In article , Wally
wrote:
What's the deal with choosing output powers when tri-amping? If my 3-way
speakers are rated at 50W, and I want to double the number of bass
drivers, what o/p power should I choose for each amp?

Can you say how you intend to "double the number of bass drivers"? Any
anwer will depend upon how you are thinking of doing this. i.e. how are you
going to wire them up, mount them in the same or different cabinets,
crossover/filter arrangements, etc.

At the moment, I'm thinking of 100W low bass, and 50W each for bass/mid
and treble. Won't my T27s freak out if there's a 50W amp dedicated to
them? In the present 3-way setup, how would the power from a single 50W
amp split up in terms of which driver gets what power?

In spite of being unsure of this, I'm presently thinking that an easy
way to do this is a stack of three Cyrus Two amps. That way, I can
adjust the volumes to balance the level to each driver, with overall
output determined by the capability of the low bass section. I could
also compensate for the somewhat recessed mid that becomes apparent at
times.

The problem is that the power ratings for speakers are quoted on an
entirely different basis than that quoted for amplifiers. The speaker's
ability to handle a given power also depends upon other factors as well.

From what I've read, the Cyrus Two is very good at detail, but a little
light on bass. I like the idea of good detail. I'm after bass which is
tight, solid, and very low. It doesn't have to be mega-loud. Maybe the
light bass (be there such) can be compensated for by adjusting the
volume of the low bass amp, or using some sort of filter at the pre-amp.

Am I on a concievably-sensible track with this Cyrus Two idea?

In principle, it may well be OK. But you have not provided enough detail to
be sure.

Slainte,

Jim

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