B&K 2220 User Manual download pdf (Page 5)

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The Reference 2220's purpose and function

The Reference 2220 is a compact, very efficient, two channel power amplifier. It is

designed to be used in all types of audio or audio/video systems.

Design and construction

The Reference 2220 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 2220 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.

Features

Toroidal Transformers - Efficient high current transformer for improved dynamics.

Discrete Circuitry - More accurate and three dimensional reproduction of source

material.

Class A Predriver - Improves low level detail for smoother, more musical sound.

AB MOSFET Output Stage - For efficient and linear power delivery.

Limited Protection - Provides short term protection from accidental shorting of output

devices and protection from thermal overload.

Gold Plated Connectors - Improve connections for better sound and minimized signal

loss and degradation.

1% Metal Film Resistors - Low noise resistors for better sound and a greater degree of

repeatability.

High Current - Ability to reproduce demanding recordings.

Computer Grade Capacitors - Large capacity computer grade electrolytic capacitors

for extended low frequency control and improved dynamics.

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B&K 2220 User Manual Page 5