So balanced is really the best way to go if one want full power. Realistically most do not need it. Offhand, do you have a comparison to the NCores?

Thanks!!!

Bob,

I made those calculations that bavmike posted.

That being said, I would like to clarify something for others who may be reading.

The NC400,

*most* NC500 builds, NC1200 and the Icepower 1200AS, all have

**26 dB** of overall gain.

They do have different output powers though. That's just another way of saying that they have different output voltages (in RMS).

The NC400 is 200 watts/8 ohms, 400 watts/4 ohms.

The NC500 is 400 watts/8 ohms, 700 watts/4 ohms, and 550 watts into 2 ohms (because the power supply becomes current limited)

The NC1200 is 400 watts/8 ohms, 700 watts/4 ohms, and 1200 watts into 2 ohms (due to a beefier power supply)

The Icepower 1200AS is 600 watts/8 ohms, 1200 watts/4 ohms. For the 2 ohm rating, I can't find a specification, but that doesn't mean it can't handle that load either.

Given that the overall gain of all of these amplifiers are the

same, i.e.

**26 dB** and I have already calculated that it takes about 3.5V RMS (or nearly 5 volts peak) to reach a power of 600 watts/8 ohms,

* that means that to reach powers less than 600 watts into 8 ohms, it will take less input voltage.* Given that most of you have sources that are at least 2V RMS (i.e. CD players, high end dacs, etc...), one need not be worried, you will most likely easily clip any of these amplifiers, even without a preamp. Many of you have sources that are 3, 4, or 5 volts RMS.

What you should be worried about is your hearing and also what your speaker is doing when it is being pumped 600 watts-1200 watts RMS! Many speakers of

average sensitivity at higher SPL levels (greater than 100dB or more), will have compression issues since the voice coil will warm up quite nicely. And your ears won't like that! That's just another way of saying that most of you will have more than enough power unless you are trying to use a pair of Magnepans to play metal in an auditorium

Have fun and play safe!

Anand.