Phoenix Digital PD-394 Car Amp Logo
Posted on Feb 08, 2009
Answered by a Fixya Expert

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Amp on "protect" mode

On the RCA input end of my PHOENIX DIGITAL PD-394 (PD394)
4-Channel 1000W AMPLIFIER w/ Fan Cooling System there is a small light which says (green) power and (red) protect. Well right now the light is red and i am not sure what this means or what i need to do to fix it or reset it.

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Dalynn Turner

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  • Posted on Feb 09, 2009
Dalynn Turner
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Hi, what you need to do is unplug all the connections to the amp. The amp goes into protection when the circuitry over heats.\
First decrease all your gains to minimal volume.
Connect your 12+V, remote, and ground.
See if the protection light comes on then.
Next plug in your RCA cables.
Check protection light.
Then plug in your subwoofer cables.
See if you are still in protect mode.
Hopefully everything works alright again.
Just slowly increase the gain to see what the cut-off is. Make sure you aren't dropping the ohmage too low on the amplifier. Check manual for correct wiring and such.

  • Dalynn Turner Feb 09, 2009

    Hi, what you need to do is unplug all the connections to the amp. The amp goes into protection when the circuitry over heats.\

    First decrease all your gains to minimal volume.

    Connect your 12+V, remote, and ground.

    See if the protection light comes on then.

    Next plug in your RCA cables.

    Check protection light.

    Then plug in your subwoofer cables.

    See if you are still in protect mode.

    Hopefully everything works alright again.

    Just slowly increase the gain to see what the cut-off is. Make sure you aren't dropping the ohmage too low on the amplifier. Check manual for correct wiring and such.

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    Features     

    • 2-ohm dual (per channel) : 1200W
    • 4-ohm dual (per channel) : 900W
    • 8-ohm dual (per channel) : 600W
    • 4-ohm Bridge : 2500W
    • 8-ohm Bridge 2100W

    • Indicators for : Signal, Clip, Power, AC Mains, Fault, Bridge, Temp.
    • Housed in a rugged, all-steel 2U chassis
    • Microprocessor-controlled protection system.
    • Flow-through ventilation from front to back.
    • Internal heat sinks with forced-air cooling for rapid, uniform heat dissipation.
    • EIA Standard 19-inch rack mount width
    • Safe with all types of loads.(2 to 8 ohms in Stereo, 4 to 8 ohms in Bridge Mono.)

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    • XLR-¼" combo connectors: One per channel
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    • 3-pin Phoenix-style connectors (2-channel models only),One per channel, accepts balanced or unbalanced signals.

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    • 5-Way binding post output connectors: One pair per channel; accept banana plugs, spade lugs or bare wire.
    • 4-Pole Speakon output connector (2-channel models only)
    • Accepts a 4-pole Speakon connector.
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