Bridge an car amp ? It cuts ohms in half ? Sonic said this.?

So when u bridge an amp it cuts the ohms in half ? So if I have three subs wired together and get say a 2.7 ohm load at the end then when I put on bridge on a amp it will cut the 2.7 in half ?

Why how is this ? So nice electronics said this.......

So I have 2 DVC 4 ohm subs wired together and get a 4ohm load or 3.5 on meter....... THEN when I just attach wires to amp as brigged it will drop that 4 to a 2 ohm load on amp ??????? Like speakers won't read it as 2 but amp drops it to 2 just cause its on bridged mode ?

Zaphod Beeblebrox2016-01-06T03:01:04Z

NO!!! You have completely misunderstood. Bridging the channels on an amplifier doesn't ever "cut the ohms in half". Just the opposite - it typically doubles the impedance. For example, if the amplifier is 2 ohms per channel in 2-channel mode, it will be 4 ohms when bridged. Look in the owners manual of the amplifier you are using. It will tell you what the impedance of the amplifier is in bridged mode. DON'T ASSUME - LOOK IT UP!!! If your are unable to do that, give us the exact brand and model number of your amplifier and we will look it up for you.

If your three subs have a total impedance of 2.7 ohms and the amp is rated for 4 ohms bridged you will either destroy your amplifier by overheating it, or it will shut down if it has a thermal protection circuit.

By the way, going back to a question you asked two weeks ago, it is a BAD IDEA to use different types of subwoofers together. They will not have the same performance and more often than not mismatched subs will not sound good together. This is especially true if the subs are not the same impedance. Use identical subs.

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Masked2016-01-05T22:48:26Z

Refer to my answer above

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