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Ashly KLR Series KLR4000 2-Channel 2000W High-Performance Power Amplifier

SKU: ASKLR4000EVU MFR: KLR-4000E-120V-U
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Key Features

  • Experience high output power with the Ashly KLR4000 power amplifier for impactful sound.
  • Achieve pristine audio clarity with a >109dB signal-to-noise ratio, minimizing unwanted noise.
  • This reliable amplifier features comprehensive protection circuits, ensuring long-term performance.
  • Optimize your sound with flexible impedance matching for various speaker configurations.
  • Enjoy efficient cooling, thanks to the variable speed fan, preventing overheating during use.
  • Perfect for live sound, this power amplifier delivers exceptional audio fidelity for any venue.
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Special Order?Estimated to Ship: 08/26/2025
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Ashly KLR Series Specifications

Max Output Power

Max Output Power

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  • 2 Ohms

    2000W

  • 4 Ohms

    1400W

  • 8 Ohms

    850W

Bridge Mode (20Hz-20kHz)

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  • 4 Ohms

    4000W

Line Current Draw

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  • Idle

    1.05A

  • 1/8th Power (Pink Noise)

    14A

  • 1/3 Power (Sine Wave)

    19.8A

Thermal Dissipation

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  • Idle

    171

  • 1/8th Power (Pink Noise)

    2489

  • 1/3 Power (Sine Wave)

    3516

Additional

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  • Signal-to-Noise

    >109dB (20Hz-20kHz, unweighted)

  • Input Gain Switch

    1V, 26dB, 32dB

  • Output Circuitry

    2-Step Class H

General

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  • Frequency Response

    20Hz-20kHz (+0.3dB)
    5Hz-70kHz (-3dB down point) (1W @ 8 Ohms)

  • Damping Factor

    >380 (100Hz @ rated power @ 8 Ohms)

  • THD (20Hz-20kHz)

    10dB below rated output @ 4 Ohms <0.05%

  • Input Impedance

    12k Ohm, balanced

  • Max Input Level

    +21dBU

  • HPF

    30Hz, 50Hz, Off (12dB/Oct)

  • Amplifier Protection

    Output Overcurrent, DC Output, Chassis Temperature, Mains Breaker (KLR-5000 uses internal Mains fuse)

  • Operating Temp/Humidity

    14 to 104 Degree F (-10 to +40 Degree C)/Humidity: 0% to 90%

Front Panel

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  • Airflow/Cooling

    Front-to-Rear, Variable Speed Fan

  • Front Panel Indicators

    Protection/Clip, Signal, Power

  • Attenuators

    Front Panel (each channel)

Rear Panel

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  • Input Connectors (each Ch)

    3-pin Euroblock, XLR, 1/4" TRS Phone Jack

  • Output Connectors

    4-pin SpeakON type (each channel)

  • Power Cable Connector

    3-prong NEMA 5-15, 5-20 for KLR-5000

Physical

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  • Power Requirements

    120VAC or 240VAC, +/-10% (factory set) 50-60Hz

  • Dimensions (W x H x D)

    19 x 3.5 x 16" (482 x 88 x 407mm)

  • Weight

    26.6 lbs (12kg)

  • UPC Code

    694970767836

About Ashly KLR Series

Take your audio experience to new heights with the KLR Series KLR4000 2-Channel 2000W High-Performance Power Amplifier. This high-efficiency, high-power amplifier is meticulously designed to cater to high-output speaker systems, line arrays, and dual 18" subwoofers, offering an unparalleled sound quality that rivals even the most expensive European amplifiers.

The KLR4000 stands out in its class for its exceptional quietness, boasting signal-to-noise ratio ratings ranging from an impressive >108 dB to >110 dB across all models. This ensures a clean, stable, and noise-free audio output, making it an ideal choice for professional audio setups and high-end home entertainment systems.

Equipped with a 3-position gain switch for both channels, this power amplifier allows for precise control over your audio output. Additionally, the 3-position mode switch offers flexibility with bridged, stereo, or parallel mono options, catering to a variety of audio requirements.

The KLR4000 also features a 3-position 12dB/oct HPF switch with 30Hz, 50Hz, or off settings, further enhancing its versatility and adaptability to different sound systems. Despite its high-power output and feature-rich design, the KLR4000 remains exceptionally lightweight for its class, making it easy to integrate into any audio setup.

Designed in a standard 2RU enclosure, the KLR Series KLR4000 2-Channel 2000W High-Performance Power Amplifier combines power, performance, and practicality in a sleek and compact package. With its impressive features and superior sound quality, the KLR4000 is an excellent choice for those looking to optimize their distributed sound system without compromising on quality or value.

Ashly KLR Series Features

  • Optimized to deliver high levels of sustained power
  • 2 RU configuration
  • Stable down to 2 Ohms
  • Balanced inputs via 3-pin Euroblock
  • Combo XLR/TRS connectors
  • Neutrik speakON output connectors
  • 30 Hz, 6 Hz, Off High Pass filter
  • Switch-mode power supply with extensive protection circuitry
  • On/Off limiter switch
  • Forced-air cooled (front-in, rear-out)
  • Removable, easy-to-clean dust filters
  • Front-mounted attenuators
  • Removable amp handles for permanent installation
  • Optional locking front panel volume knobs
  • Safety/Compliance: cCSAus, CE, FCC, RoHS
  • Output topology: 2-step Class-H design

Warranty Information

This product has a limited warranty of 60 months for parts and 60 months for labor.

Product Documents

User Manual

Key Features

  • Experience high output power with the Ashly KLR4000 power amplifier for impactful sound.
  • Achieve pristine audio clarity with a >109dB signal-to-noise ratio, minimizing unwanted noise.
  • This reliable amplifier features comprehensive protection circuits, ensuring long-term performance.
  • Optimize your sound with flexible impedance matching for various speaker configurations.
  • Enjoy efficient cooling, thanks to the variable speed fan, preventing overheating during use.
  • Perfect for live sound, this power amplifier delivers exceptional audio fidelity for any venue.

What's in the box:

  • Ashly KLR Series KLR4000 2-Channel 2000W High-Performance Power Amplifier
  • Euroblock Connectors
  • Ashly 5 Year Limited Warranty