Bi-amp with same sort of amp?

Well, I carried out an experiment yesterday. I connected
one channel of the big class A amp to a full-range speaker,
the other speaker was connected to one of my homebuilt mono-blocks. Yes, the amps in question have different gain,and one inverts the signal and the other does not.They also have
different tonal characters, and as I mentioned before, to me
they have different timing or pace, especially in the lower register.
The result of the study: it didn´t sound good at all!
I tried to be open-minded when listening, but the sound was
confusing, in my ears. Interesting is, that I used one of
the monoblocks together with a smaller monoblock for a period(as I was updating the other home-brewn monoblock),and while they too had different gains(my tube preamp doesn´t have abalance control), the result was quite nice!And, to me, those amps have almost the same pace in their presentation.
The VMPS electronic crossover that I own, has gain as well
as attenuation,for each cannel, therefore different gain
in the amps that I will use for the lowest register, and the rest of the system, should not be a problem.

I think I begin with a good amp for the upper register,
i.e. from about 65 Hz and uppwards. Then I will try different amps for the lowest register, thus checking if the
registers blend together.Patmatt,I fully agree to your last sentence!

Regards
Håkan

Reason for asking is that I have experienced different
timing or pace in the same music, when listening to different amplifiers. E.g. I have a 100 w Class A amp
which is somewhat slower in the lower register, than
my home-built monoblocks, all are solid state ones.
The monoblocks have real good ability in the bass region,but as I built them more than 15 years ago(and although I have updated them), I dare not use them with the new speakers and in the long run, because of risk of ampfailure,which could be costly as this loudspeaker-project isn´t a cheap one.
(So, they may retire in the bedroom system).

Like you , I thought that I could buy a cheaper amp for the
subs(consider my loudspeakers as a sub- satellite system).
But I may rethink the idea of using different amps in the system. And that because I´m very sensitive to the pace of the music.
On the other hand, using top-class amps even for
the lower register, will cost a lot of money.

(I have played some music myself- if that matters).

So, if I state my question more clear,can you say that the
more complex a system gets, the more unpredictable it becomes. From that followes, that the possible combinations
of amps and cables and room treatment, whith a complex system,may never be optimized. Or, that at least it will take a very lot of time to get near your goal?
And are there some more experiences and opinions to this matter?
Of course,even if someone has failured, while trying to
combine different amps for bass, mids, and treble, in a synergetic way, please let me know!

Regards
Håkan