It seems you are happy with the speakers themselves, and that is important as they more than anything else define the character of the sound in your room. If the bass is a bit wallowy, as some suggest they think it will be, then if you do decide to keep the speakers look to an amp that will have better 'grip' on those speakers - I don't know enough about the different Naim amp options, however bass control isn't solely about higher power (talk used to be about damping factor, and although that tends to be poo-poo'd on this forum). Be aware that some people seem either not to like to hear the bottom octaves at realistic levels, or feel that no bass is better than imperfect bass - you need to consider your own preferences in taking into account what may be suggested in that regard.
On the subject of source, if you do go down that path it can be beneficial to separate out the DAC, as then you can start to achieve very high quality for remarkably modest expenditure. The Chord Hugo is excellent, and more than a few here have found it beats any of Naim's offerings TT is a bit better, but hard to say its worth double.
With a separate DAC you also need a renderer, and there are a few options. Some suggest the NDX as just a renderer, combined with Hugo, however there are far less costly alternatives: I use a Mac Mini running Audirvana, the MM 'headless' without monitor or keyboard. MM also provides my music store so The music doesn't have to be streamed across the network. But as with any computer-based solution electrical noise is a problem so an isolator between computer and DAC is essential unless the DAC has exemplary isolation - the Hugo doesn't, so I use a Gustard U12. Somewhat more expensive than MM/Audirvana/Gustard but one-box is the Melco N1A, which in a brief comparison was indistinguishable to me, and less expensive but possibly more fiddly to set up is the microRendu plus separate power supply. The is lots on all of these on other threads if you search, and it seems to me on the balance of multitudinous comments that there is little to choose in sound quality between them if the best recommendations are followed, so you could happily pick any one, depending on your view of the balance of simplicity vs cost.
You´re right even to people that are not fun of wifi, speakers sound diferent and are the easy way to show on a sistem.
The sugestion from a good friend of mine ( the one that took me to Naim world ) is to keep the Motive 1, and move to a pair of 135 together with the Nac 72, and then bi-amp, and then tri-amp. For me tri-amp is out of the question, and for bi-amp, first I want to try diferent options and that´s the reson of this post.
I´ll give a try to Hugo like other members sugested, and naim DAC if I can borrow.
Uniti as source is out of question? If so, I can sell it and get some extra cash for the upgrades as I have some ( Arcam and Musical fidelity that can take is place )
I have a Mac Mini and I can go that path together with external DAC, but as things are moving so fast I can try bluesound or even a chepiest solution like iEast with hugo/naim DAC, that I think I´ll be able to DEMO and test at home.
And I still have the pioneer that I can check if I can pair it with DAC and give it a try.
I like datailed music, but sometimes ( very often ) in audioshows what is to be excellent sound ( wich it is ) tends to be to much "information" for long auditions, and somehow all that information given by these exellent equipments ( that are really really good ) makes me tired and head aches in a lon runs auditions ( more than 2 hours ).
This doesn´t happen with Naims, at least 67/135 and 122X/150X that are the combos that I can talk about, I can stay for hours ( and with NAS visit some of the CD´s that I forgot over the years ) without have to rest for a while because my ears and head can´t stand all the info.
In NAIM I have everything as I like and so, I wonder if I can get it better, and that is the problem, always looking for the perfection when sometimes we should stop.
As I told before, In terms of power and speakers this will be the last upgrade ( I hope ) and I´m willing to pay little extra, in terms of source I want a compromise use my CD´s ripped to the NAS and ear new formats like TIDAL wich is new to me, before used spotify.
But if I feel that I´m spending enourmes amont of money, just to move left or right instead of stepping foward I can keep my combo and I can live with it, like some member say, add a NAC A5, Flatcap 2x, DAC and thats it.
One other point, I´m listening all type of music, all type!!!! I cannot have a sistem that outperforms in Jazz and volcals ( normal naim do ) and then when I try Ramstein or African music or even oldies I´ll get disapointed.
I´ll check some of the tops here, I even will check the NAC72/135 combo just in case.
Complete forgot that this will also have to play records with linn axis or a regaplanar 3, or even an thechnics, still equipment that I have.....
Keep the tips comimg in I´l try to feedback you with the evolution!