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Gemini XGA-4000 Power Amplifier   

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The XGA-4000 amplifier offers clean, reliable power in a durable, lightweight enclosure. If you demand professional amplification performance, the XG...Read More

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Clean power without cleaning your bank account.

The XGA-4000 amplifier offers clean, reliable power in a durable, lightweight enclosure. If you demand professional amplification performance, the XGA-4000 is perfect for delivering pure, consistent wattage night after night.

With 4000 watts of Instant Peak Power (700 watts RMS), the XGA-4000 is ideal for powering PA systems and DJ rigs. To ensure seamless, reliable performance, the amp features front-to-rear airflow and a variable-speed cooling fan for thermal stability, along with a limiter circuit switch, DC output protection and short circuit protection.

For true connecting convenience, the XGA-4000 boasts XLR and ¼-inch balanced inputs, as well as RCA unbalanced inputs and three Speakon outputs. The unit also provides front panel indicators for Signal, Clip, Protect and Bridge, plus level controls for channels 1 and 2. Selectable modes for Stereo and Mono Bridge give you even more flexibility, while its sleek, lightweight design ensures total portability.

With clean, dependable power in a resilient, 23-pound enclosure, the XGA-4000 offers unmatched value for anyone who is serious about sound.

  • Front-to-rear airflow and cooling fan for thermal stability and reliability
  • XLR and ¼" (6.5mm Jack) balanced and RCA unbalanced inputs
  • Limiter circuit switch for amp output protection
  • Stereo and Mono Bridge
  • Variable speed fan for low noise
  • Comprehensive front panel indicators including signal, clip, protect and bridge
  • 3 Speakon outputs for Channels A/B/Bridge
  • 5-way binding banana plug channel outputs
  • Bridge control switch
  • DC output protection and Short circuit protection
  • 10Hz - 50kHz frequency response at 1.5 dB
  • Ground lift switch
  • Total Harmonic Distortion: Less than 0.1%
  • Input sensitivity & Impedance: 0.77v

A real winner in the dollars per watt contest. Order now.


XGA-4000 Power Amplifier

  • Frequency Response 10Hz 50kHz ±1.5dB
    Signal to Noise (LF / HF) >90dB
    THD (LF / HF) > 0.1%
    Input Sensitivity 0.77v
    Maximum Input Level 21dBv/9v
    Damping Factor (F=1kHz 8Î) >350
    Input Impedance 20K Î
    Fuse 5mm x 20mm AC 115v/230v 5060Hz
    Output Stereo 8 Î 2 x 250W RMS
    Output Stereo 4 Î 2 x 350W RMS
    Output Bridged 8 Î 700W RMS
    Dimensions (WxDxH) 19" x 13.8" x 3.5"
    (482mm x 350mm x 88mm)
    Net Weight 23.4 lbs (10.6 kg)

Review Snapshot

by PowerReviews
GeminiXGA-4000 Power Amplifier

(based on 2 reviews)

Ratings Distribution

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Reviewed by 2 customers

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(1 of 1 customers found this review helpful)


Clean pure and frothy output!

By Rich

from undisclosed

Verified Buyer

Comments about XGA-4000 Power Amplifier:

As advertised. Crystal clear even at low volume into my Rockville PA Speakers. Only issue was the box was probably dropped somewhere along the line and rack mount bracket on one corner was bent so badly it won't straighten correctly but I'm not rack mounting it so I will not make a fuss. Great value in my opinion. By the way the fans are loud as other reviewers have mentioned.

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(3 of 3 customers found this review helpful)


powerful, clean sound

By music maker

from Hawaii

About Me Experienced

Verified Buyer


  • Easy To Use
  • Excellent Sound
  • Portable
  • Powerful


    Best Uses

    • Amateur Recording
    • Events
    • Home Studio
    • Mobile DJ
    • Performances

    Comments about Gemini XGA-4000 Power Amplifier:

    the unit itself is very nice and simple to operate...there were 2 problems with my order though...first is that i ordered an open box, in mint condition unit for a discounted price....but they sent me a different unit with damaged speaker wire connections,it was also a different serial #...but they made up for that...the bigger problem was that nowhere on the description does it say that you must use neutrix or speakon cables to connect from the unit speaker out only says that it uses XLR ort 1/4" jacks...these are for input i needed to buy 2 additional 20' speakon cables at $60+ the extra shipping costs...had i known this at the time of purchase i could have either added them to my order, with included shipping costs, or changed my selection....MF worked it out but it took time,effort and is not what i ordered in the first place...

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