The new L1 Compact system features an integrated low-frequency enclosure and combines the amplifier, monitor, PA, mixer and EQ into a complete audio system ready for simple connection to an instrument, microphone, MP3 player, computer or other audio device.
However, at other frequencies, the enclosure plate could give worse insertion loss performance.
Another document, this one a military handbook entitled "Radio Frequency Shielded Enclosures," describes "Tempest shielding" as being designed to "reduce the conducted and radiated emissions from within the sensitive environment to an undetectable level outside the shielded enclosure in uncontrolled areas".
Especially in case of insufficient damping of the mechanical load, or if this load corresponds to the natural frequency of the enclosure, the dynamic stress is much more critical.
This is most important at low frequencies, so the enclosure for the bass drivers should always be solidly constructed.
This minimizes the change in the driver's resonant frequency caused by the enclosure.
The simulation results of built enclosure flow rate, frequency of enclosure flow can be applied to improve the ventilation performance of buildings merely with rear wall openings.
Low frequency noise escapes from the enclosure through air intake and gas exhaust openings.
The high-frequency model yields good agreement between experimental results and predicts accurate values of insertion loss over a greater range of frequencies than expected for the enclosure with the largest free volume.
'Satellite' enclosures for higher frequency drivers should also be, but may give good performance if more lightly built.
A method to compute the power spectral density of sound transmitted on the axis of an axisymmetric enclosure for a wide frequency band is presented.
