POLK CSI A6 Center Channel, where do I get some replacement cardboard tubing?

abc5

Hi. Guess I will post this here.

I've got this center channel, I was watching this handy youtube video to see how to open it up as well as see what its internals are about.

https://www.youtube.com/watch?v=E-lxErO5QKI

Here's my issue...

Found out some mice got inside and made a mess.

They chewed up the left side cardboard tube... which seems to be just glued onto the box on the inside back of the wood box.

I also want to throw away the original insulation blanket and toss in some better quality fill.

I am open to any suggestions on this!

Of course I still have to fire up this speaker to hear if it still works!

abc5

UPdate.... oh, they are called 'port tubes'...

I looked at venerable parts-express...

which one might I consider?

https://www.parts-express.com/search?keywords=port tube&order=relevance:desc

kinda can't believe Polk used cardboard tubes.

pitdogg2

Call Polk CS and ask if they have a replacement first. Doesn't hurt to ask. Many many manufacturers use cardboard, it just needs to be a certain length and diameter. Doesn't need to be very facy to get the job done.

abc5

Hi, thanks. I sent them an email since it's the weekend I assumed they don't have phone support. The tubes are only about $2 each for plastic... It's the insulation that costs more I think, given the volume I'd need as well. Tempted just to order what i need and likely get it faster than any possible CS support, perhaps.

pitdogg2

Call Polk CS.

RyanC_Masimo

Hey abc5, definitely give us a call so we can see what we can provide to you in terms of support for this. You could use a third party port to replace the stock port but if we have the means to assist you, we'd be happy to do so.
800-377-7655 (Product Support)
Mon - Sun: 9AM - 9PM EST

pitdogg2

Thank you Ryan !!

abc5

I made the call, and there are no parts available, so I am on my own.

For one of the two port tubes, about two inches was still existing, so I used my hand to rip it out from where it was glued onto the frame of the back cabinet. Then I was able to measure the diameter of the cardboard tube. It appears to be 1 7/8" inches. Now I just need the length of the tube, which I've no information on.

The tweeter's port tube is intact. I just dunno if its length is the same as the tubes for the woofers, which I am in need of.

abc5

so I mentioned I tossed away the original batting.

I think I'm to purchase this: https://www.parts-express.com/Sonic-Barrier-1-2-Acoustic-Foam-w-PSA-18-x-24-260-520?quantity=1

Should I line all inner sides of the cabinet or just the floor, like carpet the floor of the cabinet?

pitdogg2

Too much of that will suck all the life from the speaker. Usually it's just a square behind the woofers, start with a 5" square. I'd also purchase some dacron batting if that is what originally was in the speaker. We usually use the square as well as the original dacron from the factory.

abc5

Hi Pitdogg2, thanks for your insight here...

last night i put in a order for this:

https://www.aliexpress.us/item/2251832756931484.html?spm=a2g0o.detail.1000014.31.609629b8zLTEUM&gps-id=pcDetailBottomMoreOtherSeller&scm=1007.40050.362094.0&scm_id=1007.40050.362094.0&scm-url=1007.40050.362094.0&pvid=c23e6a82-6bff-42d6-98ef-ed2bf75948a4&_t=gps-id:pcDetailBottomMoreOtherSeller,scm-url:1007.40050.362094.0,pvid:c23e6a82-6bff-42d6-98ef-ed2bf75948a4,tpp_buckets:668#2846#8116#2002&pdp_npi=4@dis!USD!6.00!4.98!!!6.00!!@2101ea7117013117008361662e82bc!12000018644714335!rec!US!!AB

The original sheet from what I could remember, was folded upon itself, so possibly somewhat of a double layer.

it seemed to also be dotted glued via two spots, onto the floor of the cabinet.

There was not anything placed behind either of the two woofers.. are you suggesting a 5" x 5" square cut of this material... glued to the back of the woofers?