I have a MC275 with similar tube compliment as your 2275.
You might try upgrading from the stock tubes which are mediocre at best.
I suggest replacing the KT88 power tunes with Genalex Gold Lions and the 12AX7 and 12AT7 tunes with Mullards, Amperex or Telefunkens. The Full Music brand 12AX7 tubes have been getting excellent reviews.
The result of the tube upgrade is greater detail and clarity, significantly improved dynamics and dramatic and tight bass. The tube upgrade improvements are not subtl and makes you wonder how the 275 series can get such good reviews without them. With them the Mc gear is far from laid bac;, although ont in-your-face either.
You might try upgrading from the stock tubes which are mediocre at best.
I suggest replacing the KT88 power tunes with Genalex Gold Lions and the 12AX7 and 12AT7 tunes with Mullards, Amperex or Telefunkens. The Full Music brand 12AX7 tubes have been getting excellent reviews.
The result of the tube upgrade is greater detail and clarity, significantly improved dynamics and dramatic and tight bass. The tube upgrade improvements are not subtl and makes you wonder how the 275 series can get such good reviews without them. With them the Mc gear is far from laid bac;, although ont in-your-face either.