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Massive Audio SX6 Review – 6.5

This will be my first product review. This is my first hands-on test with Massive Audio speakers and they are installed in my personal vehicle, not a demo board. The car has no additional sound damping and the only other upgrade is an Alpine CD player. Let’s continue with the review.

Massive Audio SX6 Specifications

  • Speaker Size: 6.25 “
  • Tweeter – 20mm Silk Nomax Tweeter
  • Cone – Poly Mica
  • Sensitivity: 88.7 dB
  • Frequency response: 63 Hz – 21 KHz
  • RMS power: 10-60 watts
  • Maximum power: 180W
  • Impedance: 4 ohms
  • Crossover – 6dB internal
  • Basket – Stamped Steel
  • Depth: 1.66 “

What you get in the box is an instruction manual, a warranty registration card, a pack of matching sheet metal screws and clips, speaker grilles, and the speakers themselves. The grilles have a sleek look and complement the sleek dark and smooth appearance of the speakers. A couple of notes on speaker design. As the title of this article says, these are slim speakers. At just 1.6 ″ inches, they can fit in any door, which seems to be necessary for some European cars. For comparison, this is barely thicker than your closed laptop. Another design highlight is the “point source” driver settings. This is evident in the placement of the tweeter flush with the center of the woofer cone. The benefit of this is that the high and midrange notes start in the same linear plane, which means there is no delay like you normally get from coaxial speakers. It’s not something an ordinary listener is going to notice compared to a traditional pole-mounted tweeter, but it shows Massive Audio’s focus on serious sound quality at an affordable price.

These speakers are CEA certified, which means you can compare them head-to-head with other CEA certified speakers for their rated thermal power handling. I have them powered by one of the older Alpine V-Power head units, which has an extra robust 27W x 4 RMS internal amplifier. It’s enough juice for the SX6 cones to hit hard. I imagine these would work quite well on a 50×2 amp.

I only have an hour of listening with these little beauties, but I am very impressed. The tweeters are exceptionally musical and detailed for a low-cost speaker. I’ve had them playing right in front of my face, which is usually a bad idea since most of the tweeters I’ve heard aren’t the nicest on axis. I have yet to find any music that makes these speakers feel fatigued at high volume. I was very pleased to find that I could clearly hear different cymbals in a loud passage on an Anberlin track from their latest album. The new level of detail is exactly what you wanted, and these speakers deliver detail in spades. Mid-range performance is excellent too. They can go deep with synthesized instruments, as heard on Radiohead’s Kid A. On a very heavy percussion album, Living Sacrifice’s The Hammering Process, with two drummers, each instrument was different.

I have plans to replace these speakers and move them to the rear deck, but they will definitely have a place in my car for a long time to come. They sell for $ 99.95. I will conclude this review with a list of pros and cons.

Pros

  • Large size, slim enough to fit any application
  • Amazing clarity for the money
  • Attractive: too bad they are usually hidden behind a panel

Cons

  • Wire cables are not included
  • More affected by sound-blocking legs than factory speakers

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