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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.

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  • WisyCom

    WisyCom MRK960 Dual-Channel Rack Reciever

    Out of Stock (0 units)
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  • Yamaha

    Yamaha M-85 Natural Sound Stereo Power Amplifier

    Out of Stock (0 units)
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  • Yamaha

    Yamaha HTR-5740 6.1-Channel Digital Home Theater Receiver

    Out of Stock (0 units)
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  • Yamaha

    Yamaha DCP4S-US Digital Control Panel

    Out of Stock (0 units)
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  • Shure

    Shure FP22 Headphone Amplifier

    Out of Stock (0 units)
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  • Shure

    Shure FP11 Microphone-to-Line Amplifier

    Out of Stock (0 units)
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  • Shure

    Shure FP16A Distribution Amplifier

    Out of Stock (0 units)
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  • Shure

    Shure AXT630 Axient Wireless Antenna Distribution Amplifier

    Out of Stock (0 units)
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  • ROLLS

    ROLLS HA43 Pro 4-Channel Stereo Headphone Amplifier

    Starting at
    $1.69
    In stock (17 units)
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  • ROLLS

    ROLLS RA62 Rackmount Headphone Amplifier 6-Channel Stereo

    Out of Stock (0 units)
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  • RTS Systems

    RTS Systems Model L 416 Audio Distribution Amplifier

    Out of Stock (0 units)
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  • ROLLS

    ROLLS RA163 Distribution Amplifier Pro Plus

    Out of Stock (0 units)
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  • ROLLS

    ROLLS HA43 4-Channel Stereo Headphone Amplifier

    Out of Stock (0 units)
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  • QSC

    QSC PLX 1602 2-Channel 1600W Power Amplifier

    Out of Stock (0 units)
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  • QSC

    QSC PLX 1804 2-Channel 1800W Power Amplifier

    Out of Stock (0 units)
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  • Renkus-Heinz

    Renkus-Heinz P2500 Stereo Power Amp

    Out of Stock (0 units)
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  • Radio Design Labs

    Radio Design Labs RU-PA518 Audio Amplifier

    Out of Stock (0 units)
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  • RDL

    RDL FP-PA20A 20 W Mono Audio Amplifier - 70 V

    Out of Stock (0 units)
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  • QSC

    QSC CXD4.2Q-NA 4-Channel Processing Amplifier

    Out of Stock (0 units)
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  • QSC

    QSC PLX 2402 2-Channel Pro 2400W Power Amplifier

    Out of Stock (0 units)
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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

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.

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.

  • 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.

"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.

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