The vented-box effect on thiele-small parameter loudspeaker

Loudspeakertesting is usually using the Thiele-smallparameter.To see the effect of the vented boxon loudspeakerquality,Thiele-smallparametersin vented boxboxes are used. Research carried out by measuring the characteristics of loudspeaker response frequency, impedance,and Thiele smallparameters in vented-boxesand panels. One factor affecting the acoustic parametersis the compressedairvalue generated by the loudspeaker or so-called air compliance.In vented-boxes,there is an effect of compressed air compliance in the boxand the air coming from the hole which is causing the pure loudspeaker sound trigger. On the panel, there is no compressed air. Fromthe measurement and results analysis, the ratio of compliance fromthe boxis 8.29: 10.7. This value has impacted the losses of the vented-box. The losses ofthevented-boxare 0.63% and the losses that happened on the panel is 0,014%. The losses oftheenclosure are causedby the shape ofthe enclosure design and the damping material in it.