When designing systems with W7AE drivers, it is very important to achieve a good power match between the subwoofer amplifier and the subwoofer driver's capabilities. The power levels listed in the
above chart represent continuous (RMS) amplifier power per woofer and assume that the user will regularly make full use of that power
without drastically overdriving (clipping) the amplifier(s). Make
sure you factor system impedance and the total number of subwoofers into your calculations. Adhering to these power recommendations will result in systems that are both reliable and enjoyable.
RECOMMENDED CONTINUOUS RMS POWER RANGE FOR ONE SUBWOOFER DRIVER:
Please consult the input sensitivity setting information on page 14 of this book.
250W500W1000W2000W4000W125W
13W7AE
12W7AE
10W7AE
8W7AE
Thank you for purchasing a JLAudio W7AE subwoofer driver. The
W7AE embodies JLAudio’s commitment to pushing the envelope
of speaker technology, with eight patented technologies, a design
patent and a completely unique set of component parts. Each
W7AE model has been meticulously engineered to reproduce
sub-bass with extreme fidelity at any volume level, provided it
is installed and tuned properly. Please review the information in
this document carefully so as to maximize your enjoyment of the
W7AE’s capabilities.
Two enclosure recommendations are listed for each model,
one sealed and one ported. In most cases, the sealed enclosure
design will give you the best overall sound quality and take up the
least space in your vehicle. The ported enclosure design will deliver
additional output over the sealed enclosure (about 3 - 4 dB more)
and will also maintain excellent sound quality, but it will require
significantly more space to install. The recommended ported
enclosure is not designed for peaky “competition SPL” performance,
but rather for music listening. It will be very loud and sound
extremely good when set up properly.
In addition to the enclosure recommendations, we also
provide recommended amplifier settings for JL Audio amplifiers
commonly used with W7AE’s. Some of this information is also
applicable with other brands of amplifiers (like crossover points
and slopes), some is not (like the voltage levels specified for input
sensitivity settings). Please note that W7AE’s rarely require any
equalization to produce smooth frequency response. If you have
an equalizer in your system (or one is included in your head unit
or amplifier), defeat all bands below 125 Hz before dialing in your
new system settings.
For optimum sub-bass performance, the amplifier input
sensitivity must be adjusted to avoid excessive distortion (clipping)
of the amplifier output. Overly high input sensitivity settings
result in no additional clean output but will result in poor sound
quality and reduced speaker reliability. With W7AE subwoofers,
a clipped amplifier output may manifest itself audibly as a low-
level “mechanical” sound coming from the speakers. Proper input
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