Measurements - Clearly Explained


Hi Everyone,

I found a page which explain amplifier measurements which I think many would find useful on the SoundStage web site:

http://www.soundstage.com/measurements/test_amplifiers.htm

They seem to be suffering from bad links. If you get directed to "SoundstageMagazine.com" just remove the "Magazine" part.

One thing a lot of people have questions about are the impedance of "real-world" loudspeakers. This I found at the Stereophile site, here:

http://www.stereophile.com/reference/60/index.html

Of course, this is 1 specific speaker load, but it does represent the challenges posed by many 2-way, dynamic loudspeakers.

Best,

E
erik_squires
Erik, Agon has always been big on "alternate" facts, long before the term came about.  Where else can you find clever lil clocks and pebbles?
Here is a paper I just discovered an excellent paper on Damping Factor from Wikipedia:

https://en.wikipedia.org/wiki/Damping_factor#cite_note-3

which also references a paper from Nelson Pass discussing how matching the amplifiers to specific speakers (lots of full-range and high efficiency drivers could be useful):

http://www.firstwatt.com/pdf/art_cs_amps.pdf

While the paper focuses on HE speakers and using current source amplifiers (i.e. very high impedance output)  I think it's a great way to dive in deep into speaker / amplifier interrelationships.

I'm not sure if I can create a current source amp in Xsim, but it is a fun challenge. :)


Best,


E