Pay in installments of $53.74 with
,
and
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 16 - Jul 21
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
MTX TH400.4 Thunder Series 400W RMS Class-D Full-Range 4-Channel AmplifierMTX TH400. 4 Thunder Series 4 Channel Amplifier 400W RMS, Full Range Class D The MTX TH400. 4 is a compact, high performance 4 channel amplifier from the legendary Thunder Series, designed to deliver crystal clear, full range audio to your entire speaker system. Engineered with high efficiency Class D topology, it provides 100 Watts RMS per channel at 2, ensuring your music remains distortion free even at high output levels. Its small footprint allows
MTX TH400.4 Thunder Series 4-Channel Amplifier – 400W RMS, Full-Range Class DThe MTX TH400.4 is a compact, high-performance 4-channel amplifier from the legendary Thunder Series, designed to deliver crystal-clear, full-range audio to your entire speaker system. Engineered with high-efficiency Class D topology, it provides 100 Watts RMS per channel at 2Ω, ensuring your music remains distortion-free even at high output levels. Its small footprint allows for flexible installation in tight spaces, while premium features like Tiffany-style RCA inputs and a built-in clip detection light make it a favorite for audiophiles seeking professional-grade tuning and reliability.
Key Features
- Thunder Series Full-Range 4-Channel Amplifier
-
Power Handling (RMS):
- 100W x 4 @ 2Ω
- 50W x 4 @ 4Ω
- 200W x 2 Bridged @ 4Ω
- Class D Technology: Full-range efficiency with minimal heat and a compact chassis
- Clip Detection Light: Integrated LED indicator to help set the perfect gain and prevent signal clipping
- Tiffany-Style RCA Inputs: Ensures a high-quality, secure connection for superior signal transfer
- Built-in Variable High Pass & Low Pass Crossovers (40Hz – 400Hz)
- Dyno Certified: Includes a certificate proving the amplifier meets or exceeds rated power
- Surface Mount Technology (SMT) for increased resistance to road vibrations
- 10V High-Level Input Compatibility for easy integration with factory head units
- Frequency Response: 20Hz – 20kHz
- Signal-to-Noise Ratio: >98dB
- Dimensions: 6.75" L x 7.0" W x 2.0" H
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
4.5 ★★★★★
Based on 27 reviews
Sort
Product Reviews
★★★★★ 5
Comfortable and stays cool
Color: White-cooling Basic, Size: Queen(Pack of 1)
Great pillow. When i opened it, i noticed a strange smell, i assumed its the smell of whatever they use to make the pillow stay cool. You have to fluff it for a good amount of time to make sure the cooling agent spreads well in the foam. Is what i assumed atleast. Its a perfect amount of softness for me. Pair it with some bamboo pillow cases and you got a good night of sleep
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 9, 2026
★★★★★ 5
BEST, MOST COMFORTABLE PILLOWS EVER!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I've used others.BEST PILLOWS EVER! Firm, cooling and supportive. LOVE THESE!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok.
One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable.
Overall, great quality, comfortable, and worth the purchase.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person.
You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026