new GAN amplifier

because the speakers also have to be least colored most dynamic you can get, unfortunately that usually means they’re hard to drive.

This statement is false. Less efficient speakers also tend to be less dynamic due to voice coil heating. A secondary reason is the harder any amplifier is made to work to drive a speaker, the more distortion it makes- which is audible as reduced detail and increased harshness.

Pot, meet kettle ....

georgehifi6,196 posts11-18-2019 4:17pm

Now lets get back onto the OP’s topic.

Less efficient speakers also tend to be less dynamic due to voice coil heating.

This statement is more false, as the drivers are built far more exactly to meet their operational parameters

A secondary reason is the harder any amplifier is made to work to drive a speaker, the more distortion it makes

This statement is even more false, as the purpose built amps that can double their wattage’s down to 2ohm and that can drive them and have far less distortions than your OTL's, you are just in product protection mode because OTL’s can only drive certain speakers without distorting and those speakers usually have far more coloration/distortions as well. 

atmasphere7,771 posts09-18-2019 6:50amOur OTLs do a nice job on the Alexia

This one statement among others, shows just that your not of this planet anymore.
To say your OTL’s can drive the Wilson Alexia!!!!. is just so ?? words fail me.
One of the hardest speakers ever to drive correctly, yet one of the most accurate that I and others have ever heard, when driven with amps with big current that can do them justice.

Not sure what all this has to do with a new GAN amplifier, but the Wilson Alexia, at least the current model does not seem that hard to drive. Even the older ones only drop to 2ohms.


Can you put some more details into your hypothesis that being able to double power into 2 ohms is a guarantee of "quality". I can see reasons why it could be, but not a guarantee, just as the way I can see why power limitations at 2 ohm are not a guarantee of a lack of quality.

Back to Class-D, there is of course no inherent reason why a Class-D can't work at 2 ohms, or less. If you want best operation with low impedance loads, you would want to optimize for that, but then that is true for a linear amplifier as well.



https://www.stereophile.com/content/wilson-audio-specialties-alexia-series-2-loudspeaker-measurement...

https://www.stereophile.com/content/wilson-audio-specialties-alexia-loudspeaker-measurements