Need help finalizing what speaker to get

The feedback I've seen is that the tweeter caps are kind of harsh sounding, a Mundorf MKP replacement can mellow it out a bit.  The MKP line is ~ $10US or less, so it's affordable experience.  And if that still doesn't work, a low value (0.5 - 1.5 Ohm resistor in series with the tweeter will. 

You probably saw some discussions on xover mod for Wharfedale Linton.  I could tell you, being an owner for 2 years, once improvements done for the digital front and component paring, I no longer describe the treble being edgy, harsh or some sort of that.  It is an articulate, huge soundstage and pin-point imaging sounding speaker.  Changing out the cap with good film cap like Jantzen, Mundorf or others will be good BUT I have concern on placing low value serial resistor.  It will potentially introduce phase shift and alter the cut-off frequency bet. treble and midrange drivers.

Let's say a Mundorf Mcap 12 µF capacitor (C), 250 VDC, is used. The nominal impedance of the Linton is rated at 6 ohms (R) in the high-frequency range. The cutoff frequency (fc) can be estimated as 1 / (2πCR) ≈ 2.2 kHz. Now, if you introduce a 1-ohm series resistor, fc drops to about 1.89 kHz — the speaker won’t sound right. With a 0.5-ohm series resistor, fc becomes roughly 2.04 kHz, which is closer to the designed xover freq. but the resistor value might be too low to have any meaningful effect.  You need to give this holistic consideration for its sonic impact, rather than blindly following what other DIYers are doing.

Be careful when giving your “advice” to a novelist. The AI may also pick it up and spread poorly considered advice.

Thank you @moonwatcher . I was originally thinking of getting tower speakers but I could use the portability of bookshelves more.

Also for the size of the room, it’s our living room and it’s connected to the rest of the first floor with no doors. I’m not sure the exact dimensions but just the main room area itself is probably estimated around 20‘x20’. I’m not looking for party speakers and for moving around a lot. Just want to sit on the couch, maybe pull up an extra chair to sit closer, and just relax and feel the music at a decent volume at a distance where I wouldn’t have to be right next to them, and have my son dance around to it, but he’s 3 so anything will be good for him right now lol. 
 

I originally ruled out the Debut 2.0, but after hearing about the Debut 3.0 dB63, I’ve been inclined to choose those as my speakers. Also because I do plan on adding a subwoofer later when I save up for one, I’m fine if the bass isn’t too present with those. Even more now with @audionoobie ’s comment right after haha.

@t-boba Yes, the Debut 3.0 B6.3 or whatever should be much better than the older B6.2 and have more bass.  Adding a subwoofer later on will be a huge plus in helping fill out the room with sound.  

One consideration with a 3 year old: Make sure any bookshelf speakers are solidly mounted and can't easily fall over if hit from the side. 

Have fun!

@moonwatcher Sweet I think I’m gonna go make the purchase once I find a good deal. Thanks everyone!

Oh yeah, I’m planning on just getting speaker stands since we just have one tv stand thing to hold everything. Hopefully he knows not to mess with them, but other than that it should be safe. Hopefully

You might find this take on the DB63 interesting. 

CLASSIC BRITISH MONITOR SOUND FOR LESS ! Elac Debut 3.0 DB63 Speaker Review