2. amps-preamps
  3. 127274-86341

Soft Start Circuits for Amplifiers

What are the pros and cons of soft start circuits for tube and solid state amplifiers? My VAC amplifiers do not have soft start circuits and are 200 WPC.  I do notice my lights dimming due to voltage drop at power up and would imagine it's inrush current is hard on the KT 88s and other electronics?  Your thoughts would be appreciated!

normie57

Showing 1 response by erik_squires

erik_squires
16,756 posts
 
Soft start saves the power filter capacitors and the power transformer most of all, followed by the active devices (tubes and transistors). It may also prevent your panel breakers from tripping.

DIYAudio sells some boards to make your own.

No cons.

Erik
More to discover