Morel Maximo Ultra 402 – Great Looks, Smooth Sound

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The Morel Maximo Ultra 402 is a very impressive pair of 4″ speakers that’s capable of pumping serious bass and reproducing mid-range notes beautifully. The incredible build quality that Morel is known for ensures that these speakers won’t need to be replaced in the future. They’re a little bit more expensive than other 4-inch car speakers in their price point, but they’re definitely worthwhile.


  • Very smooth and accurate mid-range
  • Good bass quality with minimal distortion
  • The installation process is simple and easy
  • Great build quality that will last for years


  • Pretty expensive pair of speakers
  • Low sensitivity and poor low-frequency range


While I do have my issues with the Maximo Ultra 402, I never cease to be impressed by More’s standards for quality. Every time I get my hands on one of Morel’s spekers, I just take a minute to appreciate how solid and aesthetically-pleasing their designs always look. Now enough with the drooling and let’s break these bad boys down.

The Maximo Ultra’s frequency range starts 75 Hz and ends at 20 kHz, so clearly these speakers will perform very well when it comes to mid-range frequencies. However, the performance in the low-frequency range is very disappointing. That doesn’t mean that these speakers can’t deliver some killer bass, it’ll just lack fidelity to the original sound.

Both the treated paper composite woofer cone and the soft dome tweeter do a good job of delivering a well-rounded and well-balanced range of sound and can handle up to 45 watts of RMS power. Morel also includes its very own built-in MXR crossover configuration to deliver a nice blend of the highs and lows for a great stereo image.

One thing that myself and many others love about high-quality speakers is the ability to adjust the volume to our liking, which is something that seems to fall short with the Maximo Ultra 402. I’m not saying that your music will be on full blast all day long, but compared to speakers that have a higher sensitivity rate, this pair of speakers is lacking.

The Maximo Ultra 402 package includes 2 grilles, grille frames, and a grille putty, which is pretty nice to see since we’re all used to manufacturers always saying that factory grilles will do.

For a pair of speakers at this price point, I would have loved to see them having more power handling and better low-frequency range. But overall, the Maximo Ultra 402 does the Morel brand justice.

Features & Specifications

  • Design: 2-way speakers
  • Speaker Size: 4″
  • RMS Power: 45 Watt
  • Peak Power: 100 Watt
  • Sensitivity: 87.5 dB at 2.83 V
  • Frequency Response: 75 – 20,000 Hz
  • Mounting Depth: 2″

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