I just recently picked up a Beocord 9000

My question is about the reliability of the auto-calibration functions.

I'm assuming the following:

The CCC will adjust tape type, tape EQ, tape bias, tape Level (Dolby Calibration)

Am I correct in this?

Second, how fine is the bias adjustment? Is it adjusted to a preset internal setting for a particular tape type, or is it adjusted to produce the best response, irregardless of a "standard" setting.

Example, I have a Denon deck, that has a standard bias setting for each of 3 tape types.

I also have my Nakamichi's, which either use a 15khz tone, to allow a manual bias adjustment, or have an automatic adjustment process. This allows a precise adjustment between every tape.

I guess what I'm asking is, will the Beocord 9000 be able to adjust Rec Bias from one tape to another, even when within the same "family", or does it apply a generic bias setting according to a specific tape type.

Second, how well does the automatic calibration hold up over the years, what are the chances that my deck's calibration functions are not accurate due to age.

I ask this, because of my experience with Nakamichi, as due to their age, the decks like CR7A with automatic calibration need to be re-adjusted to bring them back to spec.

I apologize for my long winded question. I just want to get the most out of my new Beocord.