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- USA
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
PRV Audio QS400.4 2 Ohm QS Series Class D 4-Channel Full-Range Car Amplifier 4 x 100W RMS @ 2ΩPRV Audio QS400. 4 2 OHM Full Range Class D 4 Channel Amplifier 400 Watts RMS Compact, efficient, and powerful, the QS400. 4 2 OHM is the perfect solution for building a clean multi channel system. Whether you're powering midranges, tweeters, or a combination of both, this amplifier delivers clean, full range output with high efficiency and low distortion. Class D full range 4 channel amplifier 4x100W RMS @ 2 Ohm 4x60W RMS @ 4 Ohm Bridgeable: 2x200W
PRV Audio QS400.4 2 OHM – Full-Range Class D 4-Channel Amplifier – 400 Watts RMSCompact, efficient, and powerful, the QS400.4 2 OHM is the perfect solution for building a clean multi-channel system. Whether you're powering midranges, tweeters, or a combination of both, this amplifier delivers clean, full-range output with high efficiency and low distortion.
- Class D full-range 4-channel amplifier
- 4x100W RMS @ 2 Ohm • 4x60W RMS @ 4 Ohm
- Bridgeable: 2x200W RMS @ 4 Ohm
- Frequency response: 20Hz–22kHz • S/N Ratio: >90dB
- High and low-level inputs with clip limiter
- Thermal, overload, and short circuit protection
- Proudly designed and manufactured in Brazil
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
4.2 ★★★★★
Based on 690 reviews
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Product Reviews
★★★★★ 5
Car part
Exact fit
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Reviewed in the United States on January 19, 2026
★★★★★ 5
Perfect Fit for Full Cooling System Overhaul on BMW 330xi
I ordered this Engine Coolant Hose (part #11537545890) for my 2006 BMW 330xi as part of a comprehensive cooling system overhaul. Along with this hose, I had my mechanic replace the thermostat, water pump, radiator, expansion tank, and all other related hoses.
This hose fit exactly as expected—no issues during installation. It’s been three weeks since the job was completed, and everything is performing flawlessly. No leaks, no warning lights, and the engine temperature remains stable under all driving conditions.
Although this is not a genuine OEM part, the quality appears solid and it matched up perfectly with the original in terms of length, shape, and connector alignment. For anyone looking to refresh their aging BMW’s cooling system, this hose is a reliable and cost-effective option. Just be sure to verify the part number for compatibility before purchasing.
Highly recommended if you’re doing preventive maintenance or replacing a failed hose as part of a larger cooling system repair.
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Reviewed in the United States on August 3, 2025
★★★★★ 5
Highly recommend
Perfect fit for my Mercedes C300 V6
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Reviewed in the United States on March 1, 2026
★★★★★ 5
good quality
easy to install, works great , good value
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Great price Great product
Great price Great product
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Reviewed in the United States on February 27, 2026