Tony,
I am very skeptical about "tweaks" but i upgraded because someone i trust recommended it. I upgraded the 6H30 tubes to REFLEKTOR 6H30 dr tubes and i was extremely taken. The soundstage opened, more detail, and i could here instruments more distinctly yet they seemed more connected. This was one of the biggest upgrades in sound i have ever heard. Your investment will be smaller ,I had to buy four because i have the cd-3 so you will undoubtedly get a similar improvement for less. Do it!
I am very skeptical about "tweaks" but i upgraded because someone i trust recommended it. I upgraded the 6H30 tubes to REFLEKTOR 6H30 dr tubes and i was extremely taken. The soundstage opened, more detail, and i could here instruments more distinctly yet they seemed more connected. This was one of the biggest upgrades in sound i have ever heard. Your investment will be smaller ,I had to buy four because i have the cd-3 so you will undoubtedly get a similar improvement for less. Do it!