4 channel bridgeable amp 2 ohm stable?

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wotugot4me

Copper - Posts: 64

Joined: March 09, 2005

Location: United Kingdom

Posted: April 02, 2007 at 7:37 AM / IP Logged

Hi

Please can someone tell me if my assumption is correct, I have a 4channel amp that i know is bridgeable to 2 channels. I have no instructions or online manual as its about 10 years old. If the amp is bridgeable does this also mean that the amp will be 2 ohm stable in stereo mode?

Just curious because Ive been told that a bridged amp sees a sub as a lower load eg, a 4 ohm sub is seen as 2 ohms and if this is true is it wrong to assume the amp will be 2 ohm stable?

Any help appreciated. Thanks

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wotugot4me

Copper - Posts: 64

Joined: March 09, 2005

Location: United Kingdom

Posted: April 02, 2007 at 7:54 AM / IP Logged

Ok, after reading some more I found out that the amp does not see a lower load, it sees the load placed on it, can I still assume the 2 ohm stable though?

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ferretvw

Copper - Posts: 188

Joined: September 29, 2005

Location: Pennsylvania, United States

Posted: April 02, 2007 at 10:32 AM / IP Logged

In my experience no they are not 2 ohm stereo stable. generally if a 4 channel amp is bridgeable you can either run 4 4ohm loads, 2 4ohm loads (bridged) or 2 2ohm loads (bridged) now this is not true on all amps so the make and model might be helpful also as someoner here may know about your amp specifically.

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wotugot4me

Copper - Posts: 64

Joined: March 09, 2005

Location: United Kingdom

Posted: April 03, 2007 at 4:07 AM / IP Logged

It not a well known brand, its a starsound ssa 6040, about 10 years old, think it was called "The purple series" ON this amp I wouldn't have thought I could run 2 ohm loads when bridged and if I could run it bridged then why not stereo ( all 4 channels 2 ohm). I guess maybe there is no definite rule and its best to look in the manual but when the amp is this old and a "no name" brand its tricky to find out this info.

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mlaurenza

Member - Posts: 33

Joined: December 21, 2006

Location: United States

Posted: April 03, 2007 at 1:28 PM / IP Logged

Most amps are 2 ohm stable in stereo but not mono. That means that you cannot bridge channels a-b to 2 ohms. You can run channel "a" to 2 ohms and channel "b" to 2 ohms. Same with channels "c" and "d".

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4 channel bridgeable amp 2 ohm stable?

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