Quote:
Originally Posted by penngray 
Maybe John can post why anyone would buy the upgrade and what its purpose is.
From all my reading on the topic, the Appollo upgrade are for those pushing this driver to its Max SPL limits. Normal home operation would have zero benefits from the Apollo upgrade.
FWIW, I had TD12S apollo upgrades and standard TD12S. There was zero difference between them for any of my applications.
Ricci spending $$ on the upgrade because its a live application where higher SPL is required.

Maybe John can post why anyone would buy the upgrade and what its purpose is.
From all my reading on the topic, the Appollo upgrade are for those pushing this driver to its Max SPL limits. Normal home operation would have zero benefits from the Apollo upgrade.
FWIW, I had TD12S apollo upgrades and standard TD12S. There was zero difference between them for any of my applications.
Ricci spending $$ on the upgrade because its a live application where higher SPL is required.
Well, speaking for myself, for the 10-20$ I misunderstood it to be, I figured it was a no-brainer. For 70$ I will not be going that route.




























Was going to get (3) TD18's to put under BMS 4590's.


Just to have enough time to finish off bigger portions of the project.
I want gobs and gobs of effortless, clean output for the entire digital audio bandwidth.

