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Precision Port 3" Flared Speaker Cabinet Port Tube Kit

Brand:| Model: PSP3-BKHT
Overview
The unique flared-end construction of the Precision Port™ system enables it to outperform any standard port tube on the market. Conventional tubes suffer from nasty turbulence at the entrance and exit of the port, producing unwanted noise and poor sound quality.
Part # 
268-350
Weight: 1.28 lbs.  
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List Price$17.99
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Part # 268-350
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Product Details

Precision Port 3" Flared Speaker Cabinet Port Tube Kit

The unique flared-end construction of the Precision Port™ system enables it to outperform any standard port tube on the market. Conventional tubes suffer from nasty turbulence at the entrance and exit of the port, producing unwanted noise and poor sound quality. The Precision Port™ system overcomes these problems and as a result can actually produce a gain of up to 3 dB in output!

Now you can experience good looks, low distortion, and superior overall sound quality thanks to the Precision Port™ system. Convenient front screw holes make this tube easier to install than others on the market. Create a port up to 17" long, then glue with ABS glue found at any hardware store. Installation instructions included. Dimensions: • 6-1/4" outside flare outer diameter • 5-1/4" cutout • 5-3/16" inside flare outer diameter. Also available in 2", 4", and 6" diameters. Proudly Made in the USA!

To calculate the proper port length for your cabinet and tuning frequency, use Precision Sound Products' Port Length Calculator.



Precision Port 3" Flared Speaker Cabinet Port Tube Kit
  • BrandPrecision Sound
  • ModelPSP3-BKHT
  • Part Number268-350
  • UPC844632046780
  • Product CategorySpeaker Port Tubes
  • Unit of MeasureEA
  • Product Rating
    (38 Reviews)
  • Weight1.28 lbs.
  • California Prop 65

    Warning: California residents only. Please note per Proposition 65 that this product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

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in the Speaker Port Tubes product category.

Reviews

Precision Port 3" Flared Speaker Cabinet Port Tube Kit
Precision Port 3" Flared Speaker Cabinet Port Tube Kit is rated 4.5 out of 5 by 38.
Rated 4 out of 5 by from Easy to assemble, looks great in finished productI used 2 of these with a 12" Dayton Ultimax subwooder in a 4 cu ft ported box, tuned to 20hz.Perfect for my living room 5.1 set-up!
Date published: 2014-01-23
Rated 4 out of 5 by from NO- REPEAT, NO CUSTOMER SERVICEI BUILT 4- 2.25 CU/FT. BOXES ACCORDING TO PLANS FROM EMINENCE. THE PLAN IS FOR A SINGLE LAB 12. PRECISION PORTS ARE SUPPOSED TO IMPROVE PERFORMANCE AND A 3"PORT REQUIRES A SHORTER LENGTH SO I THOUGHT THEY WOULD BE WORTH TRYING. I HAD A QUESTION AND CALLED PRECISION PORTS TWICE AND NEVER RECEIVED A RESPONSE. THEY GAVE NO REPLY TO EMAIL EITHER. PARTS EXPRESS WAS THERE TO HELP AND THE PROJECT IS COMPLETE. THE BOXES SOUND VERY GOOD BUT I DIDN'T BUILD ONE WITH STANDARD PORTS TO COMPARE IT TO. I UNDERSTAND THAT PRECISION PORTS IS A SMALL COMPANY AND MAY NOT HAVE THE RESOURCES TO OFFER HELP, BUT IT WOULD BE NICE IF THEY POSTED Q & A PAGES FOR THE SAKE OF THEIR CUSTOMERS. IT MAY NOT BE COST EFFECTIVE BUT THE PORTS WOULD BE EASIER TO WORK WITH IF THEY WERE DESIGNED WITH HUBS RATHER THAN THE COUPLER TO MAKE GLUING SIMPLER. OVERALL, PRECISION PORTS LOOK NICE AND SEEM TO WORK WELL.
Date published: 2013-09-06
Rated 4 out of 5 by from THE simplest solution to a growing "problem."Stiff heavy speaker cones (lower Vas, lower Fs), more motor strength (low Qes), and more displacement (Xmax). All great attributes for a low distortion driver with good flexible bandwidth options down low in compact boxes, until we try to use the traditional reflex enclosure and find that there is is no way to achieve the tuning desired with quiet operation with a traditional "pipe" or "slot" in the compact box.A flared port like this solves a lot of headache and is the simplest solution to solving the port noise and compression problem in modern designs.For the money these are a great product, however I think they could easily be getting a few more bucks for these if they included a thicker mounting flange with recessed pockets for fasteners and a pre-installed gasket. The nicer spring terminals sold here at PE are a good example of what I would like to see as far as flange improvements on these ports.
Date published: 2013-09-05
Rated 4 out of 5 by from Good productI was repairing my old subwoofer and precision port was easy to install. I assume that it is also durable and of great quality.
Date published: 2013-09-03
Rated 4 out of 5 by from good itemThe hole needed is very large, so don't think you're only going to make a 3" hole in your cabinet.I'm using it in a 1.13 cuft cabinet. 10" driver. I get zero port noise.I'd like it to be longer though. I have it tuned to 30hz, but I wanted it to be tuned to 28. Maybe someday I'll had 3 inches to get the low end even deeper.
Date published: 2013-01-18
Rated 5 out of 5 by from Works greatJust as the title says they work as intended. I'm running two sa 12s in a sedan and am hitting high 130s would recommend these to anyone looks for good clean sound.
Date published: 2012-04-28

Product Q&A

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who own this product or have experience with it.
If your question requires design or troubleshooting information,
please email tech@parts-expresss.com  for a prompt reply.
Precision Port 3" Flared Speaker Cabinet Port Tube Kit

I'm using this 3" port to replace the 3" diam. cardboard tube on JBL L-88's. I was going to use the same length, including the flares, as the original cardboard tube. Bad idea? I can only shorten the tube not lengthen it because of space limitations.

Asked by:
If you make the overall flared port the same length as the original straight port the tuning will go up slightly, but only a few Hz. This should not negatively affect audible performance.
Answered by: MattP
Date published: 2014-09-09

Does this kit come with at least a foot of port length? I need at least 11 inches of port...

Asked by: KRNAZNBOY
The main tube of this kit is 12" long total, with flares added the overall length is 18".
Answered by: MattP
Date published: 2014-09-08

I'm working on a ~1 cu ft box for a 10" sub, and want it to be tuned to 32 hz.  That requires a 3" port with length of 15.3". If I went with 2 3" ports, would they both need to be 15.3" long? 

Asked by: Griesj81
If you wanted to add a second port, they would each need to be 34" long to achieve the same tuning frequency.
Answered by: MattP
Date published: 2014-06-12

How big does the hole in the cabinet need to be? The holes I have are about 3 1/4" and not much room to make larger. I guess I'm asking what is the dimensions of the very end of the tube and the dimension of the flare at the end where it screws in

Asked by: yankeestonk
The cutout for this port is 5-1/4 and the overall outside diameter is 6-1/4
Answered by: Chrisf
Date published: 2014-06-06

I'm rebuilding a damaged polk audio sub box. It has a 3"Dia flared port that I won't be able to salvage and need to duplicate for the new box. It has an elbow in the port, how do I measure the elbow to ensure I accurately replace with a precision port?

Asked by: Califonz
You want to measure from the center of the elbow, as close as possible at least. This will give you the working length of the port.
Answered by: MattP
Date published: 2014-04-22

Need two 3" Dia by 11" long ports are thes kits long enough ? Also do I account total length of the flared inputs that will be on each end ? Thanks

Asked by: mwolcott1
Yes these will be long enough. In order to end up with an 11" useable length, you will want to cut the tube portion of this port to 9-1/2".
Answered by: MattP
Date published: 2014-04-08

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