eVent - High-End Valve Amplifiers - Masterclass

Masterclass     >>>REGISTER NOW<<<

Masterclass High-End Valve Amplifiers

Specifically for audio designers, audiophiles, DIY enthusiasts etc.
Presenter: Menno van der Veen, MSc., leading designer of valve amplifiers and output transformers.

friday 24 July 2009 from 10.00 am to 3.30 pm

Elektor house | Alee 1 | 6141AV Limbricht | The netherlands 

In this Masterclass Menno van der Veen will examine the predictability and perceptibility of the specifications of valve amplifiers. This topic is partially described in his 'High-End Valve Amplifiers’, but is treated in more depth in this course.

Covered are models that allow the characteristics of valve amplifiers to be explored up to the limits of the audible domain from 20 Hz to 20 kHz. This then leads to the minimum stability requirements that the amplifier has to satisfy. The coupling between output valves and output transformer are also modelled. This gives new insight into a unique type of distortion: Dynamic Damping Factor Distortion (DDFD). Negative feedback is often used in amplifiers. What is the optimum and what are the audible consequences? The correct amplification of micro details is explained, based on new research, and new models about this are presented.

The course fees are £ 0.00
Including lunch

REGISTER NOW
Places are strictly limited.

Programme:

• Reception and registration (9.30)
• Preamplifiers
  equivalent schematics, limits in the frequency domain
• Power amplifiers
  modelling of class A to B, interaction of the specifications for OPTs and frequency range and damping factor
• Lunch (12.15-12.45)
• Negative feedback
  how negative feedback can be done right, remarkable experiments in "the project"
• Output transformer
  limits and possibilities for the output transformer
• Discussion and end (3.30)