Hello! I currently have this subwoofer. It calls for .5ft3 at 44hz sealed. All of the box designs I have come up with for .5ft have been around 91hz. How do you bring that number down in a sealed small enclosure?
https://ds18.com/collections/powers...ant-shallow-subwoofer-500-watts-rms-2-ohm-dvc
https://ds18.com/collections/powers...ant-shallow-subwoofer-500-watts-rms-2-ohm-dvc
Every speaker has a free-air resonance, "Fs".
When a speaker is put in a sealed box, the resonant frequency rises, the smaller the box the higher the frequency.
You can increase the apparent box volume by about 15% with damping material like fiberglass or Dacron (pillow filling).
You can adjust the response of the "too small" box with parametric equalization, cutting the "boom" level.
If the box is going in a vehicle, "cabin gain" will usually increase the low frequency relative to upper frequencies, but a small box will require more power to deliver low frequency output than a larger box.
The PSW10.2D spec sheet does not list it's Xmax (maximum linear excursion), so can't tell how much output potential it has.
When a speaker is put in a sealed box, the resonant frequency rises, the smaller the box the higher the frequency.
You can increase the apparent box volume by about 15% with damping material like fiberglass or Dacron (pillow filling).
You can adjust the response of the "too small" box with parametric equalization, cutting the "boom" level.
If the box is going in a vehicle, "cabin gain" will usually increase the low frequency relative to upper frequencies, but a small box will require more power to deliver low frequency output than a larger box.
The PSW10.2D spec sheet does not list it's Xmax (maximum linear excursion), so can't tell how much output potential it has.
