Opinions on a cigarette lighter digital volt meter? And How to wire my subs to 1 ohm?

[jockhater2 10+ year member]

Ok. I am looking for 2 digital volt meters.

I was wondering if cigarette lighter ones are accurate for the front?

Otherwise I will just go with 1 and place it in the back. Are the cheap ones absolute garbage or does it not matter?

Also. I am an idiot. I went to 12volt.com for help with how to wire my subs. THey are sundown z.3 dual 1 ohms.

But when I wire them I either get 4 ohms for the final load or 0.5 ohms.

I want my final ohm load to be 1 ohm.

Click to read more...

 

[av83 10+ year member]

Ok. I am looking for 2 digital volt meters.
I was wondering if cigarette lighter ones are accurate for the front?

Otherwise I will just go with 1 and place it in the back. Are the cheap ones absolute garbage or does it not matter?

Also. I am an idiot. I went to 12volt.com for help with how to wire my subs. THey are sundown z.3 dual 1 ohms.

But when I wire them I either get 4 ohms for the final load or 0.5 ohms.

I want my final ohm load to be 1 ohm.

wire series parallel on a 2 d1's ....it will be a 1 ohm load.

 

[JoiNt- 10+ year member]

i got one of those cig lighter volt readers i wudnt say they are 100% accurate but are pretty close, mine was 5 bucks worth the price

 

[jockhater2 10+ year member]

wire series parallel on a 2 d1's ....it will be a 1 ohm load.

Subwoofer Wiring Diagrams, Two 1 ohm Dual Voice Coil (DVC) Speakers

That's what I did. It's weird. I kept getting a weird ohm load.

 

[jockhater2 10+ year member]

Thank you!

 

[av83 10+ year member]

Subwoofer Wiring Diagrams, Two 1 ohm Dual Voice Coil (DVC) Speakers

That's what I did. It's weird. I kept getting a weird ohm load.

You are using a dmm to measure, i take it? If so, measure all of your vc's independently to see if one is out of whack. Also keep in mind that there are lots of speakers that, although rated at a specific # of ohm's, are often a few 1/10's (sometimes more, sometimes less) off.

 

[jockhater2 10+ year member]

You are using a dmm to measure, i take it? If so, measure all of your vc's independently to see if one is out of whack. Also keep in mind that there are lots of speakers that, although rated at a specific # of ohm's, are often a few 1/10's (sometimes more, sometimes less) off.

Yes. I tried 2 different DMMs. ANd I am aware that ohms is average will never read a precise number. I'll have to look into it.

 

[jockhater2 10+ year member]

for the volt meters. How do they turn off? iF there is only a power and ground? Do you have to hook it up to a toggle switch?

 

[southernboom88 10+ year member]

i have one of the cig lighter meters and they are not 100% but close enough to let you know when ur volts drop too low.. my regular meter read say 14.5 and the cig meter read 14.3 at the same time. worth the 5-10 bucks imo

 

[vaiboy 10+ year member]

Speakers are rated in nominal impedance not DC resistance, DMM's measure DC resistance. If you want to check your wiring measure one coil then measure the final load they should be the same for what you are trying to do.

 

[jockhater2 10+ year member]

ok. I will be sure to do that.

 

[jockhater2 10+ year member]

i have one of the cig lighter meters and they are not 100% but close enough to let you know when ur volts drop too low.. my regular meter read say 14.5 and the cig meter read 14.3 at the same time. worth the 5-10 bucks imo

Makes sense. The cig lighter meters say that they are accurate within + or - 1.2%

 

[srb 10+ year member]

My cigarette light volt meter *****.Completely inaccurate.

 

[West]

Anyone have a link to buy a lighter voltmeter that doesnt blow?

 

[jockhater2 10+ year member]

Anyone have a link to buy a lighter voltmeter that doesnt blow?

I went with the stinger one.

STINGER SGP12 DIGITAL VOLTAGE METER USB CHARGER 12 VOLT PLUG BATTERY MONITOR | eBay

If you want. When I get it. I can let you know how it is.