New floorstanding speakers for Sonos Amp.

I’m confused - if your system now sounds worse than your old system, why would you blame the speakers? Surely they’re the one thing that can’t be blamed...

I am not blaming the speakers, I am just trying to improve the quality of the system as a whole. Since I don’t want to replace the amp, I am thinking of replacing the speakers.

@Kumar: It is either Tidal lossless or local lossless from my NAS.

Most audiophiles will tell you that you are already on the slide to poor quality sound hell using this source instead of expensive thick interconnects, by losing detail and clarity using this source with all its conversions from analog to digital and back that cause losses and distortions, with wireless as a medium of transmission compounding the error. And they will say this without a blind test, with as much conviction that you are carrying about your comparative testing which is not even strictly comparative being based on memory which is known to be universally fallible when it comes to heard sound quality. And that is all before all the biases hardwired into the human brain come into play.

I would be very careful in spending money replacing existing speakers on some memory of how they used to sound earlier. 

Replace them by all means if you don't like the sound they deliver a month down the line. In HiFi but equally erroneous terms, think of that time as that the amp will take to burn in

On the other hand, if you are married to a woman, waiting carries the risk of never being allowed to bring back the mess of cables and boxes that were involved in your earlier set up.

If you do want to make a speaker change though, my two bits worth based on usage of both floor standers and stand mounted speakers.

I have found that in the case of floor standers one is paying a lot more for what is essentially HiFi branded and therefore expensive cabinetry. In addition, many suffer from bass bloat/inaccuracy. I have found much better results from quality stand mounted speakers - for example something like the Harbeth C7 units. 

I have even obtained excellent results from cheaper stand mounted speakers like the Quad 11Ls or Dali Zensor I units, properly placed. Any shortcomings that these may have in the bass area is easily made up via the Sonos Sub, using the small satellite speakers + Sub philosophy which I have found gives results as good as well made floor standers and better than many poorly made ones.

I have also obtained excellent results from a play 1 pair + Sub, with the speakers properly placed and the Sub placed between the two, after Trueplay tuning is done.

In your case, if I really wanted to make a change, I would replace both the amp and speakers with a Sonos 5 pair, also properly placed, and a Sonos Sub. The added benefit would be a further reduction of messy cabling.

If you have the time, read this thread that may offer some insights - even if it does not, it is entertaining.

https://en.community.sonos.com/components-228996/sonos-connect-vs-bluesound-node-2-my-personal-experience-6807202

And the latest comments on it are relevant to your amp situation, even though they may not be of much objective value.

Ha ha. Please rest assured that I am not one of those gold-cable fanatics out there. I do use some good speaker cables but they are just decent enough to last forever, and I have no intention to change.

I have heard some good bookshelves with astounding bass, Elac BS243 for example, and I know adding a sub is also a good choice. But I prefer the simplicity and also the majesty of floorstanders - no stands needed. And when you have kids at home, floorstanders are also safer than having two thousand bucks on mounts.

Your Sonos 5 + sub is not suitable for me because I also need the amp for movies. I have two Play:1 as rear speakers. And when I said 3000$ I mean new speakers as a reference. Actually I am thinking of buying a good secondhand pair, which means the price will roughly be equal to two Sonos 5 and a sub.

The majesty you refer to is a visual thing that does not drive sound quality except psychologically. 

I get the kids thing so I take that point about the risk of speakers toppling over, with a risk to more than just the speakers. Make sure the kids don't put their fingers or other stuff through the drivers though - especially the dome tweeters.

Certainly. Good looking speakers can be good decoration too.

About the kids, you are too years late. My son already poked the CM7’s aluminum tweeters. Paid a hundred bucks to replace the perforated one, and is still making peace with the dented other.

If the Lindemann DAC/Creek Destiny is better sounding than the Sonos Amp, replacing your speakers with “better” ones won’t bring back the lost sound of the aforementioned combo.  
 

How many hours of use have you put on the Sonos Amp?  It does sound better once you’ve hit around 100 hours.  I’m using a couple Sonos Amps that replaced “high-end” amps and the convenience and ease of use greatly outweigh any loss of fidelity, if any that I have experienced.

I know it won’t, but better speakers can still deliver better sound, in a different way, can’t they?

I think less than 50 hours. But I am not a believer of burn-in theory, anyway.