. A rectangular or do-it-yourself (DIY) box of the same volume would also be fine. Damp the walls of the cabinet with upholsterers felt or use poly fill to stuff the box. Adjust the damping materials to suit your taste. The driver is counter sunk, but I didn't have any black low profiles screws on hand and I wasn't about to run out to buy some.
Photograph 2: Jordan JX92S in a 0.25 ft^3 Sealed Loudspeaker Box - Rear
The measured frequency response is shown in Figure 3. The frequency response measurements were completed using a Radio Shack 33-2050 SPL Meter. On axis, this is a fairly smooth driver. At about 15 degrees and more off axis, the high frequency response drops off rapidly due to beaming.
The impedance response was measured using the Dayton Audio Woofer Tester 3 and is shown below in Figure 4.
Figure 4: Measured Impedance Response - Jordan JX92S in 0.25 ft^3 Sealed Box
The temptation will be run these drivers fullrange and some may actually be happy by only sucking the drivers up against the wall. However, most people will likely prefer some amount of baffle step correction / compensation (BSC). The amount of attenuation required will be a function of the listening room, amplifier and personal taste. I was happy with about 4.5 dB of attenuation (Lbsc=1mH and Rbsc=3R9 for a 7.5" wide baffle). You can use the online baffle step correction calculator to determine a suitable circuit for your baffle width and desired attenuation.
Related DIY Jordan JX92S Loudspeaker Projects:
- Jordan JX92S Mass Loaded Transmission Line (ML-TL) Speaker
- DIY Jordan JX92S Bass Reflex Tower Speaker Project
What's Playing: Sarah McLachlan -The Path of Thorns (Terms)