mhuck123 Posted May 20, 2009 Report Share Posted May 20, 2009 I have a clipping question I hope someone can help me with. I don't have an O scope YET.......but I replaced my 2 Xtant 1001d's with 1 Zapco 9.0 that has a clipping and "pre clipping" sensor. My question is has anyone used this and checked it with an O scope to see if it is accurate? Both my Zapco 4.0 and 9.0 have it and I set the amps to not clip at all. It's already much louder and I am happy but I want to make sure I am not doing any more damage (Like a dork before I found this website I had gains up, bass up everything up up up!) Thanks!! Quote Starting From Scratch!! Link to comment Share on other sites More sharing options...
dwz Posted May 20, 2009 Report Share Posted May 20, 2009 (edited) If the voice coils both read the proper ohms when measured with a multimeter, and you don't see any signs of exerting its physical limits (holes in the cone, cones ripped from the suspension, etc), then the subwoofer/s is/are fine. But I recommend using the chart below and making sure the AC Volts (when measured at the speaker terminals on the amp) never exceed the numbers on the chart (aka never exceeding RMS power) Oh and turn off Bass Boost, and turn off loudness on your headunit. You can pound your subs as much as you want as long as you're not sending a clipped signal to them. Just don't exceed the AC voltage for your RMS rating. Edited May 20, 2009 by dwz Quote Link to comment Share on other sites More sharing options...
audiofanaticz Posted May 20, 2009 Report Share Posted May 20, 2009 you can take your multimeter after you have set your gains with a/c voltage, go back and flip it to d/c voltage, if you see any dc voltage you are distorting and or clipping. Quote Link to comment Share on other sites More sharing options...
Stephen Posted May 20, 2009 Report Share Posted May 20, 2009 you can take your multimeter after you have set your gains with a/c voltage, go back and flip it to d/c voltage, if you see any dc voltage you are distorting and or clipping. dont think so, you will just get the "average" of the ac voltage 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...
CR Boom Posted May 20, 2009 Report Share Posted May 20, 2009 Speaking of DC voltage, I have seen 12volt light bulbs put in line, what is the function of this???? Quote 2007 Great Wall So Cool 4-12' RE audio MX's Stetsom 7k2D 6-Batts 3-Mechman 250 amp Rhino's Link to comment Share on other sites More sharing options...
LoudBlazer Posted May 20, 2009 Report Share Posted May 20, 2009 They light up when voltage goes thru them, kinda like an inline fuse so you can see it working. Kinda what I was told Quote 1997 2 Door Blazer Bagged & Body Dropped SBC/TH350 Link to comment Share on other sites More sharing options...
CR Boom Posted May 20, 2009 Report Share Posted May 20, 2009 Used as a voltage limiter??? sorry for the thread jack. But I thought maybe that sucked up some DC voltage.. Quote 2007 Great Wall So Cool 4-12' RE audio MX's Stetsom 7k2D 6-Batts 3-Mechman 250 amp Rhino's Link to comment Share on other sites More sharing options...
audiofanaticz Posted May 20, 2009 Report Share Posted May 20, 2009 dont think so, you will just get the "average" of the ac voltage enlighten me on how you will get the average of ac voltage, when your multimeter is set to dc voltage? A cars electrical system is DC current (direct current), your amplifier takes dc voltage, and turns it into ac voltage (alternating current) which is what powers your speakers. After you properly set your gain using the ac voltage chart and flip your dmm to dc current (which is distortion and or clipping) will tell you. If you have any dc current being displayed that means to turn your gain and or bassboost down. Ive done this for years before having a oscope. Quote Link to comment Share on other sites More sharing options...
Boon Posted May 21, 2009 Report Share Posted May 21, 2009 enlighten me on how you will get the average of ac voltage, when your multimeter is set to dc voltage?A cars electrical system is DC current (direct current), your amplifier takes dc voltage, and turns it into ac voltage (alternating current) which is what powers your speakers. After you properly set your gain using the ac voltage chart and flip your dmm to dc current (which is distortion and or clipping) will tell you. If you have any dc current being displayed that means to turn your gain and or bassboost down. Ive done this for years before having a oscope. Because even an AC wave will have a small DC component to it Quote 10.x volts fo' life! Link to comment Share on other sites More sharing options...
audiofanaticz Posted May 21, 2009 Report Share Posted May 21, 2009 small as in .4 maybe tops unless your clipping bad, and then it will be something like 5.46 for an example, the more clipping bigger the number. Quote Link to comment Share on other sites More sharing options...
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