Everything in Music - Since 1958



Ashly KLR-4000 High Performance Amplifier


  • Our Price
  • $1,099.00
  • Regular price MSRP: $1,299.00

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Ashly Audio's KLR-Series amplifiers are high-efficiency, lightweight, two-channel, high power amplifiers incorporating the latest technologies delivering quality and value for professional performance at an extremely affordable price. Whether your application is professional audio or fixed performance installation, Ashly Audio KLR amplifiers are optimized to provide reliable audio performance with sonic perfection.

Covering a power range from 1000 to 2500 watts per channel at 2 ohms (20Hz-20kHz, 1% THD), the Ashly Audio KLR-2000, KLR-3200, KLR-4000, and KLR-5000 are perfectly suited for a wide range of sound reinforcement. All four Ashly KLR amplifiers are optimized to deliver high levels of sustained power, extraordinary audio performance, and road-proven reliability into 2, 4, or 8 ohm loads and are housed in a a uniform, rugged, 2RU chassis. Each Ashly Audio KLR amplifier uses a state-of-the-art Switch Mode Power Supply, which assures you of flawless lows, punchy mids, and pristine highs. The output topography of the Ashly Audio KLR-2000 is Class-AB, while the KLR-3200, KLR-4000, and KLR-5000 are a two-step Class-H design. Ashly Audio KLR-Series protection circuits include: output over-current protection, DC output protection, chassis internal temperature monitoring, inrush limiting, and a mains circuit breaker.

Rated Power 8 ohms (per channel): 850W
Rated Power 4 ohms (per channel): 1400W
Rated Power 2 ohms (per channel): 2000W
Rated Power 4 ohms (Bridged): 4000W



  • Balanced inputs via 3-pin Euroblock and combo XLR/ 1/4" TRS
  • Switch mode power supply provides high efficiency and low weight
  • Forced air cooled (front in, rear out)
  • Removable dust filters
  • Front mounted attenuators
  • Front panel indicators for output level, clip/protect, and power on/off
  • Gain selectable switch for both channels
  • Rack ears for permanent installation in a standard 2RU enclosure
  • Neutrik Speakon output connectors
  • 3-position gain switch (1V, 32dB or 26dB sensitivity)
  • 3-position mode switch (bridged, stereo or parallel mono)
  • 3-position HPF switch (30Hz, 50Hz or off)
  • On/off limiter switch
  • Permanently attached power cord
  • Extensive protection circuitry
  • Safety/Compliance: cCSAus, FCC, CE, RoHS


Manufacturer: Ashly Audio
Model: KLR-4000
Warranty: See manufacturer website for details
SKU: I441998-N-0-B
UPC: 8806326606610

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Maryland, Virginia, and Washington DC's legendary music shop. Family-owned and operated since 1958. Buy gear the way it was meant to be bought, from a store that's been there through it all and has the vibe to prove it. We're staffed with musicians and industry experts, people that live and breathe music gear. Our mission is to help you find the right gear for your project, that thing that will bring you the most joy out of what you do. We're an authorized dealer for almost every brand, we stock items the other stores don't, so you can try before you buy. Stop by our Wheaton, MD showroom and see for yourself.

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