Why are there 3 different ohm options? What differs between them?
1748384
I have the 250 ohms as I drive them with a headphone amplifierso in short it depends what you plug them into ie Iphone which doesn`t have enough power to drivethe 250 ohms.For example "The 32 ohm model is a good option for those who wish to use this headphone while they are mobile or paired with devices such as laptops, iPods, MP3 players, tablets, etc"
1748385
the 32ohm version is made to be run off just about anything, and still retain good volume and dynamics. the 80ohm is tuned for a bit more bass than the other models. at 80ohm it sits on the border of needing or not needing an amp. I personally thought it needed one when I listened to it out of my phone. the 250ohm definitely needs an amp, and is the most balanced sounding of the 3 versions. it's far from a balanced headphone though. I only say balanced in comparison to the other ohm versions of the same headphone. the 250ohm version is really made for a studio plugged into monitoring equipment. doesn't mean you cant use it at home, but you have to have an amp. just remember this with headphones, the lower the ohm, the more likely it will sound good just plugged right into a source. as the ohm goes up, volume and dynamics start to suffer, to the point that a separate amp will be required. if you don't want to use an amp, get the 32ohm.
343991
This is a dual coil sub so I'm assuming it is 2 ohms if you run the two coils in parallel and 8 ohms each side. This doesn't quite work out, you're right, as it should be two 4 ohm coils (which is how I see it described on sites that sell it) that in parallel is 2 ohms or in series is 8 ohms. I built my own box to the sealed box specs (remarkably small) and am driving it in stereo (though my head unit has a dedicated sub setting for outputs which may sum to mono on its own) with a 1000watt stereo amp and I assumed it was 4ohm per side. It sounds amazing in my little car, as a matter of a fact it took me forever to get the sub balanced with the rest of the system because it is amazingly efficient so I kept turning down the sub out as well as the amp trim and finally settled on running it with a 150hz cutoff instead of 75hz. Hope this helps.
652835
They're both 50 ohm, so either will work, use the better (low loss) one of you have to make a long run. It's a trade-off in flexibility, loss, and cost.
2096165
dual 2 ohm and you can always download or go on Rockford fosgate website and can get a wiring diagram for x amount of subs and ohm load and it will tell you final ohm load
2254985
Crutchfield sells this amp, I suggest looking at their site, because there are a couple of ways to set it up and get different ohm out puts.
1949923
Just for you...I turned y meter on this morning and stuck the leads into some water in a cup. It has a floating decimal that was reading 1.023 OHMS when I done this. I am an older guy here in late 50's. I will be honest and tell you I never heard of "sub ohms". Explain a little for me?
1176609
It does not matter, general rule of thumb, is the lower the OHM number on the speakers, the more efficient they will be. In other words, the lower OHM number on the speaker would require less watt output from the receiver. Your receiver can output any OHM number, and the same is true for the speakers.
1516163
You loose power by going with the 8 ohm. The lower the resistance, the higher wattage output you get. If you went with a dual voice coil 8 ohm and wired it in parallel (pos to pos) this would get it to 4 ohms.
625154
The15 or 20 amp option is in reference to the plug layout. A 20 amp plug is different from a 15 amp plug.
2236303
Could be a bunch of different reasons; differnt wattage, different style, different housings all together
205090
I always you the secondary lead for actuating the solenoid. You can use either side. Therefore I never had a need to know the ohm rating, sorry
2054903
8 Ohms -- http://www.bicamerica.com/showpage.php?brand=2&type;=11&spkrID;=36
1496260
It means that you should use 8 ohm speakers for best quality. These are the usual you'll find.4 ohm speakers are available but normally used in a car.Speakers over 8 ohms are not usually available.
1301545
They are 8 ohm. Also, if you need additional specs, just scroll down to the product description and it gives you everything you might need to know. We have been very happy with these......really good sound.
756507
The last 3 answers are the best as it depends on a lot of things, preamp, crossover, power capabilities etc There are lots of other choices out there!
531205
One has dual 4ohm voice coils so you can make an 8 ohm or 2 ohm load the other has dual 2 ohm voice coils so you can make a 4 ohm or 1 ohm load
1806244
many variables, watts, wire size, etc. General rule, shorter runs less voltage drop. shorter is better.