SKU: 21694422015

ESX QS-FOUR-ISO 4-Channel Plug+Play Nano Amplifier

$103.92 $115.47
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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

ESX QS-FOUR-ISO 4-Channel Plug+Play Nano AmplifierThe ESX QS FOUR ISO is a QUANTUM 4 channel Class D Plug+Play nano amplifier for suitable ISO connector installations. It is designed to power front and rear speakers from a tiny 90 x 35 x 80 mm chassis without the space demands of a conventional amplifier install. 4 x 35 45 60W RMS at 4 3 2 ohm, or 2 x 120W RMS bridged at 4 ohm. Includes a 60 cm HD Audio ISO Plug+Play wire harness for suitable ISO connector vehicles. Switchable HPF LPF filtering at 80

The ESX QS-FOUR-ISO is a QUANTUM 4-channel Class D Plug+Play nano amplifier for suitable ISO connector installations. It is designed to power front and rear speakers from a tiny 90 x 35 x 80 mm chassis without the space demands of a conventional amplifier install.

  • 4 x 35/45/60W RMS at 4/3/2 ohm, or 2 x 120W RMS bridged at 4 ohm.
  • Includes a 60 cm HD-Audio ISO Plug+Play wire harness for suitable ISO connector vehicles.
  • Switchable HPF/LPF filtering at 80 Hz for front and rear channels.
  • High-level inputs with EPS, Auto Turn-On, Start/Stop readiness and RCA inputs/outputs via cable connector.
  • Stereo RCA output can feed an active subwoofer where the system layout supports it.

Before ordering: Check the vehicle uses the correct ISO connector layout and that the factory wiring can support this amplifier installation.

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: 21694422015

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4.3 ★★★★★
Based on 26 reviews
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Therapy by the Sea
Lexington, US
★★★★★ 4
EXCELLENT FEET MOISTURE PROTECTION
Size: S (up to size 7)-Beige, Size: S (up to size 7)-Beige
Why did you pick this product vs others?: I have burns on my feet and needed something that I could put burn creme on and still walk around in with. I tried other silicone footsie but they would teae really easily. So far these are doing really well for this purpose. They are holding their shape too. The only caution I have is the same with all silicone footsies: They can be slippery on wet floors, so also wear with socks over them. The biggest issues is when they say a size they mean it. The silicone used in these have little give in them, so they won't stretch out and loose their shape. That can be a good thing, or not so good, depending on how well they fit your feet and what your intent is with wearing these. The other issue is if they fit snug around those toes, that tends to be where the first tear in the material will happen. Because of how these are made, the tear is actually more like cracking in the material and once it occurs you won't be able to get much use out of the sock after that. If you are planning to wear them around the house or for long term use, I suggest going up a size or look for the toeless options.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 5, 2025
S
Verified Purchase
Shawna
Birmingham, US
★★★★★ 3
Silicone socks
Size: M (up to size 9)-Beige
The socks are sized large. The quality of the silicone is good. But they slide around on your feet if you try to walk, making them difficult to use and a bit uncomfortable. Unless you are able to sit for long periods of time the likely will not work well. Recommend looking for a better value.
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Reviewed in the United States on October 27, 2024
A
Verified Purchase
Ann
Battle Creek, US
★★★★★ 5
Effective
Size: L (up to size 11)-Pink
Fantastic. I put lotion on my feet & wear them when I go to sleep. I often wake up during the night and will remove them to find my feet soft and smooth. They are strong and fit my size 10 womens’ size.
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Reviewed in the United States on March 27, 2026
S
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Stacy
Carnegie, US
★★★★★ 1
The shoe size should be smaller 9 is the max and it is still to tight
Size: M (up to size 9)-Beige, Size: M (up to size 9)-Beige
Very tight had to take off my feet in the middle of the night they were cutting off my circulation.
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Reviewed in the United States on February 17, 2026
M
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michele p.
Birmingham, US
★★★★★ 5
Great product to keep moisture in
Size: M (up to size 9)-Beige
These are so cool. I was skeptical at first. After an at home pedicure I put lotion on and keep these on for about a few hours. The moisture retention, and comfort and fit or absolutely amazing!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2025

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