Ohms!!!

**10erg01** · 05-02-2011, 05:59 AM

I am looking at getting a 6.5 sub form kicker but i have no idea what to get the 4 ohm or the 2 ohm?
What is the differnce between 4 and 2 ohms and what are the advangteges/disadvangtes for them.

**LSX01MUSTANG** · 05-02-2011, 06:55 AM

I'm no audio expert, but usually the 4 ohm subs are used when running in parallel(multiple subs). The lower the resistance(ohms), the easier it is for the amp to "push".

**ORION WS6** · 05-02-2011, 05:01 PM

what system do you have? monsoon or after market. if you have monsoon system you should install 2 ohm 6.5" subs.

**pajeff02** · 05-02-2011, 05:39 PM

Ohms is the measurement standard for resistance to electrical current. Car audio speakers are generally 4 ohm and home audio 8 ohm. BTW, the ohm symbol looks like a horseshow standing on its tips. If you run speaker is series the resistance is doubled -- two 4 ohm speakers in series means that the amp sees a load of 8 ohms. Running them in parallel halves the resistance -- two 4 ohm speakers in parallel means that the amp sees a load of 2 ohms.

The rating of the amp is what will determine the correct speakers. Speakers with too low a resistance will trip the protection circuit. Too high a resistance will result in poor sound quality and cause the amp to work too hard and may also damage it. Here are some diagrams of wiring that will better explain it: http://www.usspeaker.com/speaker%20wiring-1.htm

**KMdef9** · 05-03-2011, 02:55 PM

Originally Posted by pajeff02

Ohms is the measurement standard for resistance to electrical current. Car audio speakers are generally 4 ohm and home audio 8 ohm. BTW, the ohm symbol looks like a horseshow standing on its tips. If you run speaker is series the resistance is doubled -- two 4 ohm speakers in series means that the amp sees a load of 8 ohms. Running them in parallel halves the resistance -- two 4 ohm speakers in parallel means that the amp sees a load of 2 ohms.

The rating of the amp is what will determine the correct speakers. Speakers with too low a resistance will trip the protection circuit. Too high a resistance will result in poor sound quality and cause the amp to work too hard and may also damage it. Here are some diagrams of wiring that will better explain it: http://www.usspeaker.com/speaker%20wiring-1.htm

Nice Jeff!

Ultimately, you want to match the resistance of the amp to the sub. Keeping in mind what Jeff said and those dual coil subs.

As mentioned before, the for 4 ohms is harder to push, but is more responsive. Some people say that makes them a "better" sub. That's why home speakers (8 ohm) perform alot better than any car audio will (b/c they have enough power to drive those 8 ohm speakers).