| Author |
Thread: Determining Watts at ohms |
    
ohm-ish Unregistered guest |
| Posted on Tuesday, January 18, 2005 - 08:49 pm: |
|
At the risk of sounding overly ignorant..
Can someone point out the method of determining X Watts at Y ohms?
Eg. If an amp is rated at 100Watts RMS at 2 Ohms, What is the same amp rated at 4 Ohms? |
|
|
|
Silver Member Username: Hdubb
Farmington,
Nm
Usa
Post Number: 387
Registered: Nov-04
|
| Posted on Tuesday, January 18, 2005 - 09:00 pm: |
|
the amp will be at 50 watts rms. the lower the ohms the less resistance which equals more power. thar amp at 1 ohm would have 200 watts going through it. at 3 ohms it would be 75 watts. 4ohms is half of 2 and 2 is half of 1. |
ohm-ish Unregistered guest |
| Posted on Wednesday, January 19, 2005 - 03:18 am: |
|
Ahh...i see.
Thanks Hunter. |
Gold Member Username: Glasswolf
NorthWest,
Michigan
USA
Post Number: 7404
Registered: Dec-03
|
| Posted on Wednesday, January 19, 2005 - 10:05 am: |
|
theoretically, not accounting for efficiency and losses to heat and such, half the resistance would be twice the power output.
8 ohms = 50 watts
4 ohms = 100 watts
2 ohms = 200 watts
1 ohm = 400 watts
you get the idea.
in reality, half the load never quite makes twice the power, because you always lose a bit of power to heat and efficiency depending on the amp. some lose more than others.
|
|
