Port Tube 1-3/4" ID x 4" L

Speaker Cabinet Port Tube 1-3/4" ID x 4" L

Brand:| Model: PT-304
Overview
Give your cabinets a professional appearance with these attractive, black plastic port tubes. When properly tuned, the port contributes significantly to the low frequency output of the speaker system.
Part # 
260-407
Weight: 0.08 lbs.  
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Part # 260-407
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Product Details

Speaker Cabinet Port Tube 1-3/4" ID x 4" L
Give your cabinets a professional appearance with these attractive, black plastic port tubes. When properly tuned, the port contributes significantly to the low frequency output of the speaker system. Flange outside diameter is 2-1/2", cabinet cutout required is 1-15/16".


Speaker Cabinet Port Tube 1-3/4" ID x 4" L
  • BrandGoldwood
  • ModelPT-304
  • Part Number260-407
  • UPC643420760033
  • Product CategorySpeaker Port Tubes
  • Unit of MeasureEA
  • Product Rating
    (6 Reviews)
  • Weight0.08 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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Reviews

Speaker Cabinet Port Tube 1-3/4" ID x 4" L
Speaker Cabinet Port Tube 1-3/4" ID x 4" L is rated 4.5 out of 5 by 6.
Rated 5 out of 5 by from PerfectThis is exactly as ordered. Works well in my DIY bookshelf speaker.
Date published: 2014-03-27
Rated 3 out of 5 by from Qualified recommendationI used this port tube in a TWC-0.50 cabinet as a last resort since the Precision 2" port tube kit was not useable in this cabinet.While its installation does indeed look professional, its 4" length is a problem as calculations for port length called for a port of around 8 inches. I spliced two of them together which also had the benefit of an internal flare as well as the external. In this spliced configuration they work fine and I would recommend this port with qualifications if more than 4 inches is required. I would also recommend that this port tube be provided in various lengths as it is easier to cut it down than splice it for proper length.
Date published: 2013-07-04
Rated 5 out of 5 by from Perfect FitI put these into an electronic piano stand/cabinet that I custom built. Perfect Fit for 1.75 hole. Great sound from my 8" woofers.
Date published: 2013-04-09
Rated 5 out of 5 by from AmazingThis is the best my 36 year old Utah speakers have ever sounded. With 12" woofers (treated cloth surround) the bass has always been tight but lacking. I used one of the many on-line calculators to get the tube size and length. Most recommendations were for a larger tube size to prevent air noise in the tube but they would be too long for my cabinets. I mounted these in the back of the cabinet since the front cloth wasn't removable. Upon firing them up I had to turn off the Loudness and drop the bass equalizer to half what it was and the bass is still louder.
Date published: 2010-02-05
Rated 5 out of 5 by from Port or no Port.When I build my cabinets I like to give them a professional finish and these do the trick.I have seen other manufacturers cut costs by just hot gluing a cardboard tube in there cabinets. OK, so its just a port that is hidden anyway, but should the grill come off, well then there you have it. They are also easy to cut down to the length you need for proper tuning. Good durable plastic. All in all, an inexpensive pro finish. I recommend you hot glue it in place as well.
Date published: 2010-02-02
Rated 4 out of 5 by from Excellent ProductFor what I wanted, this port fit the bill. I was looking for a large lip and this was the one in a size I needed. The tuning was right on.
Date published: 2008-07-13

Product Q&A

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Speaker Cabinet Port Tube 1-3/4" ID x 4" L

What is the depth of rebate needed to flush mount the tube? Thanks.

Asked by: usw10
This port does not have much of a flat edge for flush mounting, its a hair less than 1/16" or about 1.5mm and is slightly tapered.
Answered by: MattP
Date published: 2013-10-29

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