Has anyone used the port tube in the link below? Where you satisfied with the performance?
G
http://www.partsexpress.com/pe/show...&St3=53802512&DS_ID=3&Product_ID=117897&DID=7
G
http://www.partsexpress.com/pe/show...&St3=53802512&DS_ID=3&Product_ID=117897&DID=7
I did not use this port specifically but I have used similar one. Sometime this is the only way to remove port noise (especially for a sub).
G said:
The concensis is coming around to the idea that flared ports are always a good idea. I never bother with the store-bought ones, preferring a stout piece of PVC and a round-over router bit.
dave
Re: Re: Any opinions on this product?
That's a cheaper approach. The results are between the strait one and the flared one I think.
planet10 said:
That's a cheaper approach. The results are between the strait one and the flared one I think.
Re: Re: Re: Any opinions on this product?
Properly terminated on the inside and with a large enuff roundover, they are at least as good.
dave
François said:
Properly terminated on the inside and with a large enuff roundover, they are at least as good.
dave
port construction
The main thing a port tube designer can aspire to is to reduce port noise. There are two sources of that. 1) Sound in the cab shaking the tube, and 2) Wind noise of the waves moving in and out of the port entrance and exit. Of these 2 is easy to fix by using a hefty tube. If you are nuts you could wrap the outside of it in a damper.
The wind noise however is real, and difficult to stop - thus the flared ends. Now, the most hi-tech tubes out there are the tubes used for small diameter hvac terminators. pvc. If you want to something interesting take a look at these tubes. Because they go into architecture its a million dollar engineering job designed to reduce wind noise at a tube termination.
My old subwoofer diy group had some people who tried it and it worked.
The main thing a port tube designer can aspire to is to reduce port noise. There are two sources of that. 1) Sound in the cab shaking the tube, and 2) Wind noise of the waves moving in and out of the port entrance and exit. Of these 2 is easy to fix by using a hefty tube. If you are nuts you could wrap the outside of it in a damper.
The wind noise however is real, and difficult to stop - thus the flared ends. Now, the most hi-tech tubes out there are the tubes used for small diameter hvac terminators. pvc. If you want to something interesting take a look at these tubes. Because they go into architecture its a million dollar engineering job designed to reduce wind noise at a tube termination.
My old subwoofer diy group had some people who tried it and it worked.
- Status
- Not open for further replies.