Mcintosh C220 pre

Based on my experience with a C2200, break-in should not be a major issue. I left mine running with a CD on repeat and the amps off for several hours per day over the course of a week (plus normal listening time). Preamp tubes last a long time. Some users enjoy tube rolling and find compelling differences. Others do not. You might log on to discussion boards at AudioKarma.org where you will find lots of varying opinions on this very topic. Have fun with it. Skip

Thanks for your time LFB44

Congrats on your purchase. On my C2200 it seemed like after just 10 hrs it was nice and then it just gets a little better and better. I wouldn't think about rolling tubes until you've broken it in and got acquainted with its sound "in your room with your speakers", then ask for some advice one what you want to enhance. Do you have a tuner you could use instead of the CD?

Definately wait until you know what you have before tube rolling. You will stagger around aimlessly otherwise. There is no rush - only time to learn. Take it easy and enjoy your excellent preamp.

Arthur

I have no tuner at this time.
I had a 1 week trial on a Cary slp2002 and found it much more detailed than the 220. On the other hand I found the 220 to have MUCH better imaging and allowed more flexibility in speaker placement. Long story short, imaging, fully functioning remote, auto biasing tubes and Mc-MC synergy were the deciding factors in my decision. I will wait for breakin, time will tell, it may open up nicely.
Another thing I must consider is my speakers (Tyler PD80s). I am thinking of getting into something a little more refined.
Anyway I am happy with the purchase and believe I made the right choice.

Thanks for the advice everyone and have a great day!