User Manual

Comparing the Sound of the Three Boxes
 The sealed box has a flatter response in the car
 The vented box plays almost 6dB louder with the same
power as the sealed box! That’s equivalent to four times
the amplifier power.
 More amplifier power can be applied to the vented box
than the sealed or bandpass box! Double the RMS power
rating is often OK. That’s 9dB louder in the car!

The bandpass box plays louder than the vented box, but
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
The bandpass box plays louder than the vented box, but
only at one frequency.
 Vented boxes are ALWAYS the best choice for best
sound if the customer can devote a little more space.