B&K 4420M - Manual (Page 5)

Page 3
The Reference 4420M is a compact, very efficient, single channel power amplifier. It is
designed to be used in all types of audio or audio/video systems.
The Reference 4420M utilizes high quality electronic circuitry to achieve an environment
wherein a detailed, transparent, and highly musical sound can be realized. The high
quality parts complement include state-of-the-art solid state devices, 1% metal film
resistors, computer grade electrolytic power supply capacitors, and a high capacity
toroidal transformer.
The Reference 4420M operates class A predriver and AB high current MOSFET power
output stages. It is capable of reproducing the most demanding audio signals at rated
power levels.
- Efficient high current transformer for improved dynamics.
- More accurate and three dimensional reproduction of source
material.
- Improves low level detail for smoother, more musical sound.
- For efficient and linear power delivery.
- Provides short term protection from accidental shorting of output
devices and protection from thermal overload.
- Improve connections for better sound and minimized signal
loss and degradation.
- Low noise resistors for better sound and a greater degree
of repeatability.
- Ability to reproduce demanding recordings.
- Large capacity computer grade electrolytic capacitors
for extended low frequency control and improved dynamics.