The Model 422 Differential Input/Output Audio Amplifier / Transformer.
Differential amplifiers are found in many circuits that utilize series negative feedback like op-amp followers, non-inverting amplifiers, etc., where one input is used for the input signal, the other for the feedback signal which is usually implemented by operational amplifiers.
Applications:
- Broadcast
- Conventions / Political Rallys
- Courtrooms / Trials
- Live Events / Concerts
- Government Meetings / Press Conferences
- Home use
- Interviews
- News
- PA
- Public Meetings
- Security Briefs
- Sports Events
- Stadiums
- Studio
- Theaters
- Business / Industrial