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Message: <blockquote data-quote="Moble Enclosurs" data-source="post: 7618361" data-attributes="member: 634917">Great post kr15.I will add my viewpoint on them, and try to keep it simple. Tlines are really not as simple so discussing them can get quite detailed, but for sake of argument, Ill be brief.First, I must say that the Vifa drivers you chose are great candidates for the tline enclosure. You might have known that based on research but just to give you a designers point of view on them.A tline can be expressed as an acoustical form of the electrical tline in which the impedance is reduced as a goal of transience. The ideal tline in HT design is one that is tapered negatively from the drivers radiation to the output opening (mouth area). This allows for the existence of low end reproduction without losing efficiency. Output may suffer in this design style (reverse tapered) due to compression constraints or reverse coupling effects, but the response smoothness is increase over that of a standard design.The overall output of a tline is not based on resonance curves, though most websites may say otherwise, but more so on the entire pass-band of frequencies as a focal point, much like kr15 mentioned with linearity. This allows for accurate reproduction by separating the higher frequencies of NON interest with that of the lower end response all from the same driver. The distance separation and phase separation creates the FULLNESS that was previously mentioned, and also reduces distortion.In a conventional ported design, a lot of the effects of reproduction is based on a separate goal of output, where compression is higher, and enclosure parameters limit the responses ability to produce low level distortion at the same efficiency as the tline.I can go much further than this, but I hope that helped a little. lol</blockquote>

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