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What is Port Chuff
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Joined: Feb 2003
Posts: 138
veteran
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OP
veteran
Joined: Feb 2003
Posts: 138 |
I'm not exactly a newbie to the hi fidelity realm but I've owned a sub for less than a year. In reviews of different sub brands, even on the EP350 which I own, I keep hearing about "Port Chuff" as a form of distortion. Can anybody define for me what exactly it is and how I can identify it on my current set up?
Sean
Exaudio ergo cogito ergo sum
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Re: What is Port Chuff
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Joined: Feb 2004
Posts: 418
devotee
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devotee
Joined: Feb 2004
Posts: 418 |
Crank up something with a lot of bass and stick your head near the port (hole) on your sub.
If you can hear the air coming out of the port, it's chuffing...
M-
M60s/VP150/QS8s/SVS PC-Ultra/HK630
Sit down. Shut up. Listen.
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Re: What is Port Chuff
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Joined: Dec 2002
Posts: 625
aficionado
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aficionado
Joined: Dec 2002
Posts: 625 |
just another silly name for brown noise
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Re: What is Port Chuff
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Joined: Feb 2004
Posts: 418
devotee
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devotee
Joined: Feb 2004
Posts: 418 |
M-
M60s/VP150/QS8s/SVS PC-Ultra/HK630
Sit down. Shut up. Listen.
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Re: What is Port Chuff
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Joined: Feb 2003
Posts: 138
veteran
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OP
veteran
Joined: Feb 2003
Posts: 138 |
Checked out the EP350 using the Finding Nemo dvd. Sounded okay - felt a lot of wind but heard nothing matching the description above. No brown noise either although, if I had turned the reciever up louder when Darla was tapping the tank, there might have been ...
Exaudio ergo cogito ergo sum
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Re: What is Port Chuff
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Joined: Apr 2003
Posts: 16,441
shareholder in the making
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shareholder in the making
Joined: Apr 2003
Posts: 16,441 |
The responses so far have the definition of port chuffing covered, more of less. During loud bassy scenes, you'll always feel wind if you have your face near the port. It's only when the port starts to add sound of its own -- acting like a trumpet of sorts -- that if becomes a problem.
What happens is that the air entering the port undergoes some compression and then becomes highly turbulent once it exits on the other side. Flaring the port is supposed to significantly reduce this turbulent effect.
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Re: What is Port Chuff
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Joined: Sep 2002
Posts: 1,488
connoisseur
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connoisseur
Joined: Sep 2002
Posts: 1,488 |
if you hear any port chuffing you'll probbly hear it when theyre inside the whale. Thought i was gonna blow my sub up when i watched that movie! lol.
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Re: What is Port Chuff
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Joined: May 2002
Posts: 5,745 Likes: 17
axiomite
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axiomite
Joined: May 2002
Posts: 5,745 Likes: 17 |
Sean, this thread should be helpful.
"Those who preach the myths of audio are ignorant of truth."
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Re: What is Port Chuff
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Joined: Feb 2003
Posts: 138
veteran
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OP
veteran
Joined: Feb 2003
Posts: 138 |
Chesseroo
Thanks - I read this some time ago and had forgotten about it.
Sean
Exaudio ergo cogito ergo sum
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