RCA compression fitting question - AVS Forum | Home Theater Discussions And Reviews
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post #1 of 7 Old 05-22-2020, 02:41 PM - Thread Starter
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RCA compression fitting question

So I had a Monoprice RCA cable for one of my subwoofers where the connector broke. It’s in-wall so I need to fit another connector.

The cable appears to be generic RG6.

Monoprice Onix Series Digital Coaxial Audio/Video RCA Subwoofer CL2 Rated Cable, RG-6/U 75-ohm 25ft https://www.amazon.com/dp/B071LJ8FK6..._XyeYEb0Q2XRXR

I tried and failed to get new compression fittings to work. I used a compression tool.

Here are the connectors I used:

Construct Pro RCA Male Compression Connector for RG6 Quad, 75 Ohm (Bag of 5) https://www.amazon.com/dp/B071HJ8SFV..._eAeYEb0JQG5JA

And yes I used all 5 through trial and error.

I get sound but also a hum.

I’m guessing this is due to a bad ground. I notice when I strip the black rubber I cut into the copper shielding by accident. Is that the ground that’s missing that causes the hum?

I ordered a stripper to do a cleaner job.

Coax Cable Radial Stripper Klein Tools VDV110-095 https://www.amazon.com/dp/B00BEZWJ6I...i_YBeYEbPY3F52

Just want to make sure I’m on the right path.

Last edited by mkiv808; 05-22-2020 at 02:50 PM.
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post #2 of 7 Old 05-22-2020, 04:47 PM
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Coax can be fussy stuff to terminate. You have to have exactly the correct connectors, stripper & compression tools, & be meticulous about your work. Are you sure the stuff in the wall is RG6? There are other types that are very similar in size & appearance, but are different enough to not work right with RG6 connectors.
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post #3 of 7 Old 05-22-2020, 05:41 PM - Thread Starter
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Quote:
Originally Posted by frankwp View Post
Coax can be fussy stuff to terminate. You have to have exactly the correct connectors, stripper & compression tools, & be meticulous about your work. Are you sure the stuff in the wall is RG6? There are other types that are very similar in size & appearance, but are different enough to not work right with RG6 connectors.

The description for the cable says RG6/U, so I ordered those connections on Parts Express.
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post #4 of 7 Old 05-22-2020, 08:18 PM
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RCA compression fitting question

The only compression connectors I have had success with consistently are the Belden Snap n seal connectors. I use their compression tool and stripper as well. The compression tool is expensive though.

Make sure after you strip the cable you fold the shield back over the insulation. When I first started using these connectors I didn’t do that and I went through about 10 connectors and twice as many four letter words before I figured it out. Also, you sometimes have to push the connector on really, really hard to get it to seat all the way on the cable. That’s why I like the snap n seal connectors because there is a plastic guide that falls out of the center pin when the connector is already seated.

Even when I do it right I still misfire about 10% of the connectors.


https://www.parts-express.com/belden...-pack--092-770


Belden CPSNSCT-596 Compression Tool Snap-N-Seal ProSNS Connectors https://www.amazon.com/dp/B06XXNRYP7..._nojYEb2R1TC94

Not my pic but shows how you fold over the shield. I usually try to fold it over more evenly.


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post #5 of 7 Old 05-23-2020, 06:37 AM
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If you can solder these are great

https://www.ebay.com/itm/152472699039

Honestly learning to solder if you don’t comes in very handy with av stuff
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post #6 of 7 Old 05-23-2020, 07:14 AM - Thread Starter
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Originally Posted by Vince_B View Post
If you can solder these are great

https://www.ebay.com/itm/152472699039

Honestly learning to solder if you don’t comes in very handy with av stuff

I don’t and have thought about it. That will be my next step if these don’t work.
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post #7 of 7 Old 05-24-2020, 06:58 AM
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I have had lots of trouble using the Belden SnapNSeal RCA connectors with my generic compression tool (which worked fine with the generic connectors I couldn't find the last time I needed them) because the fittings are a different length. Not knocking the Beldens...but the proper compression tool is important.

You can also find crimp-on RCA connectors but that requires the crimping tool.

https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
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