Maybe under the monitor wasn’t the right wording. I am thinking of a setup where the monitor is on an arm and the bar can go beneath it. I have mostly seen long sound-bars or bluetooth speakers that are battery operated however I was at Costco and held a Bose Solo up to a 27” monitor and the fit is perfect. They are about the same width.
The sound bar in question "is about the same width" as a 27" (presumably the standard diagonal measurement) monitor, so not near 36" of separation between the L/R channel drivers. Granted, most people wouldn't sit 36" away from a 27" monitor, especially if it's 1440p or higher.sitting ~36" from a 36" sound bar should be plenty of channel separation. that's how far apart my speakers are anyway.
oh i thought you were responding to me.The sound bar in question "is about the same width" as a 27"
Most people who want a sound bar are not concerned with a traditional setup! They have their hearts set on a soundbar! I have no idea why people try talk the OP out of what he wants!Yes you could do that, but often if people are spending enough for a decent sound bar, they'd get more bass out of a traditional setup with a sub.
Personally, I would not factor in the size of a 27" monitor unless you want to be married to that size forever. Except for electronic failure, a sound bar should easily outlast any particular monitor.
I'd still go with separate L/R speakers, so they can be spread further apart for better L/R channel separation. On the sides of a 27" monitor rather than under it, seems a much better position to me unless you're using super small cart-desk-something setup that just isn't wide enough. I did face that myself once and mounted a wider piece of wood to the back of it to put the speakers on, painted of course so it matched.