- TWEETER MIDRANGE SPEAKER ENCLOSURE DESIGN DRIVERS
- TWEETER MIDRANGE SPEAKER ENCLOSURE DESIGN DRIVER
- TWEETER MIDRANGE SPEAKER ENCLOSURE DESIGN MAC
Other ways to time-align are to introduce a phase shift in the tweeter signal (lag or lead, depending upon the offset between the drivers) so that it mimics the physical offset. This is one of the reasons for physically offsetting the mid-range and tweeter such that the tweeter is physically behind the mid-range, or tilting the speaker upwards, to achieve an on-axis response that is coincident with the physical on-axis plane. As can be seen, the lobe tilts downwards towards P' which is not the same as the on-axis listening position P. The above image shows the lobing pattern of a typical TM loudspeaker.
TWEETER MIDRANGE SPEAKER ENCLOSURE DESIGN DRIVERS
Thus, with a typical TM or MT loudspeaker where the drivers are not time-aligned, the main lobe is tilted away from the horizontal. There will, however, be some off-axis listening position where the acoustic sum is ideal - but the listening position itself may be such that it is not practical. The overall effect is that at the crossover frequency (when both drivers are reproducing the same frequency) the sound from both drivers does not acoustically sum ideally at the on-axis listening position. Conversely, the MT or TM combination's on-axis plane is not coincident with the physical on-axis plane - it is tilted w.r.t. Since it is rare for a tweeter and mid-range (or woofer) to have their diaphragms or acoustic centers in the same physical plane, it follows that sound waves emitted by them (of the same frequency) will not reach a particular listening position in the on-axis plane at the same time. 1 Lobe tilting of MT or TM configurations.The direction in which the lobe tilts (i.e., the vertical orientation or angle of the lobe) is a function of the difference or offset between the acoustic centers of the two drivers. The only other difference is the lobe tilt which is exactly the opposite of the MT configuration.
TWEETER MIDRANGE SPEAKER ENCLOSURE DESIGN DRIVER
There are speakers where the tweeter appears below the larger driver and though electrically it is identical to the MT configuration, it is customarily denoted as "TM". However, this does not impart any significant effect on the MTM design's unique characteristics. D'Appolito initially configured his design using a 3rd order (18 dB/oct or 60 dB/dec) crossover, D'Appolito has since amended this original recommendation in favor of 4th order topology. In the MTM arrangement the loudspeaker uses three drivers: Two mid-range (or mid-woofer/woofer) for the low frequencies and a tweeter for the higher frequencies, with the tweeter being placed between the mid-range drivers (as shown in the second image below). Whichever Zeppelin you pick, you can be sure that your digital music will never quite sound the same again.The midwoofer-tweeter-midwoofer loudspeaker configuration (called MTM, for short) was a design arrangement from the late 1960s that suffered from serious lobing issues that prevented its popularity until it was perfected by Joseph D'Appolito as a way of correcting the inherent lobe tilting of a typical mid-tweeter (MT) configuration, at the crossover frequency, unless time-aligned. And now there's also the Wireless Music System A7 and A5, perfect for when you want a big sound in smaller spaces. The original Zeppelin has become a modern design classic - the ideal all-in-one sound system for any space and occasion. There are Three models in the iPod speakers family to choose from. AirPlay on Zeppelin Air works seamlessly with your favourite music apps, like Last.fm, Pandora and Mixcloud. Music is everywhere: how you play it is up to you. It works seamlessly with all your favourite music apps, like Spotify and Last.fm.
TWEETER MIDRANGE SPEAKER ENCLOSURE DESIGN MAC
From your Mac or PC, or streamed directly from your iPhone, iPod touch or iPad. Zeppelin Air lets you play your entire music collection wirelessly.
With its breathtaking sound quality and stunning design features, Zeppelin really is the speaker your iPod has been waiting for Every Song, Wirelessy Introducing Zeppelin - the ultimate iPod speaker system brought to you by the makers of some of the most advanced hi-fi speakers in the world.
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