SKU: 58286850823

ESX QL800.4 - 4 Channel Amplifier

Sale price$117.00 Regular price$130.00
Save 10%

Pay in installments of $32.50 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 29 - Oct 4

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ESX QL800.4 - 4 Channel AmplifierSpecifications 4 Channel Class D Digital Amplifier 4 x 125 200 Watts RMS @ 4 2 2 x 400 Watts RMS @ 4 bridged HPF 50 5000 Hz (CH1 2) HPF 10 500 Hz (CH3 4) LPF 50 5000 Hz (CH3 4) Copy Mode CH3 4 > CH1 2 Bass Boost 0 12 dB Bandpass Function Input Selector Dimensions 226 x 43 x 120 mm Efficiency up to 86% Features Advanced Class D Technology with very high Efficiency Selected and audiophile tuned Components Massive Aluminum Heatsink Heavy lateral Die cast

Specifications

  • 4-Channel Class D Digital Amplifier
  • 4 x 125/200 Watts RMS @ 4/2 Ω
  • 2 x 400 Watts RMS @ 4 Ω bridged
  • HPF 50-5000 Hz (CH1/2)
  • HPF 10-500 Hz (CH3/4)
  • LPF 50-5000 Hz (CH3/4)
  • Copy Mode CH3/4 > CH1/2
  • Bass Boost 0-12 dB
  • Bandpass Function
  • Input Selector
  • Dimensions 226 x 43 x 120 mm
  • Efficiency up to 86%

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 QUANTUM QL amplifiers in the ESX Portfolio are technically the small siblings of the QUANTUM QE models. Ideally, they can be used where the installation space is very tight. They are also emission-free and, like the large QE models, have the finest Class D technology on board, which leaves nothing to be desired in terms of performance, sound quality and setting options. The QL models are also coming with the space-saving remote control

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: 58286850823

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.1 ★★★★★
Based on 21 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
Kindle Customer
Port Orchard, US
★★★★★ 5
Super fun!
Size: 8.5, Color: Red Pepper
These are so fantastic! The color is amazing! It is a bit on the tomato-red side of the color-wheel. The fit is great. They are comfortable from the 1st step. Easy to walk in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 17, 2026
P
Verified Purchase
Penina Vahav
Port Orchard, US
★★★★★ 5
Look nice and super comfortable
Size: 9.5, Color: Sand
Very comfortable and go with everything! True to size and worth the price!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
D
Verified Purchase
Debra S.
New York, US
★★★★★ 5
Comfortable
Size: 7, Color: Sand
Sharp cute trendy! Light weight, versatile Excellent quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
J
Verified Purchase
Jayne
Omaha, US
★★★★★ 5
Footbed very soft and cushiony
Size: 9, Color: Sand
It was so comfortable even though it was a half size too small so i was able to exchange for a larger size. I originally ordered a size 9 and exchanged for a 9.5. I haven’t received the 9.5 yet but I am sure I am going to love them. They are so cute and go with everything.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
A
Verified Purchase
amazonfan
Cuba, US
★★★★★ 4
I wanted to love these....
Size: 8, Color: Sand
I really wanted to love these, and I *almost* did. They are comfortable and cute. But they are a little wide across the mid-foot so they were a little sloppy on my feet. The platform is quite high, and while at 5'3" I appreciated the extra height, between that and being too wide, I felt they were an accident waiting to happen. If they were slightly more narrow and a little lower, I would have been in love, but I had to return them. They seem true to size except for the extra width.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 10, 2026

recommand products