Mini Monitors - Dynaudio and JM Labs

Goatwuss: I missed your post in which you wrote: "Aktchi - We are not talking about low frequencies, we are talking about high frequencies above 25khz. I certainly agree with you about the low frequency point..."

Clearly, you missed the whole point. It had nothing to with low or high. It was that an inaudible frequency, in the presence of another frequency (which may or may not be audible), can produce audible effects.

Take your favorite 25 khz. If you had 25 khz and 15 khz present simultaneously, their combination will produce 10 khz and 40 khz, the former of which will be audible.

Heck, if yo uhad 25 khz and 35 khz present simultaneously, both inaudible, their combination will produce 10 khz and 60 khz, the former being audible.

These are trivial example, actual music contains much more complex superpositions.

Aktchi - Can you please refer me to a reputable source explaining this phenominom?

Also - For clarity, the "original" dispute was whether or not a tweeter claiming 40khz has "higher extension" than a tweeter claiming 25khz. Your point that "Take your favorite 25 khz. If you had 25 khz and 15 khz present simultaneously, their combination will produce 10 khz and 40 khz, the former of which will be audible" may be true (I'm interested in learning about this if so), but it is not relevant to "high-end extension"

Islandflyfisher,
Congratulations on the new speakers! I hope you love them as much as I love mine!! Happy listening!!!

Goatwuss: The phenomenon is called "superposition of waves" and is basic to all physics. Any college level text should have it.

maybe my post comes a bit late but just hope to help anyone who reads this.

i used to own dynaudio speakers. audience 60 and contour 1.3. they are both good at dynamic, open, imaging and bass punch. piano reproduction is always superior. but the tweeter, sorry to say, sounds less smooth to me, to the extend of harsh maybe. so violin and strings always sound a bit sharp and strain. it's very easy to give you a very good first impression but listening at it longer at home you may feel the sound overall is a bit hard and tired. and the tweeter needs big improvement.

was thinking to upgrade to the new dynaudio C1 but only a few minutes of listening at showroom i was surprise to find out the tweeter still sounded more or less the same.

then i got the micro utopia be on smu stands. overall comparing to dynaudio, it sounds light, easy and comfortable. the be tweeter is HEAVEN! it's so smooth and extended which makes the whole presentation airy and transparent. midrange is HEAVEN as well. smooth and so much definitions with a warm touch. violin or anything with strings sounds like a breeze. it helps reproduce piano as well. the top and midrange are steps better than dynaudios and many other brands to my ear. but, it's not perfect. the bass is far inferior than dynaudio. even my $600 audience 60 can produce much better bass punch and extension than the $6000 micro utopia be. most of the time, unless really good recorded audiophile CD, the bass punch for micro utopia simply doesnt exist. you can easily hear that the top is perfect, midrange is perfect but then the bass roll off sharply from maybe 150hz. it's pretty surprised that after you spend $6000 then find out the bass is missing.

imho, a sub for micro is a must just in order to complete the whole picture. now i am considering a REL Stadium III. i would love to have a sub utopia be but that will part me another $6000.

not trying to make any conclusions but just hope to help anyone reading this. bring a few violin CD when you audition c1 to test the tweeter, and bring a few normal recorded cd to test the bass of micro. the answer would be clear.