77-AUDIO Posted December 22, 2009 Report Share Posted December 22, 2009 Theres a member that has the sheet linked on the bottom of their signature and was wondering who it was so I can find it, and also it looks like nfsplayer needs it as well. PPI dbl dinDC Level 31.77cubes net tuned to 33htz.DC audio 2.0kCT Pro Audio 8" in front, 6.5 in rear Link to comment Share on other sites More sharing options...
kl0wn Posted December 22, 2009 Report Share Posted December 22, 2009 I know what sheet you are talking about, but idk where it is. You can easily figure it out yourself though, just follow this. Let's say you want to get 500rms out. You get the square root of 500 which is 22.36. So if you have the amp wired @ 1 ohm, you'll want 22.36. If you have the amp wired @ 2 ohm, just take 22.36 and multiply it by 2, which will be 44.72. So on and so on. 06 Mini Cooper S Sundown, SoundQubed Cadence, XS Power 151s Sealed 155s Outlaw Windshield @ 37hz Link to comment Share on other sites More sharing options...
77-AUDIO Posted December 22, 2009 Author Report Share Posted December 22, 2009 I know what sheet you are talking about, but idk where it is. You can easily figure it out yourself though, just follow this.Let's say you want to get 500rms out. You get the square root of 500 which is 22.36. So if you have the amp wired @ 1 ohm, you'll want 22.36. If you have the amp wired @ 2 ohm, just take 22.36 and multiply it by 2, which will be 44.72. So on and so on. Let me get this straight. If I want 1500 rms out at 1 ohm, the dmm will read 38.73ish. And do I leave the sub connected or what??? PPI dbl dinDC Level 31.77cubes net tuned to 33htz.DC audio 2.0kCT Pro Audio 8" in front, 6.5 in rear Link to comment Share on other sites More sharing options...
kl0wn Posted December 22, 2009 Report Share Posted December 22, 2009 Let me get this straight. If I want 1500 rms out at 1 ohm, the dmm will read 38.73ish. And do I leave the sub connected or what??? Disconnect your sub, turn all the gains on your H/U to 0 or off. Play a 50hz sine wave. If you want 1,500RMS, you will want the DMM to read out 38.72/73 EDIT: Turn the volume 3/4 the way up too 06 Mini Cooper S Sundown, SoundQubed Cadence, XS Power 151s Sealed 155s Outlaw Windshield @ 37hz Link to comment Share on other sites More sharing options...
Decaf Posted December 22, 2009 Report Share Posted December 22, 2009 using a -3db or -5db test tone @40-60hz: take the square root of the RMS u want then multiply it by ur DCR or (ohm load when not moving) example: 1200w @ 0.8ohms 1200sqrt = 34.6v 34.6v * .8ohms = 27.7v remember the lower the resistance (ohms) the lower the voltage you need Link to comment Share on other sites More sharing options...
Guest Posted December 22, 2009 Report Share Posted December 22, 2009 i win Link to comment Share on other sites More sharing options...
Decaf Posted December 22, 2009 Report Share Posted December 22, 2009 well sort of knowing the math is nice too tho if u want a number not on the chart Link to comment Share on other sites More sharing options...
77-AUDIO Posted December 22, 2009 Author Report Share Posted December 22, 2009 Well the SAZ-1500 at 14.6 volt put out more than 2k so how do I measure that. what do I need. And thanks Klown, Decaf and Kranny. If the amp is 1500x1 at 1ohm at 12.8v, so it should be closer to 1700x1 at 1 ohm at 14.6v! And thats if its not under rates and exactly 1500x1 at 1 ohm at 12.8v. PPI dbl dinDC Level 31.77cubes net tuned to 33htz.DC audio 2.0kCT Pro Audio 8" in front, 6.5 in rear Link to comment Share on other sites More sharing options...
77-AUDIO Posted December 22, 2009 Author Report Share Posted December 22, 2009 I saw a video and the guy used resistors to simulate a 4 ohm load as if the speakers were connected and metered at the amp. So I am getting conflicting information. Speakers connected and set OR Speakers disconnected and set PPI dbl dinDC Level 31.77cubes net tuned to 33htz.DC audio 2.0kCT Pro Audio 8" in front, 6.5 in rear Link to comment Share on other sites More sharing options...
Torres Posted December 22, 2009 Report Share Posted December 22, 2009 speakers disconnected and set. and dont forget to put all the setting (bass, subwoofer lvl...etc) at zero as well. Link to comment Share on other sites More sharing options...
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