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Ships within 48 hours · Estimated delivery Jul 21 - Jul 26
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Description
SounDigital - 400.4 XPAt the pinnacle of performance and innovation, we proudly present the XP linean impressive evolution in your audio experience. Designed with state of the art technology and enhanced by artificial intelligence, XP amplifiers embody the core DNA of SounDigital innovation, excellence, and precision. The XP line delivers exceptional audio performance, combining advanced engineering with superior components to ensure reliability and remarkably faithful
At the pinnacle of performance and innovation, we proudly present the XP line—an impressive evolution in your audio experience. Designed with state-of-the-art technology and enhanced by artificial intelligence, XP amplifiers embody the core DNA of SounDigital innovation, excellence, and precision.
The XP line delivers exceptional audio performance, combining advanced engineering with superior components to ensure reliability and remarkably faithful sound clarity. Its compact and versatile design allows seamless integration into a wide range of applications, meeting diverse needs with efficiency and practicality.
Whether you’re an audiophile or a casual listener, XP amplifiers elevate your audio experience, striking the perfect balance between cutting-edge technology and exceptional quality. With the XP line, hear sound as it was meant to be heard.
SD 400.4 XP – 4Ω
Power @ 4Ω: 4 X 66 WRMS
Power @ 2Ω: 4 X 100 WRMS
Power @ 1Ω: N/A
Bridge Power @ 8Ω: 2 X 132 WRMS
Bridge Power @ 4Ω: 2 X 200 WRMS
Bridge Power @ 2Ω: N/A
Operating Voltage: 9V – 16V
Current Draw (Music): 17 A
Current Draw (Max): 34 A
Recommended Fuse (Music): 20 A
Frequency Response (-3dB): 5Hz – 36kHz
SNR: 96dB
Crossover HPF: 45Hz – 850Hz
Crossover LPF: 45Hz – 850Hz
THD + N (10% Rated Power): 0.1%
Recommended Battery: 40aH
Power Cable: 7AWG
Speaker Cable: 15AWG
Product Dimensions: 4.69 x 4.44 x 2.0 in
Product Dimensions: 11.9 x 11.3 x 5.0 cm
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
4.3 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Decrease in black heads. Smoother skin!
Size: 1.01 Fl Oz (Pack of 1), Size: 1.01 Fl Oz (Pack of 1)
I’ve never used such a great pore minimizer for this reasonable of a price. I love how smooth and clean it makes my face feel. I’ve been using it twice a day after cleansing my skin. Noticeable difference in visible pores and decrease in black heads on my nose and chin.
Highly recommend!! Come on with this price, you have nothing to lose.
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Reviewed in the United States on May 26, 2026
★★★★★ 3
Serum does not work to reduce pore size
Size: 1.01 Fl Oz (Pack of 1)
While this serum does somewhat smooth skin it does absolutely nothing to reduce pore size which is primarily genetic and is resistant to most products. Not worth the money.
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Reviewed in the United States on April 23, 2026
★★★★★ 5
Lyft light
Color: Style A：Pink
I’m a Lyft driver it’s reasonable price easy to put together very bright and the quality is decent
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Reviewed in the United States on May 23, 2026
★★★★★ 5
Product is perfect
Color: Style A：Pink
Works Great. 👍🏼
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Great product.
Color: Style A：Pink
Great quality. The light is bright and it’s easy to install.
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Reviewed in the United States on May 26, 2026