JR Yonts Posted November 24, 2016 Report Posted November 24, 2016 Do you guys think I would have any problems running 3 x-12's dual 4ohm coils on the SCV3000D. I have a mechman 270 amp Alt. Quote
RooTxBeeR Posted November 24, 2016 Report Posted November 24, 2016 Only problem is, is that you would be starving them for power. 3 dual 4 ohm subs can only be wired to 2.67 and 6 ohms. You will barely have enough power for 1 sub let alone 3. An scv3k runs 1500 at 2 ohms and you would be just over that, then throw some rise in there and yeah. Somewhere between 1k-1.5k give or take. I was going to be running a very similar setup, 3 x 12's with a same sized alt and 4 xs power xp3k's. Debating on Dual 1 ohms to wire to .67 or Dual 2's to run at 1.34. I think thinking of staying on the safe side since to power them suffieciently I don't think a 280a alt can do 4k-6k watts at below 1 ohm. So I am in the search of an amp or amps to get me at least 5k near 2 ohm. Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5
Chance_P Posted November 24, 2016 Report Posted November 24, 2016 Only problem is, is that you would be starving them for power. 3 dual 4 ohm subs can only be wired to 2.67 and 6 ohms. You will barely have enough power for 1 sub let alone 3. An scv3k runs 1500 at 2 ohms and you would be just over that, then throw some rise in there and yeah. Somewhere between 1k-1.5k give or take. I was going to be running a very similar setup, 3 x 12's with a same sized alt and 4 xs power xp3k's. Debating on Dual 1 ohms to wire to .67 or Dual 2's to run at 1.34. I think thinking of staying on the safe side since to power them suffieciently I don't think a 280a alt can do 4k-6k watts at below 1 ohm. So I am in the search of an amp or amps to get me at least 5k near 2 ohm. And .67 ohms. You forgot to math before you spoke. Quote
RooTxBeeR Posted November 24, 2016 Report Posted November 24, 2016 (edited) Only problem is, is that you would be starving them for power. 3 dual 4 ohm subs can only be wired to 2.67 and 6 ohms. You will barely have enough power for 1 sub let alone 3. An scv3k runs 1500 at 2 ohms and you would be just over that, then throw some rise in there and yeah. Somewhere between 1k-1.5k give or take. I was going to be running a very similar setup, 3 x 12's with a same sized alt and 4 xs power xp3k's. Debating on Dual 1 ohms to wire to .67 or Dual 2's to run at 1.34. I think thinking of staying on the safe side since to power them suffieciently I don't think a 280a alt can do 4k-6k watts at below 1 ohm. So I am in the search of an amp or amps to get me at least 5k near 2 ohm. And .67 ohms. You forgot to math before you spoke. Isn't series/parallel the way to get the lowest with dual 4's? Which would be 2.67. I didn't do math, used a website, cry more or be butthurt somewhere else. Edited November 24, 2016 by RooTxBeeR Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5
JR Yonts Posted November 24, 2016 Author Report Posted November 24, 2016 No, 3 dual 4 ohm voice coils in parallel would be .66 ohm Quote
notorious97200 Posted November 24, 2016 Report Posted November 24, 2016 (edited) No cry, no butthurt here ! Do it OP, if you have enough battery power. You have a good alt, you may need 2 big AGM : one upfront and one in the back, at least. (That is the amplifier I want to run on my Zcon 15.) Edited November 24, 2016 by notorious97200 Quote black BMW X1 2.0 l 192 hp OEM head unit, Amplifiers : Audison AP 8.9 with integrated DSP and Ampere Audio 1200. Focal ES 100 K in front doors, and Dayton RS 180 for midbass under the front seats. 2 SSA DEMONS 10" subs, in a sealed box. SecondSkin Damplifier on front doors, and Luxury Liner Pro for the cargo area.
JR Yonts Posted November 24, 2016 Author Report Posted November 24, 2016 No cry, no butthurt here ! Do it OP, if you have enough battery power. You have a good alt, you may need 2 big AGM : one upfront and one in the back, at least. (That is the amplifier I want to run on my Zcon 15.) Ive already got a XS power battery and have the Big 4 with 1/0 wire, so I think it can take it. Quote
RooTxBeeR Posted November 24, 2016 Report Posted November 24, 2016 No cry, no butthurt here ! Do it OP, if you have enough battery power. You have a good alt, you may need 2 big AGM : one upfront and one in the back, at least. (That is the amplifier I want to run on my Zcon 15.) Ive already got a XS power battery and have the Big 4 with 1/0 wire, so I think it can take it. You should have no problem then running that. Those subs will be begging for more though. How did everyone figure out that .66. I have only ever used 12volt and could never find anything I would understand for formulas to figure out how to do what ever configuration I wanted. Quote On 11/20/2012 at 8:54 PM, AMI CUSTOMS said: Turned mine up today at a light, guy next to me his steering wheel started moving and he looked over at me like I was a magician lol. On 5/9/2012 at 8:45 PM, skittlesRgood said: fuck the plating. look at what the main metal used is. you could buy unicorn blood plated terminals but if its just covering up dog shit, whats the point On 4/10/2013 at 12:26 PM, mrd6 said: I'll admit, half way through sanding that fiberglass in the rain and cold while I was all itchy I was definitely starting to question why i was doing this haha Soon To Be '04 Ford Escape US Alternator 280A Hairpin D4800 Under the Hood (6) XP3000's in Rear 1/0 SHCA & XS Power 4 runs to back TORK2 kit from Tony @ CE Auto Supply Pioneer DEH-80PRS DD AW6.5 (2) per door *Tweeter Unkown* DD SS4a & C3d (2) SCV4000 @ .5Ohm (2) 15" Sundown Zv5
reedal Posted November 24, 2016 Report Posted November 24, 2016 .66 is parallel coils and subs. a full parallel circuit, not series parallel. You add the reciprocal of each voice coil (1 divided by 4) and then get the reciprocal of the sum. so: y equals the voice coil resistance, and x is the sum. you have y, so you need to solve for x, and then find the reciprocal of the sum 1/ [x = (1/y + 1/y + 1/y+ 1/y + 1/y+ 1/y)] is equal to 1/ [x = (1.5)] so the reciprocal (1/x) of 1.5 is .66. That's how you find parallel resistance of a circuit. now the short easy way for subwoofers since it is assumed that all voice coils of a subwoofer are equal: you have 3 subwoofers with two coils each, that are four ohm. SO, 2x3=6 coils. 4ohms divided by 6 coils equals .66ohm Quote SMD Tool Map https://www.stevemeadedesigns.com/board/topic/193176-smd-tool-map-new-november-2014/ Build log https://www.stevemeadedesigns.com/board/topic/197217-reeds-03-tahoe-hat-sqaq-singer-xs-shca-cockbox-80prs/?page=32
JR Yonts Posted November 24, 2016 Author Report Posted November 24, 2016 No cry, no butthurt here ! Do it OP, if you have enough battery power. You have a good alt, you may need 2 big AGM : one upfront and one in the back, at least. (That is the amplifier I want to run on my Zcon 15.) Ive already got a XS power battery and have the Big 4 with 1/0 wire, so I think it can take it. You should have no problem then running that. Those subs will be begging for more though. How did everyone figure out that .66. I have only ever used 12volt and could never find anything I would understand for formulas to figure out how to do what ever configuration I wanted. I use these websites........... http://www.bcae1.com/spkrmlti.htm http://www.speakerimpedance.co.uk/?page=calculator Quote
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