the "burp" RMS level. It is the system designer that is responsible for choosing equipment
that works in harmony together - speaker, enclosure, amplifier and source unit as well as
setup. There are vast differences in the final power handling of a speaker system
depending on these factors, and "raw driver" theoretical power limits are only one factor in
that final number. Heat management is the responsibility of the system designer, therefore,
and we will not accept warranty claims for burned coils under any circumstances. A burned
coil is always because of either bad setup (distortion) or bad heat management (too much
power for too long - choose a higher subsonic filter level, a lower crossover low pass point
or allow the hardware to cool down between periods of extreme load.) Lets face it, we all
want to run with a 10Hz subsonic in a massive enclosure and do huge numbers easily but
that's not possible in every case. You have to set expectations accordingly. A race engine
might last 2 hours at the absolute maximum level of performance it is capable of. The same
engine running a lower state of tune might last many thousands of miles on the road. That's
the same engine in a different situation with different setup. Our speakers are no different
than this and the longevity will vary in a similar way depending on how close to their
thermal and mechanical limits they are run.
The first consideration is enclosure design. This is a complicated and technical subject. You
can use our recommended box design where we quote one, or approach your distributor for
advice. Please do not guess the box size as it is a very important part of your success with
the product. For the construction of the enclosure we recomment the use of MDF or
Weather Proof Ply Board (WBP) in 18mm thickness as a minimum. Do not construct bass
boxes from chip board. Improved performance will result from thicker box material - either
