Upgrades for the 220 Pro

[Graziano]

Having the 220 Pro with my Audiovector Si3 Avantgarde Arrete, what type of small upgrades can I do around the amplifier? 

Have anyone done some upgrades with
- Power cords or maybe any power isolation like Audioquest Niagara or Ansuz?
- Another dac or streamer?
- Feets under the 220 Pro?


I have:
Homemade power cord
Speakers cables Nordost Heimdall
Sonic design feets placed under the 220 pro
Streaming Tidal from Bluesound Node 2i

I also thinking about to buy one more 220 to get an 440 pro, it seems to be a good upgrade. 

Thank's a lot for some advices, if anyone done some upgrades that improves the sound for the 220 Pro 

[mikdahl]

Firstly: I don´t believe in cables or most of the other expensive tweaks recommended by audiophiles, so take these recommendations with a grain of salt if you don´t agree...:

Speaker position (if you´re happy with your speakers) and room treatment is what makes a real difference! I´m about to start measuring my room with a miniDSP Umik-1 microphone and REW software (free) and then give Sweet Room a try (although I hesitate a bit, being afraid that this might be a somewhat cumbersome process...).

This being said, when I had trouble connecting my second 220 for a while and therefore only was able to listen to one of the amps, I noticed a big difference (I went from McIntosh + Audio Research straight to 440, so I hadn´t listened to a single 220 before). When I sorted it all out and reconnected the second amp, everything "opened up" again. So, it might not be the answer you would prefer, this being a rather costsome investment (although you can get them real cheap nowadays compared to the original RRP), but adding a second Devialet is a real upgrade soundwise.

Best regards,
Mikael

[Graziano]

Firstly: I don´t believe in cables or most of the other expensive tweaks recommended by audiophiles, so take these recommendations with a grain of salt if you don´t agree...:

Speaker position (if you´re happy with your speakers) and room treatment is what makes a real difference! I´m about to start measuring my room with a miniDSP Umik-1 microphone and REW software (free) and then give Sweet Room a try (although I hesitate a bit, being afraid that this might be a somewhat cumbersome process...).

This being said, when I had trouble connecting my second 220 for a while and therefore only was able to listen to one of the amps, I noticed a big difference (I went from McIntosh + Audio Research straight to 440, so I hadn´t listened to a single 220 before). When I sorted it all out and reconnected the second amp, everything "opened up" again. So, it might not be the answer you would prefer, this being a rather costsome investment (although you can get them real cheap nowadays compared to the original RRP), but adding a second Devialet is a real upgrade soundwise.

Best regards,
Mikael

Thank you very much Mikael for your reply. I think I have the same opinion about cables and so on. As you say, speaker and listening position is really important. I have been thinking about to go for a second 220, so maybe I will go for it if I find the right price. 

Thanks/Graz