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Average Customer Rating is 4.7 out of 5 stars:
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Average Attributes Rating:
| Durability | | 4.7 |
| Value | | 4.3 |
| Features | | 4.7 |
| Design | | 4.7 |
| Usability | | 5.0 |
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Most Helpful Customer Reviews:
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Review by
Dennis from West Jordan, UT
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The birthsheet on my MTX amp says 1308 watts, so I set the gain for 51.2 volts at max volume at 40hz. With a 2 ohm DC nominal load, the average AC wattage (RootMeanSquare) dissipated on my subs voice coil at 40hz is 1308. This sub has taken it, and stays cool doing it after break in. I've recorded temps as high (with non contact LASER thermometer) as 212 degrees (boiling point of water) on the plastic of the voice coil without failure. Now, with same Bass Mechanix after break in, the same area measures around 120 degrees. I have melted on of these voice coils, but that was running the amp with too much gain, clipping the signal. On a road trip, after my amp failed, and replaced with MTX but no volt meter or oscilloscope to set up. One piece of advice, after abuse and over tightening the 2 screws that conduct the current to the voice coil and also secure the voice coil, the solder joint between the hollow rivets that are the screw holes that connect to the flat voice coil leads will fail. You just need a good solder gun, and heat up the flat part of the lead (after fluxing the rivet), and get some solder to suck between the rivet and flat lead. Better than new. Also hex screws can strip, cheap China, so get a high quality 2.5mm Allen head screw gun bit and use a 1/4 inch drive socket and socket driver handle (looks like screwdriver handle). Easier to gauge ultimate torque being applied with screwdriver handle. I have used threadlocker. You need high temp cause the two that conduct electricity for the voice coil consequently also conduct heat, so anything but high temp fails. Unfortunately, high temp also means high strength. I had to cut my last cone apart to get my cutoff tool in to cut shaft off Allen head voice coil fastener so I could remove a functioning voice coil.
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Review by
FxUy from Doral, FL
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I bought two additional VC's just to be safe, as I'm feeding the SPG555 more watts rms than it's rating (1380wrms). It's great to be able to change voice coils without opening the box or taking the sub apart.
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Review by
Beiti from Frankfurt, Germany
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Easy to use! It does what it got to do!
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