PRV Audio 3MR40-NDY-4 MR Neodymium Series 3" 40W RMS (80W Peak Power Handling) 4 Ohm, Midrange Car Speaker (Single)
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Tiny Frame, Big Midrange Energy
If you’re working with tight spaces but still want real audio performance, the PRV Audio 3MR40-NDY-4 Midrange Car Speaker is built to solve that problem without compromise. Its ultra compact 3 inch frame lets you mount it in doors, pillars, or custom pods where bigger speakers simply won’t fit. Despite the small size, it still delivers a serious upgrade over factory sound, giving your system a sharper and more defined midrange presence.
Neodymium Power That Stays Efficient and Clean
At the heart of this speaker is a neodymium motor structure that delivers strong magnetic control while keeping weight extremely low. That means better efficiency, easier installation, and tighter sound reproduction even in compact builds. With 91 dB sensitivity, it produces strong volume using low to moderate power, making it perfect for factory upgrades or simple aftermarket setups that still need to get loud and clear.
Full Range Detail Built for Everyday Listening
This midrange covers a wide 120 Hz to 20,000 Hz frequency range, giving you clean vocals and detailed highs that bring your music to life. The 0.75 inch CCAW voice coil keeps things lightweight while maintaining thermal stability for long listening sessions. Rated at 40 watts RMS, it is designed for reliable daily use, especially when paired with the recommended 160 Hz high pass crossover for clean output and protection. With 4 ohm compatibility and a shallow 1.59 inch mounting depth, it integrates easily into almost any system while delivering precise, controlled sound that upgrades your entire listening experience.
Frequently Asked Questions (FAQ)
- • Why does my 3MR40-NDY-4 sound distorted at higher volume?
The most common causes are amplifier clipping, incorrect gain settings, or running the speaker without the recommended 160 Hz high pass crossover. Keeping the crossover properly set and using clean amplifier power helps prevent distortion.
- • Can I use the 3MR40-NDY-4 without a tweeter?
Yes. The speaker has a wide frequency response of 120 Hz to 20,000 Hz, allowing it to reproduce vocals and high frequencies on its own. However, adding a dedicated tweeter can improve overall detail in larger or higher output systems.
- • Why isn't my 3MR40-NDY-4 producing much bass?
This is normal. The 3MR40-NDY-4 is designed as a compact full range and midrange speaker, not a subwoofer. For strong bass performance, pair it with a dedicated midbass driver or subwoofer.
- • Is the 3MR40-NDY-4 good for factory car audio upgrades?
Yes. Many installers choose it for dashboards, A pillars, and compact locations because of its shallow mounting depth and lightweight neodymium motor, making installation easier where space is limited.
- • My speaker has no sound after installation. What should I check first?
Start by checking the speaker wiring, amplifier output, fuse, source unit, and polarity. Incorrect wiring or a muted amplifier is often the cause of no audio.
- • Can this speaker handle more than its rated 40 Watts RMS?
Some experienced users run higher amplifier power with proper crossover settings and clean signals, but PRV recommends following the rated power specifications to avoid damage and maintain reliability.
- • Will the 3MR40-NDY-4 fit in tight installation spaces?
Yes. It was specifically designed for compact applications with a mounting depth of only 1.59 inches, making it suitable for dashboards, custom panels, portable speakers, and line arrays.
- • Why does my speaker sound weak or thin after installation?
Incorrect speaker polarity, improper enclosure design, or crossover settings that are too high can reduce output and cause weak sound. Double check the wiring and crossover configuration.
- • Is the 3MR40-NDY-4 sold individually or as a pair?
The PRV Audio 3MR40-NDY-4 is sold as a single speaker. If you're building a stereo system, you'll need to purchase two units.
- • Is the 3MR40-NDY-4 loud enough for daily driving?
Yes. Despite its compact 3 inch size, its 91 dB sensitivity and efficient neodymium motor provide surprisingly strong output for daily driving, portable speakers, and custom car audio systems.
- Diameter : 3 Inch
- Sensitivity : 91 dB
- Impedance : 4 Ohm
- Frequency Response : 120-20000 Hz
- Peak Power Handling : 80 Watts
- RMS Power Handling : 40 Watts
Features:
- Ultra Compact 3 Inch Frame: Built for tight installation environments, allowing flexible placement in doors, pillars, and custom pods without adding bulk.
- High Efficiency Output: 91 dB sensitivity ensures strong volume output even with low to moderate amplifier power, ideal for factory upgrade systems.
- Wide Full Range Response: 120 Hz to 20,000 Hz frequency range provides clear mids and detailed highs suitable for full-range or midrange applications.
- Neodymium Motor Structure: Strong neodymium magnetic assembly enhances efficiency and control while keeping overall weight extremely low.
- Low Depth Installation Profile: Shallow mounting depth of 1.59 inches allows easy fitment in compact enclosures and restricted mounting locations.
- 0.75 Inch CCAW Voice Coil: Lightweight voice coil design improves thermal stability and maintains consistent audio performance during extended use.
- 40 Watt RMS Handling: Designed to handle 40 watts continuous program power for reliable daily listening and system integration.
- Recommended Crossover Design: Optimized for 160 Hz high pass at 12 dB per octave to ensure clean midrange output and driver protection.
- 4 Ohm System Compatibility: Standard impedance supports easy integration with a wide range of aftermarket amplifiers and multi speaker setups.
Specifications:
- Nominal Diameter: 3″ (76.2 mm)
- Nominal Impedance: 4 Ohm
- Nominal Power Handling: 20 Watts
- Continuous Program Power (RMS): 40 Watts
- Max Peak Power: 80 Watts
- Sensitivity (2.00V at 1m): 91 dB
- Recommended High-Pass Crossover: 160Hz, 12dB per octave
- Frequency Response: 120Hz – 20,000Hz
- Voice Coil Diameter: 0.75″ (19 mm)
- Voice Coil Wire: CCAW
- Voice Coil Winding Depth: 4.8 mm
- Former Material: Polyimide
- Magnetic Gap Depth: 4 mm
- Frame Material: Stamped Steel
- UPC: 810075522921
- Weight: 1
- Authorized Internet Dealer
Warranty: 1 Year Warranty.
This item is accompanied by a manufacturer's warranty. If it is found to be defective, it may be returned to OnlineCarstereo.com for replacement within 1 Year from the original date of purchase with proper return authorization.
