All Genuine Eminence loudspeakers are supported by a 7-year warranty against any manufacturer’s defect in the continental United States.
The Tour Grade line-up represents Eminence's top-of-the-line subwoofers. The NSW6021-6 is the highest excursion 21" that we carry (and it may be the highest excursion 21" pro-audio driver period). It is capable of extreme amounts of low end output, even exceeding the venerable LaVoce SAN214.50 by approximately 2dB.
The NSW6021-6 works well in all our 21" cabs from the MBM-21 to the Devastator.
In order to realize its full potential, we recommend a high power amplifier, such as the SpeakerPower SP1-4000-HT/SP1-6000-HT plate amps or the SP2-8000-HT/SP2-12000-HT rack amps.