My sub has twin 6 ohm voice coils connected parallel which gives an impedance of 3 ohms.

 

My amplifier instructions say that bridging can be done at 4 ohms to give 250RMS

 

My amp is rated at 2 ohms but would I be okay to bridge at 3 ohms?

 

Thanks for any help.

 

Steve E

Usually depends on the amp, I have a kenwood 823 and that will run two 4ohm subs in parallel to give one 2 ohms connected to the bridged output so it can be done, but sometimes it causes the thermal protection circuit to switch it off. Bloody loud though !

 

 

Olly.

On the amp it will state whether its stable at 2 ohms if its doesnt then all you will get is it cutting out all the time, it might sound loud but if it keep going off then thats not good

 

 

Cheers

Kirbz

Originally posted by kirbz

On the amp it will state whether its stable at 2 ohms if its doesnt then all you will get is it cutting out all the time, it might sound loud but if it keep going off then thats not good

 

 

Cheers

Kirbz

 

 

Thanks........amp is 2 ohm stable but doesn't mention bridging at 2 ohm.......only mentions 4 ohm

 

I read here.......

 

http://www.rocketroberts.com/techart/amp.htm

 

that even running an amp bridged with a 4ohm load puts the amplifiers power supply to its limits.

 

Steve E

If it is bridgeable on those outputs then the resistance shouldn't be a problem as long as you don't go below the maximum for each channel when combined if that makes sense.

If it's stable at 2 ohms it means you can't go much below that value without risk of damage.

3 should be fine and the rated output will be halfway between those quoted for 4 ohms and 2 ohms...