7AUDIO

For this do-it-yourself (DIY) speaker project the Jordan JX92S fullrange driver is used to make a tower loudspeaker. The enclosure in a large (1.3 ft3) vented speaker box. This speaker system is well suited for medium to large sized room with medium powered amplification (more than 10W). The JX92S driver has good power handling (50W RMS) and a large Xmax of only 9 mm, so it can develop moderate SPL. The Jordan JX92S is a very well regarded fullrange driver which is known for it’s smooth frequency response and it’s ability to deliver much more bass than any similar sized fullrange driver.

Photograph 5: Jordan JX92S Tower Loudspeakers at Local Audio Event

Enclosure Design – Jordan JX92S Vented Loudspeaker

The goal was to get a good amount of low end response from this tower loudspeaker. Figure 1 shows the calculated frequency response for the JX92S in a 1.3 ft3 for a bass reflex cabinet (no damping material) and tuned to ~ 35 Hz. The frequency response was calculated using WinISD. The calculated -3dB point is about 30 Hz.

Figure 1: Calculated Frequency Response - Jordan JX92S Tower Speaker

See the Jordan JX92S fullrange driver page for the measured and factory Thiele-Small Parameters. As can be seen in the model of the frequency response, the T/S differences do not make much of difference in the frequency response. The enclosure design for this loudspeaker project is shown below in Figure 2. See the construction photographs and notes for more details.

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