Do I need a subwoofer?

@mijostyn my preference for now is no sub.

cheers.

@soix it was so loud in the old Barn. The UC is nice but……the washrooms are a lot nicer lol.

By and large a sub is a good idea.  Most 'full range' speakers are not quite full range.  However, consider that many people run stand mounts happily.  To my way of thinking either get a good sub or just run with what you have.

Two (or more) subs or just one?  There is an overwhelming consensus that multiple subs are better than one.  This obvious truth is unhelpful.  The issue cannot be seen in a vacuum.  First up, there may be space issues.  Second two subs will cost more than one.  I consider it better to get one better quality sub.  On the other hand it may actually be easier to locate two subs than one.  This is on the basis that you cannot get a perfect location for one sub.  Now you really do need to get two subs.

Now, what brand of sub?  I guess reputation and reviews and forum opinions are very helpful.  Let me add a bit more: try to get a sub that will integrate with your system - ie integrate with your amp and your speakers.  Here are my tips:

First, if possible get a sub that takes high-level input.  That is to say it takes the signal from the power amp rather than the pre amp.  (Not a big deal if you have an integrated).  The reason is that your sub and your speakers will share the exact same signal.  This is better because the signal from the pre-amp is a little different than the signal from the power amp.  This is strikingly obvious if you had a solid state pre and a tube power amp.

Second, try to match your sub and the power amp.  If your power amp runs SS with mosfets, then a sub with mosfets would be ideal

Third, try to match your sub with your speakers.  So: paper cone - paper cone; carbon fiber cone - carbon fiber cone (what I have).  Ported design - ported design; sealed cabinet - sealed cabinet.

Best of luck

 I really appreciate the input as I put my audiophile research hat back on.

If you actually do research, as opposed to going with the majority status quo then you will read up on DBA and find that compared to the importance of using 4 subs the choice of which subs to use hardly even matters. The truth is if you stick with one or two there are no one or two ever made that will be as good as any 4 you could buy at random.

Do the research, you will see.

@jerryg123 , that is certainly the easy way out. You will just have to live with more distortion in your main speakers and very little if any bass below 40 Hz and please don't quote specs. 1 meter is a lot different than 12 feet in a residential room.

For many this is the better way to go. Without digital bass management integrating subwoofers can be a real PITA and commercial subwoofers other than Magico's Q subs and perhaps one or two others are pretty bad. I listened to a smallish monitor system last weekend and it was surprisingly good excepting there was no low bass. I can understand why many people would stop there. Those monitors were better than any tower speaker I have heard.