What is BassXT?
Audyssey BassXT enables low frequency drivers to produce deeper bass by intelligently monitoring incoming audio signals and extending driver performance to its maximum safe limits at all volume levels. With a BassXT-enabled system, small woofers sound big, and big woofers sound bigger.
Why is BassXT needed?
Small subwoofers are desirable because of their small footprint, but this also makes it difficult to reproduce very low bass sounds. Traditionally, the only way to extend the bass response to lower frequencies would be to invest in a subwoofer with a bigger driver in a bigger enclosure. BassXT enables smaller drivers and enclosures to reproduce very low bass sounds by dynamically monitoring the low frequency signals and constantly pushing the speaker to its maximum capability.
How does BassXT work?
Before a speaker system comes to market, Audyssey works closely with the manufacturer to create a precise model for the driver and the enclosure of the subwoofer or full-range speaker. Based on this model, BassXT is able to accurately monitor the level and frequency content of the signal. The content is continuously monitored so that both soft and loud passages extend the driver to near maximum excursion. This enables the system to produce lower frequencies than would be possible with a traditional system of the same size.
Low frequency playback example of the same small subwoofer at three volume levels
At each volume level, BassXT expands the low frequency performance by delivering much deeper bass
Isn't BassXT just another "bass boost" method?
No. Traditional methods merely attempt to trick your ears into thinking there is bass at lower frequencies. When you push a "Bass Boost" setting on some audio systems, specific lower frequencies may appear perceptually louder, but the range of frequencies you are hearing is not actually extended any lower. You are not getting deeper, natural bass as you do with BassXT. Further, these other systems are not customized for your exact driver, but are generic for any speaker system. BassXT is specifically calibrated to enhance the physical bass response of your system.
How does BassXT work with other Audyssey technologies?
Audyssey BassXT is designed to work in conjunction with our loudness control technology, Audyssey Dynamic EQ, and our core room equalization technology, Audyssey MultEQ. MultEQ first determines the proper equalization curve for your system. Dynamic EQ then determines the proper loudness compensation based on the sound pressure level information MultEQ provides. BassXT then utilizes the real-time loudness compensation data from Dynamic EQ to extend the maximum capability of your system's low end.
Can BassXT push my system too far and damage it?
BassXT is designed to avoid that exact problem while extending bass performance to its safe limits. Because Audyssey engineers are able to analyze specific driver models from manufacturers, they fully characterize the capabilities and limits of each driver. BassXT will never push your system beyond what it can do, but it will make sure your drivers are doing all they can to deliver the deepest possible bass response.