SKU: 76002558210

Ashly KLR-4000 Stereo Power Amplifier 850Wchannel At 8 Ohms Stereo

$1039.05 $1154.50
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Description

Ashly KLR-4000 Stereo Power Amplifier 850Wchannel At 8 Ohms StereoThe KLR 4000 from Ashly is a professional quality power amplifier that provides high quality audio in a lightweight and efficient design. The amplifier has a 2RU rackmount design for installation in any equipment rack. It can operate in stereo, bridged, or parallel modes for terrific versatility. The 2 step Class H circuitry provides excellent efficiency, while the switch mode power supply delivers deep bass, punchy midrange, and clear treble. The

The KLR-4000 from Ashly is a professional-quality power amplifier that provides high-quality audio in a lightweight and efficient design. The amplifier has a 2RU rackmount design for installation in any equipment rack. It can operate in stereo, bridged, or parallel modes for terrific versatility. The 2-step Class-H circuitry provides excellent efficiency, while the switch mode power supply delivers deep bass, punchy midrange, and clear treble. The amplifier has Euroblock and combo XLR/TRS inputs, as well as Neutrik Speakon outputs, allowing you to connect to virtually any professional sound system.

The amplifier features front panel level controls for each channel, as well as indicator LEDs for output level, clip/protect, and power on/off. Each channel has a 3-position gain switch, as well as a 3-position high pass filter switch. A switchable limiter is also built in to prevent distortion. A forced air cooling system with front-to-rear air flow and removable dust filters prevents the amplifier components from overheating. Integrated protection circuitry prevents damage from over-current, DC output, and overheating.

Features

  • Compact 2RU rackmount design for installation in any standard equipment rack
  • Switchable stereo, bridged, and parallel modes for terrific versatility
  • 2-step Class-H circuitry provides excellent efficiency
  • Switch mode power supply delivers deep bass, punchy midrange, and clear treble with excellent power efficiency and low weight
  • Euroblock and combo XLR/TRS inputs, along with Neutrik Speakon outputs allow you to connect to virtually any professional sound system
  • Front panel level controls for each channel
  • Indicator LEDs for output level, clip/protect, and power on/off
  • Each channel has a 3-position gain switch
  • 3-position high pass filter switch lets you reduce low-frequency rumble and hum
  • Switchable limiter prevents distortion
  • Forced air cooling system with front-to-rear air flow and removable dust filters prevents the amplifier components from overheating and keeps them clean
  • Integrated protection circuitry prevents damage from over-current, DC output, and overheating
  • Permanently-attached power cord

Specifications

Form Factor/Type
Rackmount
Number of Amplifier Channels
2
Load Impedance/Voltage Support
4 / 2 / 8 Ohms
Power Rating per Channel
2x 2000 W Peak at 2 Ohms
2x 1400 W Peak at 4 Ohms
2x 850 W Peak at 8 Ohms
Channel Bridging & Power Sharing
1x 4000 W Peak Bridged at 4 Ohms
Amplifier Class
2-Tier Class-H

Performance
Protections
DC Fault, DC Offset, Overcurrent, Thermal
Frequency Response
20 Hz to 20 kHz +0.3 dB (1 W at 8 Ohms)
5 Hz to 70 kHz -3 dB
Damping Factor
> 380 at 8 Ohms
THD/Distortion
≤ 0.05% THD (20 Hz to 20 kHz, 10 dB Below Rated Output at 4 Ohms)

Signal Processing
DSP
No
Audio Delay
No
EQ & Filters
High-Pass Filter
Dynamics
Limiter

Connectivity
Analog Audio I/O
2x Block 3-Pin Balanced Line Input
2x Combo XLR-1/4" TRS Balanced Line Input
2x speakON NL4 Speaker Output
Digital Audio I/O
No
Network I/O
No
USB I/O
No
Phantom Power
No
Wireless
No

Power
Input Power
120 VAC, 60 Hz
AC Power Connector
1x Hardwired Cord 15 A / NEMA 5-15
Current Consumption
14 A (1/8 Power)
19.8 A (1/3 Power)

Physical
Display
Single-LED Indicators Only
Rackmount Size
2 U
Cooling
2x Fan (Variable Speed)
Operating Conditions
22 to 72°F / -10 to 40°C up to 90% Humidity
Dimensions
19 x 16 x 3.5" / 48.3 x 40.6 x 8.9 cm
Weight
26.7 lb / 12.1 kg

Packaging Info
Package Weight
33.7 lb
Box Dimensions (LxWxH)
19 x 16 x 4"
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 76002558210

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4.2 ★★★★★
Based on 18 reviews
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Product Reviews
A
Verified Purchase
Allison Stitt
Lake Worth, US
★★★★★ 5
This is a must have!
Size: Upgrade Queen (2 Pack)
One of my favorite purchases! I love that you can take stuffing out as needed. My husband kept majority of his in because he likes a full pillow. I prefer a flatter, soft pillow so I took out probably half of the stuffing. We both love them!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
M
Verified Purchase
mikecube
Waukegan, US
★★★★★ 5
Excellent pillow.
Size: Upgrade Queen (2 Pack)
Wow these pillows are fantastic!!! First off they are good quality and sized as described. I'm forced to sleep on my back since I use a cpap every night. They suggest taking some filling out for "back sleepers". But in my case, I am disabled, overweight, and the way I position myself on a pillow is probably unique. I have a little of my shoulders, head and neck on the pillow. I didn't have to remove any filling. It was pretty good at first and after about a few day/nights, everything settled in just perfectly. It's truly one the finest pillows I've owned to date. (Part of my disability is a very painful neck & muscle malady, my head leans far to the right. Basically feels like a crick in your neck that never goes away. It's called tortacollis or dystonia depending who you talk to.) Because of this, I have truly spent hundreds and hundreds of dollars on different types and styles of pillows. A very select few have worked out fairly well over time until I found this one. As I said in the beginning, this is an excellent pillow and a great value as well. Hopefully this will work as well or even better for others. I purchased a 2 pack this time, 1 for home and the other for our RV. Definitely buying. another 2 pack to keep for future replacements. Pillows simply don't last forever. They get funky in time. No matter how clean you try to stay with bedding and personal hygiene, it just happens eventually. Sweet dreams. :~)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 23, 2025
T
Verified Purchase
Tiffany Vela
Bozeman, US
★★★★★ 1
👎🏽 a
Size: Upgrade Queen (2 Pack)
Incredibly thick and firm pillows. Not great for stomach or side sleepers. They alway end up on the floor cause we find them uncomfortable. Don’t recommend, practically unusable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 5, 2025
M
Verified Purchase
Mopardodgegirl
Whiting, US
★★★★★ 5
It works! Quality pillow.
Size: Standard (1 Count), Color: Original White (Cooling)
This does actually provide a cooling effect, and it's very comfortable! The accompanying literature is helpful too. I believe this to be a quality pillow for the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
jin
Massapequa, US
★★★★★ 5
Most comfortable pillow I’ve ever slept on
Size: Queen (1 Count), Color: Crescent White(cooling)
This is the most comfortable pillow I have ever slept on. It doesn't mash down like other pillows. Cradles my neck perfectly plus it’s cool. I broke my neck a couple of years ago and this pillow feels very good and comfortable. Definitely recommend to everyone. Ive used it since May and it’s retained its shape.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 6, 2026

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