Help me - Pioneer TS-W305F

[Stanley Samuel]

This is my subwoofer parameters. The recommended enclosure is 150l but not mentioned sealed or ported. I'm very confused. I put this information in chatgpt ,deepseek etc. ai is also confused about sealed or ported. This is a free air car subwoofer. I built a 150l sealed box. But the bass is not punchy

 

[Galu]

The Qts of 0.63 is between 0.4 and 0.7, so indicates suitability for a sealed enclosure.

The EBP = Fs/Qes = 26.2/0.705 = 37, so also indicates suitability for a sealed enclosure:

https://speakerwizard.co.uk/ebp-eff...duct-a-guide-to-choosing-the-right-enclosure/

There are always exceptions, so hopefully the speaker design experts will chime in.

 

[Galu]

But the bass is not punchy

We should note that the Pioneer TS-W305F free air subwoofer is intended to use the whole boot of a car as an acoustic chamber.

According to my link above, sealed boxes produce tight, accurate bass, but usually the bass extension is restricted.

 

[weltersys]

I built a 150l sealed box. But the bass is not punchy

Stanley,

Where is the sub placed?
What crossover frequency and slope?
What are the top speakers?
What type of music do you listen to?

 

[Surtsey]

The T/S parameters are largely irrelevant. A car boot is not a laboratory. There are too many variables. The earth shattering sub in the back of a Hyundai may not sound so good in the front of a 911. All car subs are essentially band-bass, a box within a box within a box.
Environment is everything . . . location, location, location!