Hi Dave,
It will be a well worthwhile upgrade if/when you do & will be no regrets.
If finances don't permit the 550i's, then you could go with the 330i's & go for 550i/770i Jumpers as i did with my set up as I couldn't afford the 770i cables, & read somewhere that going with the jumper cables from the above cable gave enough benefit without breaking the bank so I went with the 550i-sc/770i-j combo and I'm happy that i did. Just my 2c worth, maybe you can try them out somewhere & see for yourself & by the way the 330i's are nothing to sneeze at, are great cables in their own right & worth a try/listen.
Good Luck.
Cheers,
CR.
It will be a well worthwhile upgrade if/when you do & will be no regrets.
If finances don't permit the 550i's, then you could go with the 330i's & go for 550i/770i Jumpers as i did with my set up as I couldn't afford the 770i cables, & read somewhere that going with the jumper cables from the above cable gave enough benefit without breaking the bank so I went with the 550i-sc/770i-j combo and I'm happy that i did. Just my 2c worth, maybe you can try them out somewhere & see for yourself & by the way the 330i's are nothing to sneeze at, are great cables in their own right & worth a try/listen.
Good Luck.
Cheers,
CR.