Stay Tuned For Our August Auction! Learn More

🔥 AVGear Deal Zone 🔥

Save on Pro AV Gear. Limited quantities.

Shop Now

Audio Amplifiers

Power your sound system with professional audio amplifiers. Browse high-quality used, demo, and B-stock power amps for live sound, installed systems, and commercial AV applications.

View as

  • QSC

    QSC PL 3.4 PowerLight Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC RMX5050 RMX Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC RMX2450 RMX Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PL 230 PowerLight 2 Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC ISA750 2-Channel Commercial Power Amplifier

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PL 1.8 PowerLight Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PL 9.0 PowerLight Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PXL3602 PLX2 Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC MX1500 - MX Series Power Amplifier

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PLX3602 PLX2 Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC CX902 CX Series 2-Channel Professional Power Amplifier

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PLX1804 PLX2 Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PLD4.3 PLD Series Multi-Channel System Processing Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PL 1.4 PowerLight Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PLX1202 PLX Series Power Amplifier

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PL 6.0 PowerLight Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC MX 1500a - MX Series High Power Low Profile Professional Power Amplifier

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PL 236 PowerLight 2 Series Professional Power Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PLD4.5 PLD Series Multi-Channel System Processing Amplifiers

    Out of Stock (0 units)
    View Product

  • QSC

    QSC PLX3402 PLX Series Power Amplifier

    Out of Stock (0 units)
    View Product

Professional Audio Amplifiers

An amplifier does one job: take a low-level audio signal and make it loud enough to drive your speakers. But how well it does that job is what separates professional gear from everything else.

AVGear carries new, used, demo, and B-stock professional audio amplifiers from the brands that sound engineers and system designers rely on. Every unit in our Las Vegas warehouse is inspected and tested by our team before it ships.

  • Every amplifier tested and graded before it ships
  • Clear functionality and cosmetic ratings on each unit
  • Decades of pro AV and live sound experience on our team
  • Trusted brands at prices well below retail
Contact AVGear

ONLINE AUDIO & VISUAL AUCTION

Professional Audio Amplifier Auctions

AVGear's quarterly Pro AV auctions feature inspected amplifiers from trusted brands at competitive bid prices. Have gear to offload? Submit your amps and our team takes it from there - listing, logistics, and payment handled start to finish.

View Upcoming Auctions

How Audio Amplifiers Work

An amplifier receives a line-level audio signal from a mixer, processor, or DSP and increases its power to a level that can drive loudspeakers. The amp's wattage output, impedance handling, and amplifier class (Class D, Class H, Class AB, etc.) all affect performance. Class D amplifiers are lightweight and energy-efficient, making them popular for touring and installed systems. Class H and Class AB designs are known for clean audio quality and have been industry staples for decades. Matching your amplifier's power output to your speakers' wattage and impedance ratings is the most important factor in getting reliable, clean sound.

  • Buying?

    Browse tested, graded professional amplifiers from top brands. From single-channel touring amps to multi-channel installation units, find the right fit for your system.

    Buy Now

  • Selling?

    Have amplifiers sitting in a rack or warehouse that you no longer need? AVGear offers consignment, direct buyouts, and auction services. We handle the process. You get paid.

    Sell Now

"I can't say enough about the FANTASTIC customer service and GREAT DEALS you'll get with this company. So glad to have found this gem!"

Jersson Garcia

Have Questions?

What's the difference between a Class D and a Class AB amplifier?

Class D amplifiers use high-frequency switching to deliver power efficiently, resulting in lighter weight, less heat, and lower energy consumption. They're popular in touring and installed sound for their small setup and reliability. Class AB amplifiers use a traditional analog design that many engineers favor for its audio character. Both are used widely in professional applications. The best choice depends on your priorities around weight, heat, rack space, and sound preference.

How do I match an amplifier to my speakers?

Check your speaker's power handling (in watts) and impedance (in ohms). Your amplifier should deliver enough wattage to drive the speaker to full output without clipping, and it needs to be rated for the speaker's impedance load. A general rule: choose an amp that delivers 1.5 to 2 times the speaker's continuous power rating for clean headroom. If you're unsure, contact our team and we'll help you find a good match.

What does 70V/100V output mean on an amplifier?

70V and 100V are constant-voltage distributed audio systems commonly used in commercial installations. Instead of running dedicated amplifier channels to each speaker, a single amp channel drives a line of speakers wired in parallel, each with its own transformer tap. This makes it practical to cover large areas (retail stores, offices, airports, campuses) with fewer amp channels and simpler wiring.

Does AVGear test amplifiers before selling them?

Yes. Every pro amplifier goes through hands-on testing at our Las Vegas facility. We verify power output, check all channels, test inputs and outputs, and inspect for any signs of overheating or component wear.

What brands of amplifiers does AVGear carry?

Our inventory includes amplifiers from L’Acoustics, d&b Audiotechnik, Crown, QSC, Lab Gruppen, Powersoft, Yamaha, Dynacord, Crest Audio, Behringer, and others. Stock changes as new equipment comes in, so check back often or contact us if you're looking for something specific.

Can I sell my amplifiers to AVGear?

Yes. We offer consignment, direct purchase, and auction options. Our team handles valuation, logistics, and remarketing. Head to our Sell Your Gear page to submit your equipment and get started.

Does AVGear ship amplifiers?

Yes. We offer standard shipping nationwide. Most amplifiers ship easily in standard packaging. Contact us if you have questions about shipping for larger or heavier units.

Make an offer
Make an offer
Make an offer