PEX Precision Port 4" Flared Speaker Cabinet Port Tube Kit P1264423PEX-268-352 https://cdnimages.opentip.com/full/PEX/PEX-268-352.jpg Precision Port 4" Flared Speaker Cabinet Port Tube Kit Manufacturer Part Number: PSP4-BKHTHighlightsReduces air turbulence to minimize or eliminate port noiseGives your enclosures a sleek, professional lookJust cut to length, glue together, and installMounts in 6-1/4\" diameter cutoutPrecision Port 4\" Flared Speaker Cabinet Port Tube KitThe 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: • 7-1/4\" outside flare outer diameter • 6-1/4\" cutout • 6-3/16\" inside flare outer diameter. Also available in 2\", 3\", and 6\" diameters. Proudly made in the USA!To calculate the proper port length for your cabinet and tuning, use Precision Sound Products\' Port Length Calculator. Precision Port 4\" Flared Speaker Cabinet Port Tube Kit Brand:Precision Sound Model:PSP4-BKHT Part Number:268-352 UPC:844632046797 Product Category:Speaker Port Tubes Unit of Measure:EA Weight:1.64 lbs. 1264423 844632046797 15.55lbs 0.00 0.00 0.00
Precision Sound
15.49 2022-09-23 Out of Stock
customer review - by , April 4, 2018
4/ 5stars
Very sturdy and arrived as advertised. this thing is HUGE had to return the center tube is 434; not the outer cone. Had to return and it was a pain
customer review - by , March 3, 2018
5/ 5stars
Sounds amazing. Used one 434; port on two alpine type S 10's
customer review - by , December 12, 2017
4/ 5stars
Worked as expected.
customer review - by , December 12, 2017
5/ 5stars
Different company, but same part, but built a little better these days.
customer review - by , August 8, 2017
4/ 5stars
Awesome sounding port if you can fit it to the box! The plastic is a bit difficult to cut if you want to shorten it but other than that it makes for great sound quality when installed correctly.
customer review - by , July 7, 2017
5/ 5stars
It was a bit long, but it comes in prices and assembles extremely easy. Cut it down, measure, put in length to calculator, find your optimum tuning frequency and go from there. My enclosure went from a 42hz prefab, to a 31hz custom. Sounds ten times better, especially on really low bass!
customer review - by , May 5, 2017
5/ 5stars
this works awesome, going to need 634; hole saw for correct fitment. Cut to size and glue together,would buy again!
customer review - by , February 2, 2017
5/ 5stars
I used this for a 1234; home subwoofer in a 4.6 cu.ft enclosure, tuned to 20 Hz. It's easy to install, and the flared ends eliminate chuffing and give a professional look. If you don't cut the tube, it gives 1834; total physical length, but 1734; effective length (the length used in the tuning calculations). If needed, it can be cut a lot shorter. Each port is composed of 5 pieces: two flared ends (the outside flare is a little wider than the inside one), one 434; diameter tube, and two identical collars which connect the flared ends to the tube. The only thing I don't like is that, as of early 2017, there are no curves/elbows available for these Precision Ports. I don't know if regular ABS plumbing elbows would fit. So using the tube at longer lengths requires a large enclosure. You need to use ABS cement (glue) to join the 5 pieces together. After you've applied the glue and pressed the pieces together, you only have a few seconds to twist or re-position the pieces, if necessary. After that it's permanent. The key is to fit the pieces together properly and quickly. If you don't have experience gluing ABS tubing, it's best to practice on scrap tubing first. Also, it's easy to get beads of excess glue to drip out on the inside. It won't affect the sound but will be unsightly. You can scrape off excess glue with your fingernail about 30-60 minutes after applying.
customer review - by , February 2, 2017
5/ 5stars
I was worried about this not working well but after building my sub box 3/4 inch thick MDF for one 12 inch 900 watt speaker and using the specs from my speaker instructions that said it should be 7 inches in length, used super glue to tie together; HUGE BASS! Great product, I tried covering the port by putting it on its side down on floor, Bass is lost, I would recommend this for future box builds that require a port
customer review - by , December 12, 2016
5/ 5stars
This port is a full 5 stars. So I had to build a custom ported box for a customer consisting of 15quot; sub n a 2000 jeep wrangler lets just say there is no dang room to work with. Anyway long story short I used this port and the bass is super clean w no port noise. This is definitely a 5 star product and is very easy to use. Box is 2.5 cu ft internal with port and sub displacement and tuned 35hz. Sorry just noticed in pics you cant even hardly see the port haha. You can kinda see it in the top right corner of the last pick
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Precision Port 4" Flared Speaker Cabinet Port Tube Kit

Rating 5 | 10 reviews
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Upc: 844632046797
SKU: PEX-268-352
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Product Description

Manufacturer Part Number: PSP4-BKHT

Highlights
  • Reduces air turbulence to minimize or eliminate port noise
  • Gives your enclosures a sleek, professional look
  • Just cut to length, glue together, and install
  • Mounts in 6-1/4" diameter cutout


Precision Port 4" 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: • 7-1/4" outside flare outer diameter • 6-1/4" cutout • 6-3/16" inside flare outer diameter. Also available in 2", 3", and 6" diameters. Proudly made in the USA!

To calculate the proper port length for your cabinet and tuning, use Precision Sound Products' Port Length Calculator.
Precision Port 4" Flared Speaker Cabinet Port Tube Kit
  • Brand:Precision Sound
  • Model:PSP4-BKHT
  • Part Number:268-352
  • UPC:844632046797
  • Product Category:Speaker Port Tubes
  • Unit of Measure:EA
  • Weight:1.64 lbs.

WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.
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Customer Reviews
5 stars
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1 stars
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By mpthompson16
Date Added: Tuesday 10 April, 2018
Very sturdy and arrived as advertised. this thing is HUGE had to return the center tube is 434; not the outer cone. Had to return and it was a pain
Rating: [4 of 5 Stars!]
By Antonio Posadas
Date Added: Saturday 10 March, 2018
Sounds amazing. Used one 434; port on two alpine type S 10's
Rating: [5 of 5 Stars!]
By B. K
Date Added: Sunday 17 December, 2017
Worked as expected.
Rating: [4 of 5 Stars!]
By Chris
Date Added: Wednesday 13 December, 2017
Different company, but same part, but built a little better these days.
Rating: [5 of 5 Stars!]
By Trevor
Date Added: Wednesday 02 August, 2017
Awesome sounding port if you can fit it to the box! The plastic is a bit difficult to cut if you want to shorten it but other than that it makes for great sound quality when installed correctly.
Rating: [4 of 5 Stars!]
By Jake Roberts
Date Added: Tuesday 11 July, 2017
It was a bit long, but it comes in prices and assembles extremely easy. Cut it down, measure, put in length to calculator, find your optimum tuning frequency and go from there. My enclosure went from a 42hz prefab, to a 31hz custom. Sounds ten times better, especially on really low bass!
Rating: [5 of 5 Stars!]
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