Port Tube 1" ID x 4" L Flared

Speaker Cabinet Port Tube 1" ID x 4" L Flared

Overview
This high-quality port tube features an external flare for reduced port turbulence and enhanced aesthetic appeal. Perfect for tuning small high-performance bookshelf or micro speakers. Ports are a press-fit style and can be trimmed to length if needed.
Part # 
260-470
Weight: 0.05 lbs.  
IN STOCK
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$1.98
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Part # 260-470
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Product Details

Speaker Cabinet Port Tube 1" ID x 4" L Flared
This high-quality port tube features an external flare for reduced port turbulence and enhanced aesthetic appeal. Perfect for tuning small high-performance bookshelf or micro speakers. Ports are a press-fit style and can be trimmed to length if needed. Requires 1-3/8" opening. Overall diameter is 1-5/8".


Speaker Cabinet Port Tube 1" ID x 4" L Flared
  • BrandParts Express
  • Part Number260-470
  • UPC844632054266
  • Product CategorySpeaker Port Tubes
  • Unit of MeasureEA
  • Product Rating
    (10 Reviews)
  • Weight0.05 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

Speaker Cabinet Port Tube 1" ID x 4" L Flared
Speaker Cabinet Port Tube 1" ID x 4" L Flared is rated 4.7 out of 5 by 10.
Rated 5 out of 5 by from For such a basic thing it's greatOkay, a bass port is just a plastic cylinder but these seem to be be made very well and there are no unsightly seams. I drilled for a very snug fit and I used a rubber mallet to gently pound them in, this worked fine. They fit in such a way that they don't rest flush against the outside, but extend just slightly where the lip flares out.
Date published: 2014-08-29
Rated 5 out of 5 by from Adds nice bass extensionTwo of these on each speaker DRAMATICALLY improved bass on a pair of Yamaha NSA-6490's! A easy to install well-made product. Highly recommended to convert asmallish pair of bookshelf speakers from a acoustic suspension (sealed box) to bassreflex design.
Date published: 2014-01-22
Rated 5 out of 5 by from Perfect for small Yamaha speakersI added two of these to each in a set of Yamaha NS-6490's.  One just above the woofer situated between the tweeter, midrange, and woofer.  The second port was added above the tweeter and midrange so it is centered vertically with the first port. What a gigantic difference in bass response and sheer volume of the bass.  These have brought out the hidden full-bodied sound reproduction of these bookshelf speakers.  Adding a generous amount of well-placed acoustic dampening foam inside the cabinets makes for smoother bass as well.  My personal "like them rating" has moved up from OK to Very good (from a 5.0 to a 8.75).  A friend with a stock pair brought his over for a "A-B" comparison and after he switched back and forth between his and my modded set he said, "I can't believe this", then asked me, "What the xxxx did you do to yours?!", and  "Will you do that to mine?".  I also padded down the midrange with three 5 watt cement resistors in series, two 4 ohm & one 6 ohm, and padded down the tweeter with two 4 ohm 5 watt cement resistors in series.  This cured the midrange and treble heavy nature of this model. and the ports nicely took care of deficient bass.  Now they are very well spectrum balanced and truly impressive for their size.  I highly recommend these ports for improving smallish acoustic suspension (sealed enclosure) speakers.  If they have at least an 8" woofer I recommend using two per enclosure placed front firing.
Date published: 2013-11-29
Rated 5 out of 5 by from Thee things are great for the priceI've purchased maybe 12-15 of these ports and they are always consistent in quality. It should be stated in the description that you need to drill a 1 3/8" hole for these.
Date published: 2013-08-15
Rated 5 out of 5 by from Nice port tubeThis is a nice port tube. It's made of strong plastic, so I can see it being quite durable in the long-term. The outside is flared, which really helps to reduce port noise. They also look quite good in a finished speaker box.
Date published: 2011-10-26
Rated 4 out of 5 by from Looks nice.attractive affordable port.
Date published: 2008-12-12

Product Q&A

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Speaker Cabinet Port Tube 1" ID x 4" L Flared

What is the diameter of the non-ported end?

Asked by: Aeon
The diameter of the non flared end is 31/32" ID.
Answered by: MattP
Date published: 2013-01-01

How would I calculate the length for a flared port? I understand a flared port can be shorter than a non-flared, but by how much?

Asked by: Geoffrey
Flared ports need to be longer then their un-flared cousins. Adding 1/2 the length of the flare section of the port to the non-flared section of port will get you very close to the total port length.As you increase the cross-sectional area of a port you need to make it longer if you want tuning frequency to remain fixed.
Answered by: mtg90
Date published: 2014-04-13

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