Nick_L Posted September 16, 2008 Report Share Posted September 16, 2008 I was just curious about something and thought I would post it here and see if anyone could explain it to me, I was just curious why if say I have a sub that can take 2000w and an amp putting out at least that, why do I put 1/0 gauge wire to the batt and amp but like 8 gauge to the sub? How is my 2k watts getting to the sub through such small wire? Just curious Quote Link to comment Share on other sites More sharing options...
wL<3bass Posted September 16, 2008 Report Share Posted September 16, 2008 I was just curious about something and thought I would post it here and see if anyone could explain it to me, I was just curious why if say I have a sub that can take 2000w and an amp putting out at least that, why do I put 1/0 gauge wire to the batt and amp but like 8 gauge to the sub? How is my 2k watts getting to the sub through such small wire? Just curious Voltage, current, and length of wire all play rolls. Quote Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
Nick_L Posted September 16, 2008 Author Report Share Posted September 16, 2008 I figured as much... Just wasn't positive Quote Link to comment Share on other sites More sharing options...
Guest Posted September 16, 2008 Report Share Posted September 16, 2008 power inputs on the amp have to sustain minor voltage (12-15v) and a hell of alot of amps (current). but the speaker wire only has to carry higher voltages and not so much current. Quote Link to comment Share on other sites More sharing options...
chill phil Posted September 16, 2008 Report Share Posted September 16, 2008 The power wire is on dc voltage, while the speaker wire is on ac voltage. Ac voltage can use a smaller wires at same voltage of power wire Quote 2007 Nissan Xterra SE Amp: Sub: Box: Electrical: TL Scores: Link to comment Share on other sites More sharing options...
Clif Posted September 16, 2008 Report Share Posted September 16, 2008 The power wire is on dc voltage, while the speaker wire is on ac voltage. Ac voltage can use a smaller wires at same voltage of power wire Don't think that is true. Its all about the input voltage being around 13 so to get 2 kwatts you going to be 150 plus amps. Now on the output side of your amp it is ac and also a higher voltage around 63v(if running at 2 ohms) so you only have 31 amps of current going through your wire. Also you have a much longer distance from your bat to your amp then your amp to your sub. The wire has a resistance through it naturally so if you have a long run and need allot of current your going to have a big power lead. Cliff Quote 03 Trailblazer EXT LT In Dash Rear Flip Down Polk Audio Font & Rear Stage Hifonics Zeus 4 Chan Amp Hifonics Brutus Mono Amp 12" Rockford Fosgate Power HX2 T-Line tuned to 45hz 18"BTL T-line @31Hz (9 weeks pregnant) Link to comment Share on other sites More sharing options...
jonathancullen89 Posted September 16, 2008 Report Share Posted September 16, 2008 that would be crazy to see a sub that has 0guage inputs lol 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...
newls1 Posted September 16, 2008 Report Share Posted September 16, 2008 that would be crazy to see a sub that has 0guage inputs lol Crazy....YES! but would look damn neat! Quote I love my staffie So anti FACEBOOK it isn't even funny Link to comment Share on other sites More sharing options...
S1R-BLUNTZWORTH Posted September 17, 2008 Report Share Posted September 17, 2008 I was just curious about something and thought I would post it here and see if anyone could explain it to me, I was just curious why if say I have a sub that can take 2000w and an amp putting out at least that, why do I put 1/0 gauge wire to the batt and amp but like 8 gauge to the sub? How is my 2k watts getting to the sub through such small wire? Just curious High voltage can pass through thin gauge wires. High amperage cannot. think about this: have you ever seen the tiny gauge you're house electrical outlets are? they're pretty thin, but still are able to carry a total output of roughly 1500-2000 watts. That's because @ 120volts, it only requires 15amps to equal 1800watts. When using only 12volts, it takes 150amps to produce 1800 watts. as you may already know, volts x amps = power(watts) Quote Amps - 2x t1500-1bd Subs - 2x hdc315's(copper d2's) Deck - 1940's Amplitude Modulation radio Link to comment Share on other sites More sharing options...
wL<3bass Posted September 17, 2008 Report Share Posted September 17, 2008 High voltage can pass through thin gauge wires. High amperage cannot. think about this: have you ever seen the tiny gauge you're house electrical outlets are? they're pretty thin, but still are able to carry a total output of roughly 1500-2000 watts. That's because @ 120volts, it only requires 15amps to equal 1800watts. When using only 12volts, it takes 150amps to produce 1800 watts. as you may already know, volts x amps = power(watts) ZING! Quote Vehicle: 1997 S10 Blazer 4dr 4X4 Exterior: Rear End Bagged, Black Grill, Lifted 2" Amplifiers: Rockford Fosgate T8004 & T10001bd Batteries: 2 Stinger SPV35, Kinetik HC2400 Electrical: Big 3, DC Power 290amp Alternator w/ MLA at 15.5v Enclosure: 4.2 ft³ @ 33Hz 84sq.in. of port (20sq.in. per cube) Headunit: Eclipse CD3200 w/ 80G iPod Mids/Highs: Rockford T152s (a-pillars), Rockford T162s (doors) Subwoofers: 1 15" Fi BL Fully Loaded Wire: All 1/0g Kicker Hyperflex My YouTube Videos My Fiberglass A-Pillar Build My "Seamless" Looking Box Build My DD1508 T-Line Bandpass Build "Seamless" w/ Acrylic Windows (for '05 TrailBlazer) My Stealth 8" Fiberglass Build (for '05 TrailBlazer) My Build For A Friend's '08 Cobalt 15" BL Sealed Off From The Trunk My feedback/references... Link to comment Share on other sites More sharing options...
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