common ground amp ??

ONEFLESH
ONEFLESH Posts: 5
edited May 2012 in Troubleshooting
What exactly is a "common ground amp".
Post edited by ONEFLESH on
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  • DarqueKnight
    DarqueKnight Posts: 6,765
    edited November 2002
    Common Ground: An amplifier whose channels are all tied to a common ground (common electrical connection). This contrasts with an "isolated ground" amplifier where the ground of both channels is isolated from each other. An example of an isolated ground amplifier is a dual mono design.
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  • madmax
    madmax Posts: 12,434
    edited November 2002
    Don't forget the "non-common ground amp" (my own name) which actually has different potentials (voltages) on the grounds such as certain "bridged" amplifiers. "Non-common ground amps" differ from "isolated ground amps" like mono blocks because there are actually voltages on the grounds with reference to earth ground instead of just being isolated from each other.
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  • brgman
    brgman Posts: 2,859
    edited May 2012
    Is an amp with mechanically isolated tranformers a non common ground
    i would assume so
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  • nooshinjohn
    nooshinjohn Posts: 25,415
    edited May 2012
    I smell something... a smell I have not sniffed for a very long time...

    It smells like a rotted post!

    This thread is a DECADE old! Probably will get more responses this thime through than it got the first time.:cheesygrin:
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  • brgman
    brgman Posts: 2,859
    edited May 2012
    Hey if i don't find the previous post on a subject heiney starts actin' like a hiney.
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  • FTGV
    FTGV Posts: 3,649
    edited May 2012
    brgman wrote: »
    Is an amp with mechanically isolated tranformers a non common ground
    i would assume so
    I assume you mean two separate transformers in the same chassis in a dual mono configuration?That does not necessarily make it non common ground as it may use a non bridged output stages and have the negative speaker outputs of each ch connected to a common or star ground point.Thus making it common ground.
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