Analog Upgrade - Where to start?

Dear @karl_desch  : The OP speakers  works at around 10 ohms impedance except for two peaks, one at the midrange resonance frequency ( 53hz. ) and one at 19khz resonance tweeter.

The 60.8 is really fine with those speakers and is very good design. Along the speakers exist two OP system subwoofers.

Main " problem "  seems to me is not down there for what the OP is looking for.

R.

Dear @chilli42 : Do you already tested your 1s in both tonearms? in which performs the better? which impedance value are you trying? do you already tested the 1s with a different impedance values?

which protractor did you use for the cartridge/tonearm set up and which alignment are using with?

Thank's in advance.

R.

The most gorgeous tube sound I ever heard was the Zesto Andros phono stage. The mid line Deluxe is their sweet spot and is very close to the top line just in one chassis not two and can only take two cartridges not four. I would have the Zesto but am very happy with my Atma-Sphere MP-1. Think the Zesto has a more delicious tube sound and can stand up to the phono in the Atma and even pricier ones.
And a destination cartridge for me is my Lyra Atlas SL. The one below Etna is also good.

BTW-Definitely get a SRA platform for the TT. The entry level VR is excellent and the up line is even better. The improvement is not small.

@rauliruegas @rauliruegas I recently purchased the Kuzma 4Point 9 to replace the SME Series V.  I have not used the Series V in some time.  The main reason for the change on Tonearm was that the Kuzma (and I know there are others) has a replaceable headshell.  My intent, along the line of what has been suggested on this thread, is to have cartridges with different sonic characteristics which I can easily switch between (I am not very “handy” replacing cartridges on the SME - the Kuzma much easier).  I did not notice much sonic difference moving from the SME  V to the Kuzma (the SME did have a somewhat darker sound, the Kuzma a bit more lively).  I also have the Koetsu Black cartridge that I have used with my current setup.  In my view it is much more musical than the Dynavector but rather less detailed and dynamic than the Dynavector.  
I have tried the Kuzma/Dynavector at gain of 60/66/72 dB and loads of 60/100/200/47k ohms.  I like the 200 ohm setting best as it gets me a bit closer to the sound I am looking for.

As mentioned I am a bit cartridge setup challenged (I am less steady of hand and keen of sight than I once was). The existing setup that I have was done by a the setup guru from the retailer that I purchased the Kuzma Tonearm from.  Consequently, I can shed much light in the protractor that was used as he had his own gear.  That said, during the setup process he tried many different variables with me to tune the setup to that which best achieved my sonic goals.