Question about Gli Pro XA2200 Amplifier

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Unit does not power on any more

GLi XA-2200 rack mount power amp. Used for practice 3 times per week in a live band. Never over heated or used with any other cable than Speakons (which work great with other amps).

Ran great for 8 months then left "A" side started fading. LED backlight failure on left channel analog needle. 10 months and left side faded completely. After 12 months the right "B" side started fading as well., but LED backlight still works Amp powered up, just gave less and less power to the speakers. Then it stopped about 14 months.

Now it simply powers on, power light switch illuminates, but both outputs send a spike that clips my speakers roughly every 3 seconds at regular intervals.

Any ideas what to test and replace?

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Posted on Jan 02, 2017

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SOURCE: How much Rms power does the a-6300 put out per channel

The amp is rated at 120wpc on various websites but I suspect that number is too high since the amp weighs only 15lbs. The 400 watt spec is power consumed - not speaker/RMS power.

As for blowing out your speakers, that far more likely to happen with a low powered or cheap amplifier like the GLI A-6300. A low powered amp will quickly burn out a speaker if driven too hard. If you want to protect your speakers from damage, either keep the volume at a reasonable level or buy a bigger amp.

Posted on Dec 28, 2008

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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.)

Inputs 

  • XLR-¼" combo connectors: One per channel
  • 3-pin female XLR connector and TRS ¼" phone jack accept balanced or unbalanced signals.
  • 3-pin Phoenix-style connectors (2-channel models only),One per channel, accepts balanced or unbalanced signals.

Output 

  • Balanced XLR connectors (2-channel models only)
  • One per channel, 3-pin male XLR connector in parallel with XLR-¼" combo and Phoenix-style input connectors for daisy-chain operation.
  • 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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