Source for metal speaker ports

jamesjung21 · 23rd December 2007, 12:09 AM

Hi

Does anyone know where I could find metal speaker ports?

I want to give a bit of trendy look to my bookshelf speakers with metal speaker ports.

Thanks,
James

Kinnja · 23rd December 2007, 03:43 AM

Metal electrical conduit. It normally comes in 10 ft. lengths.

zBuff · 23rd December 2007, 07:01 AM

Jaycar has em,

Probably too big for your application, but most car audio places sell bass ports too.

jamesjung21 · 23rd December 2007, 10:59 AM

zBuff,

I already know that Jaycar has plastic speaker ports but I am specifically looking for metal speaker ports.

I am thinking of chrome plating the plastic ports as the last resort, but I really like to use real metal ports if I could find any.

soongsc · 23rd December 2007, 01:05 PM

Hot water pipes? Or use a plastic one as a model for sand casting and get someone to melt the metal.

69stingray · 23rd December 2007, 01:18 PM

Look for local CNC companies. The cheapest method is if you have access to CAD, you can design them and have the CNC computer mill them. If you can design some common stock, it would be cheaper then milling from a solid chuck of metal.

y8s · 24th December 2007, 01:01 AM

you dont specify if you want straight tubing or flared.

for straight pipe, call a car exhaust shop. you can get mild steel, aluminum, or stainless steel. the latter will polish up nicely and remain so for a long time.

mcmaster.com also sells it.

peter_m · 26th December 2007, 04:14 PM

A metal port sounds conter productive to me. Wouldn't the metal ring like a bell and become too good of a sound/vibration conductor? If it becomes a problem, you could line it with a rubber like compound or glue a thin layer of foam to hidden surfaces...

jdlech · 26th December 2007, 05:13 PM

Yes, the metal would ring like a bell. Even heavy pipes. But I like the sand casting idea because one could make it as thick as you like.

Don't forget the possibility of using fired clay. Highly malleable and has resonance properties more like concrete. Although I might consider mixing in a bit of powdered pvc or plastic to make it a bit less vulnerable to impact cracking.

http://www.bigceramicstore.com/Suppl.../ovencraft.htm

23rd December 2007, 12:09 AM	#1
jamesjung21 diyAudio Member Join Date: Dec 2003 Location: New Zealand	Source for metal speaker ports Hi Does anyone know where I could find metal speaker ports? I want to give a bit of trendy look to my bookshelf speakers with metal speaker ports. Thanks, James

23rd December 2007, 01:05 PM	#5
soongsc diyAudio Member Join Date: Mar 2005 Location: Taiwan	Hot water pipes? Or use a plastic one as a model for sand casting and get someone to melt the metal. __________________ Hear the real thing!

23rd December 2007, 01:18 PM	#6
69stingray diyAudio Member Join Date: Apr 2005 Location: NH	Look for local CNC companies. The cheapest method is if you have access to CAD, you can design them and have the CNC computer mill them. If you can design some common stock, it would be cheaper then milling from a solid chuck of metal. __________________ Audio DIY Page FOLLOWMY529.COM - Subscribe and follow the performance of my daughter's 529 College Saving Account.

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23rd December 2007, 03:43 AM	#2
Kinnja diyAudio Member Join Date: Jan 2007	Metal electrical conduit. It normally comes in 10 ft. lengths.

23rd December 2007, 07:01 AM	#3
zBuff diyAudio Member Join Date: Nov 2004 Location: NZ	Jaycar has em, Probably too big for your application, but most car audio places sell bass ports too.

23rd December 2007, 10:59 AM	#4
jamesjung21 diyAudio Member Join Date: Dec 2003 Location: New Zealand	zBuff, I already know that Jaycar has plastic speaker ports but I am specifically looking for metal speaker ports. I am thinking of chrome plating the plastic ports as the last resort, but I really like to use real metal ports if I could find any.

24th December 2007, 01:01 AM	#7
y8s diyAudio Member Join Date: May 2006	you dont specify if you want straight tubing or flared. for straight pipe, call a car exhaust shop. you can get mild steel, aluminum, or stainless steel. the latter will polish up nicely and remain so for a long time. mcmaster.com also sells it.

26th December 2007, 04:14 PM	#8
peter_m diyAudio Member Join Date: May 2007	A metal port sounds conter productive to me. Wouldn't the metal ring like a bell and become too good of a sound/vibration conductor? If it becomes a problem, you could line it with a rubber like compound or glue a thin layer of foam to hidden surfaces...

26th December 2007, 05:13 PM	#9
jdlech diyAudio Member Join Date: Dec 2007	Yes, the metal would ring like a bell. Even heavy pipes. But I like the sand casting idea because one could make it as thick as you like. Don't forget the possibility of using fired clay. Highly malleable and has resonance properties more like concrete. Although I might consider mixing in a bit of powdered pvc or plastic to make it a bit less vulnerable to impact cracking. http://www.bigceramicstore.com/Suppl.../ovencraft.htm

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