SEAS H9944 SP18R is a passive radiator intended for use as an alternative to the port in a bass reflex cabinet, together with an active woofer of similar size or smaller..
In many applications the traditional bass reflex port may produce high speed air noise or even have poor effect due to a small port area or a large port length. In such cases, a passive radiator may bring about an improvement.
The Datasheet chart shows the mass which has to be added to the cone of the passive radiator in order to obtain the desired Helmholtz resonance frequency in a given cabinet volume.
For optimum performance, the passive radiator should be mounted vertically (with horizontal cone axis) This is especially important when a significant additional mass is used.
A product datasheet can be downloaded from the Product Description page.
|Seas Driver Range||Seas Prestige|
|Nominal Impedance||Passive Aux. Radiator|
|Nominal Power RMS||-|
|Vas ( l)||-|
|Nominal Free Air Resonance Fs||-|