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- USA
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Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
ESX QM500.4 - 4 Channel AmplifierSpecifications 4 Channel Class D Mini Digital Amplifier 4 x 80 125 Watts RMS @ 4 2 2 x 250 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 Bandpass Mode Dimensions 220 x 51 x 362 mm Efficiency up to 83% Features Advanced Class D Technology with very high Efficiency Selected and audiophile tuned Components Compact Aluminum Heatsink and lateral Die cast Parts High Level Inputs with Error
Specifications
- 4-Channel Class D Mini Digital Amplifier
- 4 x 80/125 Watts RMS @ 4/2 Ω
- 2 x 250 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
- Bandpass Mode
- Dimensions 220 x 51 x 362 mm
- Efficiency up to 83%
Features
- Advanced Class D Technology with very high Efficiency
- Selected and audiophile tuned Components
- Compact Aluminum Heatsink and 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
- RCA & High Level Inputs (via Molex)
- Compact Bass Remote Controller
Digital amplifier power has never been more compact and affordable: With a size of just 190 x 35 x 102 mm, the three new ESX QUANTUM QM miniature power plants are convincing all along the line. The QM amps offer state-of-the-art technology in a very small space and are all solidly constructed. All three amps are based on the somewhat larger sibling models of the ESX QUANTUM QL series, only a bit more compact and much easier to install. Thanks to the high level inputs including EPS and the automatic turn-on function, they are also perfectly suited for integration in factory sound systems. Each model is also equipped with a compact bass level 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:
- 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
4.8 ★★★★★
Based on 2082 reviews
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Product Reviews
★★★★★ 5
Easy to find
Color: Pink Sand
Perfect fit looks great
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Reviewed in the United States on March 21, 2026
★★★★★ 5
Great product
Color: Purple Glow
Great product.
Nice rubber on top and bottom to prevent breaking if dropped.
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Reviewed in the United States on May 18, 2026
★★★★★ 5
I love the shape, weight and color
Color: Green Glow in the Dark, Color: Green Glow in the Dark
I think this is a much better ergonomic shape. Most covers keep the same basic shape of the remote. My remote had the four stacked buttons instead of 2x2. I ripped them all off because I kept accidentally switching over to Netflix or espn in the middle of watching something, and that's the only reason this fits. It's made only for 4x4. At least 1 of the buttons would be covered.
The volume buttons are almost flush, so it's kinda hard to tell they're there, but they function very well.
I chose the color for the contrast on my dark grey sheets and it works really well. And it really glows ok tje dark. It didn't look like it didn't the day I bought it l, but it had to charge it the light or it wasn't dark enough.
It looks weird where ther holes are because of the remotes roundish shape. But the more I use it the more I really like the shape coupled with the weight if it. I personally like the squared off shape and the honeycomb so much. And if I upgrade to a bigger roku tv in a couple months I can keep using this cover.
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Reviewed in the United States on April 27, 2024
★★★★★ 5
Must have for Apple Remote!!
Color: Blue, Color: Blue
I regret not buying this sooner! As most of you know, the Apple TV remote is a slippery little thing, and this case is perfect! Color is bright so you can find your remote, it has a nerve grip so it’s no longer slippery, and the silicon protects it from drops. It doesn’t hinder the buttons and goes on and off super easily. Great investment for the remote.
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Reviewed in the United States on January 11, 2026
★★★★★ 5
How did I watch TV without one?
Color: blue-glow
We stayed at an AirBnB recently and the TV was set up to use the tiny, thin AppleTV remote. We have the same remote and I constantly lose it or drop it or brush the touchpad when I don’t mean to. When I saw that they had wrapped their remote in this thin silicone “case”, I went on Amazon and bought one immediately. It arrived right after we got home and took all of 10 seconds to put on the remote. It fits snuggly, but not so much that you have to worry about damaging the remote putting the case on or taking it off. It doesn’t cover any of the buttons or the plug and gives the remote a bit more heft. The ribbing and “stickiness” of the silicone makes it easier to pick up with my big fingers. Now the remote is easier to use (partly because it’s easier to pick up and to hold). It’s also harder to lose, because it makes the remote feel a bit larger, and (ours at least) is in a cool, translucent, day-glo green, that glows in the dark (sort of). Win-win-win...
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Reviewed in the United States on October 10, 2020