I upgraded the MC275 Mono to MC601 Mono last year and upgrade my C2300 to C500T last monthly. With the MC601 and C500T, my system is now fully balance, impedances and synergy is 100% match by their design engineer team. ALL different music sound amazing without any short fall.
May be you can try upgrade the preamp first. Because the C2300 is not a fully balance unit.
May be you can try upgrade the preamp first. Because the C2300 is not a fully balance unit.