Stephen13 Posted August 30, 2015 Report Posted August 30, 2015 Don't know if this has been brought up here before so my apologies if it has. Here's how to use a calculator to determine impedance of parallel conneted voice coils. You'll need a scientific calculator to do this. What you'll be using is the 1/x (one over x) function. Let's say you want to connect two 8Ω voice coils in parallel. You would enter the figures like this... 8 1/x (usually done by pressing the 2nd function button first and then the 1/x button) + 8 1/x = 1/x When you're done your calculator should display 4 If you wanted to know the impedance of three 8Ω voice coils in parallel... 8 1/x + 8 1/x + 8 1/x = 1/x Your display should now say 2.6666666667 Hope you find this useful. 2011 Chevy Silverado LT 5.3L 4x4 Ext.-cab "Enjoy yourself. It's later than you think."
Skullz Posted August 30, 2015 Report Posted August 30, 2015 You could use this. http://www.the12volt.com/caraudio/boxcalcs.asp 01 Ford focus ZX3 Pioneer AVH-X491BHS PPI PC 4800.2 Morel Maximo 6.5" x2
Stephen13 Posted August 30, 2015 Author Report Posted August 30, 2015 True, but a calculator doesn't need an internet connection. 2011 Chevy Silverado LT 5.3L 4x4 Ext.-cab "Enjoy yourself. It's later than you think."
biscuitownz Posted September 8, 2015 Report Posted September 8, 2015 You don't really need a 'scientific' calculator to calculate parallel loads. For the same impedance you can just do (ohms) / (total number in parallel) Ex: 3 8ohm speakers = 8/3 = 2.66
afrakes Posted September 8, 2015 Report Posted September 8, 2015 You don't really need a 'scientific' calculator to calculate parallel loads. For the same impedance you can just do (ohms) / (total number in parallel) Ex: 3 8ohm speakers = 8/3 = 2.66 And if they are dvc just double the total number in parallel. So: 3 dvc 8 ohm woofers, in parallel, 8/6=1.33 Vehicle: 2014 GMC Sierra 2500HD WT Head Unit: Pioneer DEH- Mids/Highs: Focal Integration ISC 165’s (front) Subs/Amps: TBD
STEvil Posted September 8, 2015 Report Posted September 8, 2015 what about 16 1.3 ohm coils? MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed.
Broke_Audio_Addict Posted September 8, 2015 Report Posted September 8, 2015 0.08125 That being said a lot of people's definition of "music" is a clipped 30 hz sine wave with some 80 IQ knuckle head grunting about committing crimes and his genitals.
Stephen13 Posted September 8, 2015 Author Report Posted September 8, 2015 You don't really need a 'scientific' calculator to calculate parallel loads. For the same impedance you can just do (ohms) / (total number in parallel) Ex: 3 8ohm speakers = 8/3 = 2.66 Good point. My procedure works for speakers but I mainly use it while breadboarding circuits and have to parallel different value resistors to get a specific value that I don't have a resistor for. 2011 Chevy Silverado LT 5.3L 4x4 Ext.-cab "Enjoy yourself. It's later than you think."
reedal Posted September 8, 2015 Report Posted September 8, 2015 ^^ same here. In my world, nothing has the same resistance. So you have to calculate it with the formula, not just a simple division. 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
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