SKU: 99576356813

ESX QS-FOUR - 4 Channel Amplifier

Sale price$171.90 Regular price$191.00
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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8

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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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K
Verified Purchase
Kara Riba
Lexington, US
★★★★★ 5
Durable & fun for aggressive chewers.
Color: Yellow
Holding up very well for our aggressive chewer. Squeaker is still intact & our 70-pound pittie breed often chooses this toy to play with over others. Pittie approved.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
A
Verified Purchase
Anna Sambursky
Battle Creek, US
★★★★★ 1
Not at all indestructible
It was well loved while it lasted. But this fish was delivered on Saturday and I’m writing my review on Tuesday morning. So we are looking at roughly 3 days of play. I bought the fish toy and almost immediately the fins were ripped off. But I figured as long as the body stayed intact we’d be good. But it wasn’t long before the body was ripped open as well. Very disappointed. Evidently my dog’s bite is more damaging than a bullet? I’m sure it will last all in all a week before there’s no saving it anymore. Will look for other better toys for my super chewer.
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Reviewed in the United States on September 26, 2023
J
Verified Purchase
Jane
Massapequa, US
★★★★★ 5
Lasted the longest of any toy we bought yet!
Very happy with the toys we bought so far! The owl didn’t last as long as the raccoon. The raccoon lost his ear pretty quickly, but the rest of the toy has held up for almost a month now. That is *significantly* longer than any other stuffed animal toy we’ve tried so far. Pretty much any other stuffed animal toy we’ve tried from Kong or elsewhere has fallen apart in a few days. This is a good toy for sharp puppy teeth! Also such cute designs. Just bought the Mallard, excited to see how it goes!
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Reviewed in the United States on October 9, 2023
R
Verified Purchase
Rachel WC
Draper, US
★★★★★ 3
Not Pitty Proof..
Color: Bear, Color: Bear
The toy itself was very detailed and cute, But my potty had the toy about 10 mins and she took the leg off .. it’s a bit pricey. Since it didn’t last long so .. if you have pitty save your money and don’t buy it ..
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Reviewed in the United States on March 6, 2026
M
Verified Purchase
Mandi Cumbo
Cuba, US
★★★★★ 5
The only plush toys that last for my girl!
These are awesome! I have a 4 year old doberman and she destroys most plush toys in a matter of minutes. These are the only ones that last and are worth the money! Even once she does pull the stuffing out, the shell of the toy is still mostly intact and she'll play with that for a long time as well!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 18, 2024

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