- 2014.10.01 Wednesday
The format of the enclosure, there is compatibility with the speaker unit. I face the unit magnetic circuit is weak diaphragm weight and, lightly - plane baffle. Prone to over-braking in the magnetic circuit unit is strong. I face the unit magnetic circuit is strong vibration plate weight is heavy and - sealed. When using a magnetic circuit unit is weak diaphragm weight and light and a large internal volume in order to suppress the influence of back pressure.
I face the unit magnetic circuit is strong vibration plate weight and, lightly - backloaded horn. Combination with the unit diaphragm heavy, prone to excessive bass. A lack of ability to drive the horn, there is a negative effect on the sound quality in the unit magnetic circuit is weak. Compliance range of the unit is wide by design - bass reflex type. When using a magnetic circuit unit is weak diaphragm weight and light, it is sufficient internal volume is smaller than that of the closed type.
Water down in the small port in the unit magnetic circuit is strong vibration plate weight and heavy, it is prone to excessive bass. The unit magnetic circuit is strong vibration plate weight and, lightly, while to strengthen the bass enhancing effect in the large port cross-sectional area, bass enhancement of bandwidth too low to avoid. In addition, I referred to as a "front loaded horn type" speakers fitted with a (horn) of the trumpet-shaped curved surface in front of the unit. Is intended to be used in combination with each of the enclosure, this is not a term that refers to methods enclosure.
While it is excellent in efficiency and can control the directivity, it tends to be large. It is used self-made speakers or large super premium speakers, a large acoustic speaker concert. It should be noted that it is a word that convention, not only used the horn with rear or the magnitude of above a certain level. For example, it small horn of a few cm are integrated from the beginning to the tweeter unit is often, but never referred to as a front load this horn.
Such as magnetic circuit design and edge, and the damper is bad can be cited as a nonlinear component that generates a distortion. Nonlinear effects of these become remarkable it is when the bass has a large amplitude. Equal loudness curve as is shown, the sensitivity of the low frequency range is dull human hearing. Even in the music you hear bass-mid-treble as getting better balance example, acoustic energy distribution is biased tend to bass, speaker reproducibility trying to (play) the energy distribution bass for the I will at a stroke increase. Large stroke is the easy depression in non-linear region of the vibration system support member. In addition, by generating counter-electromotive force by inertia (braking force) for heavy, which also cause distortion of the diaphragm of the bass. Distortion of the speaker results such is likely to occur in the low frequency range, even if actually measured for this purpose.
- 2014.11.08 Saturday
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