SDA SRS 1.2 6 ohms or (much) lower?

dan98svt
dan98svt Posts: 83
in Vintage Speakers
I keep seeing brand x amp shuts off, or brand y amp works great at lower volume, but clips at higher volume...
The SRS 1.2s are rated at 6 ohms. I know this is a nominal rating and that it flexes somewhat, but to what extent and for how long? Can it drop so low as to activate protection on some amps that are rated for 4 ohms or even smoke them?
Dan
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  • F1nut
    F1nut Posts: 50,552
    Answer ✓
    There are few amps that cannot be driven into clipping and I'm positive no one here owns one.

    So ok, the nominal ohm rating is only part of the equation. Things like the efficiency of the speaker, the source and the power supply (current) of the amp also play a role.

    What amp are you considering?
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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  • Schurkey
    Schurkey Posts: 2,101
    Answer ✓
    A nominal 6-ohm load with an amp rated for a nominal 4-ohm load shouldn't be a problem other than simply running out of power due to high volume/large listening room.

    If the amp is run at or below it's rated wattage, you'll be fine. I can imagine a test signal frequency that might make your amp a little wobbly...but not likely with actual program material.

    Doesn't mean that a better amp wouldn't be an upgrade.
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Answers

  • dan98svt
    dan98svt Posts: 83
    Local guy selling a Kenwood M2A. I hear it's not the best, but it is affordable. It's had some work professionally done to upgrade speaker terminals and something about the power supply being calibrated (???). I'm guessing it'll be an improvement over just using an AVR. It is dual voltage, which is a plus over using a huge transformer (220 volts over here). All the ADCOMs I've looked at are 110 only and close to maxing out my transformer.
    Kenwood is 220 w @ 8 ohm, 350 w @ 4, .003 THD.
    AVR is 140 w @ 8, 170 @ 6.
    Dan
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  • F1nut
    F1nut Posts: 50,552
    Local guy selling a Kenwood M2A

    I have no knowledge of that amp, but I agree it will be an improvement over your AVR.
    something about the power supply being calibrated (???).

    I'm sure that means the bias was adjusted, a good thing.
    Political Correctness'.........defined

    "A doctrine fostered by a delusional, illogical minority and rabidly promoted by an unscrupulous mainstream media, which holds forth the proposition that it is entirely possible to pick up a t-u-r-d by the clean end."

    President of Club Polk

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