Loudspeaker cabinet volume sets the lower frequency limit
Evidence
Second, the volume of the enclosure interacts with the drive unit to set a lower frequency limit for the loudspeaker. Clearly, a sphere cannot have a diameter that is less than the diameter of the drive unit. Truncated ellipsoidal shapes, as shown in Figure 6.64(b), have an additional degree of freedom that, within reason, allows one to set the volume independently of the diameter of the drive unit. — David M. Howard, Jamie Angus, Acoustics and Psychoacoustics, 2157
Related
- Truncated ellipsoidal speaker enclosures match spherical performance with more design freedom (similarity 0.86)
- Loudspeaker enclosures should curve near drivers and offset them vertically (similarity 0.85)
- Loudspeaker enclosures should curve near drive units to reduce diffraction (similarity 0.84)
- Sound waves diffracting at speaker cabinet edges distort the frequency response (similarity 0.83)
- Loudspeaker enclosure shape and size alter frequency response via diffraction (similarity 0.83)
- Cabinet shape and driver placement materially govern diffraction distortion (similarity 0.83)
- Loudspeaker enclosures should be curved near drivers and avoid central mounting. (similarity 0.82)
- Greater loudspeaker-wall separation shifts the adjacent-boundary dip to lower frequencies (similarity 0.81)
- Spherical enclosures give the smoothest loudspeaker frequency response (similarity 0.81)
- Speaker size dictates the lowest frequency sustaining a given coverage angle (similarity 0.81)
- Low-frequency room response depends on woofer distances to floor and walls (similarity 0.81)
- Loudspeaker quality depends on off-axis radiation because rooms reflect it (similarity 0.81)
- Flush-mounting a speaker in a wall reduces the low-frequency rise to 6 dB (similarity 0.80)
- Loudspeakers need enclosures to stop back-wave cancellation of sound (similarity 0.80)
- Enclosures prevent acoustic short-circuiting that silences low frequencies (similarity 0.80)