So what is the advantage if any these 3ohm subwoofers have over...
#1
11-18-20, 12:43 PM
So what is the advantage if any these 3ohm subwoofers have over...
So what is the advantage if any these 3ohm subwoofers have over smaller 8ohm ones my receivers won't blow up? 
#2
11-18-20, 01:01 PM
Group Moderator
A basic explanation.....
As the resistance goes down..... the load increases.
Consider 0 ohms is a dead short. 3 ohms is much closer to 0 ohms than 8 ohms.
That means the closer your speakers are to 0 ohms.... the more load they present to the receiver and the harder and hotter the amplifier needs to work.
As the resistance goes down..... the load increases.
Consider 0 ohms is a dead short. 3 ohms is much closer to 0 ohms than 8 ohms.
That means the closer your speakers are to 0 ohms.... the more load they present to the receiver and the harder and hotter the amplifier needs to work.
#3
11-18-20, 02:36 PM
Originally Posted by juntoo
what is the advantage if any these 3ohm subwoofers have over smaller 8ohm ones
Fewer Ohms means less voltage is needed to make them work.
The trade off is that they will suck higher current.
#4
11-19-20, 05:57 PM
I also read in order to accommodate low ohm speakers you need usually a higher end receiver, so... are people spending more money to use lower ohm speakers for some reason?
#5
11-20-20, 05:45 AM
I have not been able to figure out or to find (on Google) any advantages ot significant disadvsantagers of lower impedace speaker over higher impedance speakers.
There is a slight disadvantage to low impedande speakers, the need for heavier speaker wires to combat voltage drop.
There is a slight disadvantage to low impedande speakers, the need for heavier speaker wires to combat voltage drop.
#6
11-20-20, 05:59 AM
Group Moderator
I think in your situation where from your other thread you are cranking the volume loud and blowing speakers. You might want to start focusing on the speakers efficiency and not so much on ohms. Unfortunately efficiency is only listed with new speakers in their specs. If you are shopping second hand then ohms and watts are the only specs printed on most speakers.
juntjoo
voted this post useful.
#7
11-20-20, 12:47 PM
its sounds from my research it's not much of a concern for most people as they just get speakers for their systems and that's usually good enough. With what I'm doing grabbing random orphan speakers you gotta know a little bit about what you're grabbing. So I'll get speakers depending on the intended system I'm connecting them to.
