AZ Nomad wrote:

On Thu, 16 Mar 2006 21:04:18 +0000, Nick Gorham wrote:



AZ Nomad wrote:


On Thu, 16 Mar 2006 20:18:11 +0000, Nick Gorham wrote:




Bret Ludwig wrote:


The moving coils are lighter but put out less energy than the moiving
magnets.



Voltage, maybe, but if you look at the source resistance of a MC, I am
not sure its less "energy".


energy too, but it's not as if your driving your speakers directly.
Fortunately we have an invention called the amplifier.



Yep, you are right, just compaired a Goldring MM and Ortofon MC, MM
about 3.5 times the energy out compaired to the MC.


I'm curious: what unit is that 'energy' measurement? Is it a power
measurement ie: microwatts, etc? I usually think of energy in joules,
power in jules/s or watts. I've never heard of anybody giving a ****
about a cartridges 'energy' measurement; just the voltage output
and recomended load capacitance.

Well, partly I was in pedantic mode with the original comment, but if
(as I do) you use a transformer to step up the voltage of the cartridge,
then it does have some bearing. The load impedance also is important not
just the capacitance. Most MC carts have such low generator resistance
that the capacitance makes little or no difference.

--
Nick