QuestionI dont understand the whole Ohms deal... i have an amplifier that will produce 600RMS @ 4 OHMS and 1000RMS @ 2OHMS... how can i tell if its running at 2 or 4 ohms??.. and how how can i make it run at 2 ohms????.. another question.. i have 15" subwoofers that have a dual 4 ohm voice coil , is there any way i can get the subwoofer to run at 2 ohms for more power??
AnswerHi PJ,
Ohms are a measurement of the amount of electrical resistance that the cables and circuitry of any electric signal carrying audio gear (or any electronics for that matter) produces. The lower the number, the more resistance, and the more overall power (watts) that the gear can support and is required.
You can't tell what an amp is running, since it switches automatically. It is dictated by the speakers you hook up. You need to check the rating on those, and if they're 8 ohms rated (most common) then that's what your amp will be powered at, if they're 4 ohms, it will be more wattage, etc.
If you have subwoofers that are 4 ohms, then that's what the amp will run them at, 600 watts RMS, probably around 1000 watts peak. You cannot "switch" or "change" the resistance: it is dictated by the design of the subwoofer itself.
You're also working under a misconception - just because something is rated as requiring less ohms, which means your amp can use less power to run it. It will not give you "more power". The amp simply runs at whatever wattage is necessary to drive the speakers or woofers, and changing them will make no difference. If you want louder, all you can do is buy a more powerful amp, and make sure your speakers and woofer can handle that power without blowing out. Good luck! Cheers, Wink
