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Precision Port 2" Flared Speaker Cabinet Port Tube Kit

Brand:| Model: PSP2-BKNT
Overview
The unique flared-end construction of the Precision Port™ system enables it to outperform any standard port tube on the market. Proudly made in the U.S.A.
Part # 
268-348
Weight: 0.75 lbs.  
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Product Details

Precision Port 2" 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.

The 2" model now comes with starter holes on the rear of the mounting flange, allowing the user to decide whether to use 3 mounting holes, 4 mounting holes, or none at all! All you need is a standard twist-drill to make your custom mounting decision. The central tube can be cut to any desired length, with a maximum overall port length of 11". Once the pieces are cut, the system can be permanently bonded with ABS pipe cement. Dimensions: • 5-1/4" outside flare outer diameter • 4-1/4" cutout • 4-3/16" inside flare outer diameter. Also available in 3", 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 2" Flared Speaker Cabinet Port Tube Kit
  • BrandPrecision Sound
  • ModelPSP2-BKNT
  • Part Number268-348
  • UPC844632046773
  • Product CategorySpeaker Port Tubes
  • Unit of MeasureEA
  • Product Rating
    (16 Reviews)
  • Weight0.75 lbs.
  • California Prop 65

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

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Reviews

Precision Port 2" Flared Speaker Cabinet Port Tube Kit
Precision Port 2" Flared Speaker Cabinet Port Tube Kit is rated 4.6875 out of 5 by 16.
Rated 5 out of 5 by from Great port tube!solid construction, high quality ABS. Included a formula sheet to calculate the proper port length. I'd recommend using the formula sheet over one of the free speaker design programs such as winISD.
Date published: 2013-04-14
Rated 5 out of 5 by from Excellent Product!These are some very well built ports. A must to have the flares to reduce port noise. Excellent quality, a bit pricey, but worth every penny.
Date published: 2013-03-02
Rated 5 out of 5 by from Great productGreat product, high quality, easy to work with. makes any enclsore look good
Date published: 2013-01-06
Rated 5 out of 5 by from It's a flared portIt's a flared port. That pretty much sums it up. Just as a warning, it may be hard to install it since there's no real way to attach the port outside of glue. And the middle tube feels very thin. OK sure, for the materials you definitely get nearly no value for the money, but it's a flared port! It really does make a huge difference in speaker design. In my opinion, it should be illegal not to use one.
Date published: 2012-10-31
Rated 5 out of 5 by from Excellent product for the price!!Once you calculate the correct square dimensions of your speaker box or cabinet. (There are websites that can help you with calculations) Remember to measure twice and cut once. I have seen similar products for twice the price, but this tube kit has great smooth sound when it is correctly installed. I will purchase another one soon.
Date published: 2011-10-14
Rated 5 out of 5 by from Great Product, I bought 8 of them!Great Product !They have a website at http://www.psp-inc.com/tools.html that will calculate the total length of the ducted tuned port. The first number is without the flares attached & the second number is with the flares attached. The difference between the 2 numbers is the length of pipe you need to fit between the flares!
Date published: 2012-11-27

Product Q&A

Get your questions answered from other customers
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 2" Flared Speaker Cabinet Port Tube Kit

Port length is too long, how can I do this? (half an inch longer :/)

Hello,I am building ZX Spectrum DIY Build by Paul Carmody and his design states a 2" diameter port 3.5" long. So I ordered the Pecision 2" port kit and I am reading the instructions and it gives a formula to calculate the tube port lenght (Lv) and than it states that the center tube should be trimmed 4" shorter than Lv.... my Lv is 3.5"... soo yeah problem. Without the center tube the flared ports I guess are .5" longer than I need them. So my dilemma is, can i shave off/cut .25" from each flare end and than join them with the ring (which i will also have to adjust)? Will this behave as a 3.5" port?The instructions also state that the fully assembled port should be 1" longer than Lv which would make mine 4.5"
Asked by: Ivan T.
kinda hard to follow your question but the length of the flare's aren't included in the tuned port length. only the part of the port that is 2" on the ID counts an the length. i hope that helps.
Answered by: Matt's Watts
Date published: 2012-02-13

placement

i'm building my first 2 way with your guidance. I cannot fit the port tube on the front. does it matter where on the cabinet that this is placed. Also, is there a standard as to where the woofer and tweeter get placed? should there be a specific space between them or as close together as possible.thanx
Asked by: jalng63
It depends on the placement of the speaker in the room, as well as the tuning of the port. It is fine to have the port in the back if the speaker will not be directly up against the wall. It would be a good idea to have it at LEAST 4-5" away from the wall, more is better. Placing the port on the front will produce some unwanted distortion in your signal. You will get a "gulping" noise that will be partially masked by placing it on the rear of the cabinet. In my experience I would say that it is better to have the port on the back side of the cabinet. The lower frequencies are essentially omnidirectional, so the fact that they are not firing at the listener is okay. As for driver placement, it is good to try and mimic a point source for the sound. This means putting the drivers closer together is better.
Answered by: Jordon Gerber
Date published: 2012-01-19

There are no details on adjust-ability of this product. Can it be cut to correct length, then have the ends attached??

Asked by: Freddy
Yes. You can cut the tube to whatever length you want, then attach those to the flared ends. The kit consists of two flared ends, 1 tube and two connectors to connect them all together.
Answered by: Challenger Owner
Date published: 2011-11-08

1

Will this be a proper sized port for a single 6 1/2 subwoofer?
Asked by: phantom6107
Couldn't tell ya :-) The port's size is used to tune the enclosure based on the enclosure's volume not the speaker. The size of the enclosure is determined by the speaker.
Answered by: Matt's Watts
Date published: 2013-05-01

How short in length can this port be adjusted to?

Asked by: NewB
The shortest this port could be cut to is roughly 3" which is essentially just attaching the two flares together.
Answered by: MattP
Date published: 2013-06-07

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