Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: I want to mount the playbar underneath my tv that's on a swinging mount. Anybody use the Sewell SW-29908 (or other bracket) with this successfully?
Document: If you want to mount your playbar this a must. Sonos created a mount that equals the high quality of all products. They even included an extra screw and small level. It's that extra customer service I like.
This was just what I needed. I would suggest you guys offer this wall mount in white. Just to have one additional wall mount installed  in my living room just in case I want to move the playbar for a special ocation.
Does it's job! Very sturdy mount that holds our Sonos Playbar under the tv. Allows sound to fill the room while holding the sleek Playbar for all to see. Cannot see the mount, which is even better!
I finally got around to mounting the soundbar, figured it was going to be a pain and it was easy enough to leave the bar laying on the table in front of the TV. I open up the box, and fairly quickly I can see that this is another thing from Sonos that is well thought through. First, they provide a template that is exactly the same size as the soundbar with markings for all of the possible center locations you might want to use.
The bracket works (not really a surprise I guess). It is fairly beefy and well made. The reason for one less star is that, even though there are quite a few slots for the screws to go through, I had to drill and countersink a couple extra holes so that I could hit my studs in the wall. Would it hold in drywall (only)? Probably, but I decided to use studs....
The Playbar is a great sounding bar that was easy to connect to my TV. It does sound much better hanging on the wall above or below the TV though, as opposed to laying it on the mantle, or on the shelf of the TV Stand that you have the television setting on. The drywall anchors that they give you, I don't care for, so I always use something stronger from the hardware store.
Thats all there is to say. Great bracket, use the included template, fix the bracket and fix the soundbar. Very easy.
I am a huge fan of all Sonos products and in fact own every unit they make. I bought the sound bar and tried to mount it with off the shelf hooks, etc. Not a good solution. This bracket does the job very well. Is it frustrating that the bracket is not included with the expensive speaker: definitely! . In fact, you can not even find these in stores. That aside I recommend springing for it. Super easy to install and you end up with a very clean look
I have found the Sonos products to be top quality. They are my new favorite speaker products. No longer do I need to pre-wire houses for multi-room audio. The Sonos line of speakers eliminates that. All that is needed is A/C power.The wall mount bracket is just as well made and packaged as the speakers are! Included is a full size hard cardboard template and mini level. The level was accurate when using 2 sides of it, but the 2 other sides were out.
I wanted this playbar to mount right beneath my 55&#34; television. The mount itself is made of quality material and super thin for a low profile appearance. I'm so happy I made this purchase.
Answer: I used an optical cable on a swivel mount with no issues. I twist tied it to my cable TV co-ax and it has room to move.  jUst make sure the cable is long enough to allow the TV movement.