SKU: 92479366274

ESX QE900.4 - 4 Channel Amplifier

Sale price$173.25 Regular price$192.50
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Ships within 48 hours · Estimated delivery Jul 12 - Jul 17

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Description

ESX QE900.4 - 4 Channel AmplifierSpecifications 4 Channel Class D Digital Amplifier 4 x 150 225 Watts RMS @ 4 2 2 x 450 Watts RMS @ 4 bridged HPF 50 5000 Hz (CH1 2) HPF 10 500 Hz (CH3 4) LPF 50 5000 Hz (CH3 4) Copy Modus CH3 4 > CH1 2 Bass Boost 0 12 dB Bandpass Function Input Selector Dimensions 280 x 46 x 165 mm Efficiency up to 84% Features Advanced Class D Technology with very high Efficiency Selected and audiophile tuned Components Massive Aluminum Heatsink Heavy lateral Die

Specifications

  • 4-Channel Class D Digital Amplifier
  • 4 x 150/225 Watts RMS @ 4/2 Ω
  • 2 x 450 Watts RMS @ 4 Ω bridged
  • HPF 50-5000 Hz (CH1/2)
  • HPF 10-500 Hz (CH3/4)
  • LPF 50-5000 Hz (CH3/4)
  • Copy-Modus CH3/4 > CH1/2
  • Bass Boost 0-12 dB
  • Bandpass Function
  • Input Selector
  • Dimensions 280 x 46 x 165 mm
  • Efficiency up to 84%

Features

  • Advanced Class D Technology with very high Efficiency
  • Selected and audiophile tuned Components
  • Massive Aluminum Heatsink
  • Heavy lateral Die-cast Parts
  • High Level Inputs with Error Protection System (EPS)
  • Auto Turn-On Function
  • Start/Stop Ready
  • MOSFET PWM Power Supply
  • 3-Way Protection Circuit
  • Compact Bass Remote Controller

 

The newly developed ESX QUANTUM QE series is a class of its own. Conventional high power digital amplifiers usually cause interferences in the vehicle and disturb the radio reception. Not so with the new QE models: During the development period, special attention was paid to achieve an emission-free music playback. Also the sound is perfect,  because high-quality components guarantee an audiophile sound experience at its best. The features are also impressive: Auto Turn-On Function, EPS, variable crossover filters – everything your heart desires is on board. High-quality connectors and screwed RCA sockets complete the perfect appearance. All amplifiers are delivered with a sophisticated level remote control, which can be installed very space-saving with or without housing.

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: 92479366274

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Jeff in Iowa
Grantham, US
★★★★★ 5
Fixed noisy and leaking power steering pump
My daughters 2008 Honda Accord 2.4L 4 cylinder that had a very noisy power steering pump which was also starting to leak. I was about to buy a new pump when I found out it might just be leaking from the hoses to the pump. I bought these O rings for the hose connections at the power steering pump, and spent 15 minutes replacing them. Pump is quiet again! The suction hose can develop a leak, letting air get into the pump which creates the loud noises. This fix is all I needed, and was much cheaper and faster than replacing the power steering pump.
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Reviewed in the United States on March 10, 2026
J
Verified Purchase
Josh
Grantham, US
★★★★★ 5
Perfect!
Fits exactly on my 2000 civic and I have not had any issues!
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Reviewed in the United States on February 18, 2026
A
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Amazon Customer
Los Angeles, US
★★★★★ 5
Good brand
They work good so far.
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Reviewed in the United States on March 4, 2026
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Perfect fit for 2004 Honda Element, Fixed leak!!
Perfect fit for 2004 Honda Element Dx. Fixed my power steering leak and was super easy to install. Took 5-10mins at most. Would definitely buy again, 5/5 stars!!!
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Reviewed in the United States on December 26, 2025
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Amazon Customer
Cuba, US
★★★★★ 5
Good fit
Both filters fit well on my 2019 Honda CRV. I was able to replace without struggle. Did it on my own first time.
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Reviewed in the United States on May 5, 2026

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