The waveguide called Tritonia was one of the first ATH designs using the smooth curvature transition of the OS-SE[1] profile. It was originally designed with 1.4" throat and optimized for infinite baffle (or in-wall) conditions, and as such, depends on enclosure design. At the time it was believed that to eliminate the on-axis problems associated with most round waveguides (of that time), one has to make the mouth less symmetric - elliptical or rectangular, for example. This was before the advent of the latest free-standing devices, but the original design is still pretty good and can be used in a typical loudspeaker enclosure, if that's what's preferred, for whatever reason.
We believe that this set of waveguide kits can still make many audiophiles happy with its performance, especially in home theaters. The smaller versions are also very well suited for nearfield monitors. The version "F" is a full-scale version of the original, intended for the most demanding, high-performance installations. All kits have been modified to be used with 1" compression drivers and also for a bit wider nominal coverage.
Included in the packages are also STEP files, allowing further custom modifications of the models in any professional CAD software without loss of quality.
The first kit available, called Tritonia-S (for "small"), is a reduced-scale version of the original, modified for a slightly wider coverage, intended for a 1" compression driver and to be used from roughly 1.5 kHz. The front dimensions are 206 x 178 mm, so the waveguide can be printed in one piece on most 3D printers. The nominal coverage is 100° x 90°, although the enclosure (or lack of) can still alter this to a degree.
The throat opening angle is 20° but it's not really critical in this kind of waveguide with a rapid throat expansion. The internal conical exit section of most compression drivers doesn't allow a perfectly smooth, reflection-free transition anyway. There are no replaceable throat adapters for this design.
It's not strictly necessary to build it into an enclosure, it can be left standing (for example) on a midbass cabinet, although the performance will typically suffer to a degree (you can see such results here). A properly rounded enclosure should provide the best acoustic conditions. Anyway, in the kit there are several versions of the waveguide for different mounting options. Complete Ath code is provided so it's possible to simulate the waveguide in a custom enclosure even before purchasing the kit.
 Tritonia-S / Model Kit |
Tritonia-S / Ath code |
 Tritonia-S / Drawing |
The second kit is still a 1"-throat, reduced scale version of the original, but larger than the "S" version. The front dimensions are 294 x 254 mm (11.6" x 10"). It's also designed to be printable basically in one piece on larger 3D printers. Its acoustic qualities are maintained and extended to a bit lower frequencies. It's supposed to be used down to 1 - 1.2 kHz, depending on a driver used.
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Tritonia-M / Model Kit |
Tritonia-M / Ath code |
 Tritonia-M / Drawing |
The XS version is the smallest of the Tritonia models (and there probably won't be anything smaller than this). The front dimensions are only 140 x 122 mm (5.5 x 4.8") and the coverage angle is also the widest of all the models (approx. 110°). It's supposed to be used from around 2 kHz, depending on a driver used, but it's assumed that rather smaller drivers will be used with this waveguide.
Several versions of the waveguide body are included in the package, with different throat diameters: 1", 0.75" (B&C) and 0.63" (BMS). This can be an interesting alternative to the smaller shallow waveguides normally used with dome tweeters.
Tritonia XS is also a very easy FDM print.
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Tritonia-XS / Model Kit |
 Tritonia-XS / Drawing |
This is the full-scale version of the original waveguide, adapted for 1" throat. This waveguide can be used in top-performance classic loudspeakers with a 15" woofer.
The front dimensions are 422 x 364 mm (16.6 x 14.3"). Nominal coverage is 100° and is fairly constant from 800 Hz to 16 kHz. A waveguide this big can be already quite demanding to make and it's available for those with enough courage and also some experience. Included in the kit package are also STEP files suitable for any custom modifications of the waveguide, or a preparation of a different manufacturing process (CNC, mold making, etc.).
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Tritonia-F / Model Kit |
 Tritonia-F / Drawing |
