ESX QS-FOUR - 4 Channel Amplifier
SKU: 99576356813

ESX QS-FOUR - 4 Channel Amplifier

Sale price$171.90 Regular price$191.00
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Description

ESX QS-FOUR - 4 Channel AmplifierWith an impressive 2 x 95 watts RMS at 2 , the little QUANTUM QS TWO is anything but slim. On the contrary, it drives loudspeaker systems with 4, 3 or 2 impedance without difficulty and remains very stable even under critical loads. With a mono bridge output of 190 watts RMS at 4 , it can also elicit a lot of bass from subwoofers. Incidentally, it impresses with its high end sound: thanks to the huge bandwidth of up to 60,000 Hz and a sensationally

With an impressive 2 x 95 watts RMS at 2 Ω, the little QUANTUM QS-TWO is anything but slim. On the contrary, it drives loudspeaker systems with 4, 3 or 2 Ω impedance without difficulty and remains very stable even under critical loads. With a mono bridge output of 190 watts RMS at 4 Ω, it can also elicit a lot of bass from subwoofers. Incidentally, it impresses with its high-end sound: thanks to the huge bandwidth of up to 60,000 Hz and a sensationally low distortion factor of <0.007% (THD + N @ 5W), the QS-TWO is way ahead.

ESX masters the construction of Class D power amplifiers so well that the QS-TWO can come up with a sensational efficiency of up to 90% and EMC interference-free. The modern technology saves electricity, relieves the vehicle's electrical system and protects the high-quality components from overheating. Thanks to the high degree of efficiency, no thick power cables need to be pulled. If you want it to be very easy, you can use the QS-TWO-ISO, which can be supplied via a pre-assembled ISO cable harness, e.g. can be connected behind the car radio.

  • Efficient Class D Amplifier with ultra-compact dimensions
  • Heavy die-cast Heatsink with perfect cooling characteristics
  • Auto Turn-On Function
  • High Level Inputs with Error Protection System (EPS®)
  • Start/Stop Ready
  • RCA Inputs (via Molex)
  • Stereo RCA Output for e.g. active Subwoofers
  • HPF/LPF switchable
  • Perfect for HD-Audio

Specifications

  • 4-Channel Class D Plug+Play Nano Digital Amplifier
  • 4 x 35/45/60 Watts RMS @ 4/3/2 Ω
  • 2 x 120 Watts RMS @ 4 Ω bridged
  • 2 x HPF/LPF @ 80 Hz
  • THD+N @ 5W/RMS < 0,007%
  • Frequency Range 10 Hz - 60 kHz
  • Dimensions 90 x 35 x 80 mm
  • Efficiency up to 90%
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: 99576356813

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4.3 ★★★★★
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Aisha Yousaf
Waukegan, US
★★★★★ 5
The Natural Way to Better Sleep.
Color: Soft, Size: Standard(24"×16"×5.5"), Color: Soft, Size: Standard(24"×16"×5.5")
After trying out several latex over the years, the Talatex Talalay 100 stands out for its luxurious comfort, quality materials, and overall sleep experience. Made from 100% natural Talalay latex, it offers a perfect balance of softness and support. Comfort & Support: The Talalay latex feels incredibly buoyant yet plush. I found it especially beneficial for relieving neck pain. Temperature Regulation: One of the best aspects is its breathability. Latex naturally sleeps cooler than other foams. Eco-Friendliness: Another big plus is that it’s made from natural latex with no synthetic additives, making it a healthier and more environmentally friendly choice. It’s also hypoallergenic, which is great for allergy sufferers. Verdict: If you're looking for a premium latex sleep surface that delivers both comfort and longevity, the Talatex Talalay 100 is a solid investment. It’s not the cheapest option out there, but the quality and sleep experience justify the price.
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Reviewed in the United States on April 14, 2025
K
Verified Purchase
KJ
Natrona Heights, US
★★★★★ 5
Finally sleeping well again
Color: Soft, Size: Standard(24"×16"×5.5"), Color: Soft, Size: Standard(24"×16"×5.5")
Got the standard soft and the height is just right - perfect mix of plush and supportive. My neck pain is basically gone. Love that it stays cool through the night thanks to the little vent holes, and the Tencel cover feels super soft. Holds its shape really well too, no flattening. Packaging felt like a gift. Worth every penny.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
K
Verified Purchase
Kimba
Cuba, US
★★★★★ 5
Natural Dunlop Latex Topper Has Multiple Uses
Size: Twin XL 2"
This is a well made, high quality, 2” thick piece of all-natural latex. You can use it on top of any bed to provide a nice, comfortable mattress topper that has a medium-firm feel to it. It gives good support for those who sleep on their back and on their sides. The latex topper springs back and sleeps cooler than memory foam toppers, which compress and generally sleep hot. Latex toppers cost more upfront than memory foam toppers, but they can last twice as long. I built a custom-made all-natural latex bed that was too soft and didn’t provide enough support. I removed a 2” thick piece of ultra soft (#14) Talalay latex inside the bed and replaced it with this 2” thick piece of Dunlop latex for more support. I then used the Talalay latex on top as a mattress topper and now my bed is perfect! Once you’ve slept on all- natural latex, you’ll never want to go back to artificial memory foam.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
Z
Verified Purchase
Zk
Waukegan, US
★★★★★ 5
Discovered latex and thrilled
Size: Queen
Bought a Beautyrest mattress in late 2021 that now is uncomfortable and has dips. Beautyrest would reject the 10 year warranty due to a single stain on mattress (based on their policy), so I didn't even bother. So, I pondered if I should order a new one and which one. In the process I found out latex toppers may save the day. Talatex medium firm mattress in queen size was received within a week and a half and installed on top of existing Beautyrest mattress. Since then, no pain in hips, no sweating at night, no neck problems. My daughter tested it one night with me, and since then wants to sleep on my bed and not hers, so this is really reviewed by two people. Excellent product!! Has a bounce but you don't sink in it (two mattresses ago, I had a 13" high end high density visco elastic memory foam mattress where sinking into it happened). When I can afford, I will buy a 4" latex topper firm and install that under the existing 2" Talatex medium firm over a slatted base. I'll do away completely w/ the mattress I'm using now.
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Reviewed in the United States on May 18, 2024
R
Verified Purchase
Rockypines
Alexandria, US
★★★★★ 3
Does not provide much pressure relief
Size: Queen
It does keep you cooler/neutral. It needs to be a little denser. When you are on it, it goes pretty flat. It does help some but my hip needs a little more support that this offers. Be aware, the cover has a coating of fire retardant. We asked them to send one without the toxic chemicals. (Personal choice)
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Reviewed in the United States on September 5, 2024

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