Ok, before I start my install I need to get all my components

I will be running boston Z6 fronts, however from the experiance of many here, they believe these suckers deserve alot more power.

Im thinking about running them active in the new setup

problem is, the amp I have, GT42 boston will only give the z6 mids 125 w rms at 3 ohms per side and the power the tweeters etc

Would I be better off using just the GT42 amp bridged to run the z6 mids at 3 ohms each, which is approx 375wrms per side? then another amp to just run the tweeters? (GT42 is rated to do 300wrms x 2 @ 4 ohms or 450wrms x 2 @ 2 ohms - 14.4v)

the sub will be powered of a GT24 amp giving it 900w rms at 2ohms, and will hopefully be a 12" g5...

basically just wanting to know if im just wasting my time and money by buying another amp to give my system more power, and whether the sub will keep up with the rest of the components, I know this is what the gain settings are for. but just trying to balance the front stage with the sub power
I dont like overpowering bass, but read somewhere that ideally.. the sub should be at least 2-3 times the power of the front's

I'm running 150RMS for mids (woofers), 1000RMS sub, and 75rms for tweeters. that's more than plenty.

That little rule is stupid. Point blank stupid.

I have around 1500W RMS to my front stage, and only 300-ish going to my sub. I can assure you the sub easily keeps up (and sometimes dominates) with the fronts.

Power is like money in the bank son. Better to have it and not need it, then need it and not have it. Always get more then you'll ever need, that way the amplifier will never struggle or approach clipping.

I have around 150W per tweeter, 150W per midrange and 450W per midbass. Make your speakers the limiting factors.....

it's all about sensitivity of the sub also - if you have a 96dB/W/m sub, it will be a lot louder than a 83dB/W/m sub, like almost 3 times louder!

no, not 3 times louder.

remembering that a 10db increase is perceived as doubling the volume.

so a 13db increse is just over double the perceived loudness

if 10db is twice then isn't 15db 3 times, making 13db almost 3 times louder??

its a logarithmic scale

so its good to have, but not really needed most of the time?

Yes. Exactly.

do all amps clip at max power?, do all amps begin to clip at the same % stage of max power.
Why cant he have 125wrms and use 124 wrms.I would try atleast to equal the speakers wrms with the amps wrms if not more than the speakers.but it can get costly.Thats not to say if u have a 125 wrms speakers then s u should get a 140wrms amp channel.You might have to get a 200wrms channel cause u cant find an amp u like with 140wrms channels

For the best view of amplifier delivery power levels, have a look at the Zapco or Arc Audio reference manuals, where they have the power graphs against a distortion level. That gives you a good idea of how power is delivered.

Its not a constant level, because the music isnt a constant tone. It has crashes, peaks and troughs. Only at the very top, does the amplifier call on its 'headroom' to deliver that extra bit of power. That smash of the cymbals, or the crack of the snare.

Music sounds more 'lifelike' when, during peaks such as these, there is no additional distortion or clipping audible. If there is, it destroys the illusion.