigator(plexiglass, fiberglass, aeroport) Build BTL 18" Escalade(plexiglass, battery tray) Build http://www.kentbaudio.com Old System Link to comment Share on other sites More sharing options...
Stephen Posted December 4, 2008 Report Share Posted December 4, 2008 depends on allot of things. voltage, efficiency, etc. best way to find out is to get a clamp meter Quote you can cook bacon shirtless if you're not a pussy...lol not hatin, but am i wrong here it looks as if the amp is not grounded its hooked directly to the battery. it that the way it should be. DC POWER Link to comment Share on other sites More sharing options...
kentb Posted December 4, 2008 Author Report Share Posted December 4, 2008 depends on allot of things. voltage, efficiency, etc. best way to find out is to get a clamp meter for example voltage is constant. i'm just talking about amps in general. not really specific Quote New System 2 10" Fi SSD, Sundown 1500d Build I build and design enclosures(cheap price), PM ME Kicker L7 Navigator(plexiglass, fiberglass, aeroport) Build BTL 18" Escalade(plexiglass, battery tray) Build http://www.kentbaudio.com Old System Link to comment Share on other sites More sharing options...
FreelandKustomz Posted December 4, 2008 Report Share Posted December 4, 2008 the rule is this, voltage divided by wattage = amperage. less wattage, less amperage draw. Quote Link to comment Share on other sites More sharing options...
kentb Posted December 4, 2008 Author Report Share Posted December 4, 2008 the rule is this, voltage divided by wattage = amperage. less wattage, less amperage draw. forgot about the law, so that means resistance doesn't matter? Quote New System 2 10" Fi SSD, Sundown 1500d Build I build and design enclosures(cheap price), PM ME Kicker L7 Navigator(plexiglass, fiberglass, aeroport) Build BTL 18" Escalade(plexiglass, battery tray) Build http://www.kentbaudio.com Old System Link to comment Share on other sites More sharing options...
jonathancullen89 Posted December 4, 2008 Report Share Posted December 4, 2008 well each amp puts out different power at each ohm, so yes it does matter Quote 1992 cavalier build 1992 blazer s10 kenwood cd hifonics hfi2500d 6 soon to be 12 12" hifonics hfi12d4's shit ton-o-wire Blurred Vision Audio Team SMD feedback/refs. clicky!- Link to comment Share on other sites More sharing options...
HHR Ed Posted December 4, 2008 Report Share Posted December 4, 2008 if your amp does 2000w @ 1 ohm and 1000w @ 2 ohm. It can draw almost twice as much current at 1 ohm as compared to 2 ohms. As a general statement,most amps will draw more current at lower ohm loads. Lower resistance on the output means that more current will flow through the output. Voltage input at your battery source remains constant so more power has to come from raising current draw. Quote Ed Lester ShowtimeSPL Host Showtime Electronics Video MarketingMy old Build Loghttp://www.stevemead...08/#entry511451http://www.youtube.com/showtimespl 5 time dB Drag Finalist Last ride 2007 HHR, current dB 153.5 and bass race 149.4 dB. 153.0 dB on music New Ride, 2008 HHR SS. Build under way. Loudest score ever = 171dB 2009 dB Drag Racing, North American Points Champion Link to comment Share on other sites More sharing options...
Derrick824 Posted December 4, 2008 Report Share Posted December 4, 2008 Yes resistance matters. The efficiency and power output are directly related to resistance. An amp will have less current draw at a higher impedance because it will be putting out less power therefore needing less amperage. Quote Link to comment Share on other sites More sharing options...
infkt Posted December 4, 2008 Report Share Posted December 4, 2008 the rule is this, voltage divided by wattage = amperage. less wattage, less amperage draw. Your mean Watts Divided by Voltage, I did a rough calculation and got this 2000w @ 14.4V Will Draw 138.88A @ 1ohm 1000w @ 14.4V Will Draw 69.4A @ 2 Ohms Quote Link to comment Share on other sites More sharing options...
07sOnAtA sp.ed Posted December 4, 2008 Report Share Posted December 4, 2008 Yes resistance matters. The efficiency and power output are directly related to resistance. An amp will have less current draw at a higher impedance because it will be putting out less power therefore needing less amperage. duhhhh... j/k Quote CURRENTLY UNDER RE-CONSTRUCTION 2008 Hyundai Sonata Team T3 Audio Team Deadly Hertz Team SMD (Street Motivated Devastation) Link to comment Share on other sites More sharing options...
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