View Single Post
  #16  
Old 05-22-2021, 12:18 PM
Charles Charles is offline
Senior Member

 
Join Date: Jul 2011
Posts: 3,230
Default

Quote:
Originally Posted by Msegal View Post
I was under the impression that the output transformer protected the output device (SS or tube) by providing a constant load regardless of the output tap used.

Mike S.
I think load is related to power or current. When the current becomes excessive for the transistors, Mac has a Sentry Monitor circuit. In a short circuit the impedance approaches zero requiring the amp to produce tremendous current. A speaker like a Thiel CS5i requires an amp like a Dag that is built off a 2 ohm tap so that it can efficiently (without stress) supply the current and watts. In my opinion, Mac amps should not be used with speakers with a nominal impedance below 3 ohms. Mac amps have tremendous advantages in that when the impedance drops below the nominal impedance they can sound very dynamic and have more bass. What creating a deliberate impedance mismatch does is carry a good thing to an extreme.

Best

Charles
Reply With Quote