The Knight KN4550 is a 1950s/1960s era cardioid dynamic microphone marketed by Allied Radio Corporation from Chicago. It features a heavy all-metal, satin-chrome, "pill-shaped" design with three ports per side. Often compared to the Electro-Voice 664, it offers a warm, unidirectional, "rockabilly" tone. The microphone is known for its robust, classic look and is often sought after for its "old school" sound. This microphone is untested, and in unknown working condition. It is sold as seen.Key Details
- Type: Cardioid dynamic
- Era: 1950s–1960s (likely produced by Electro-Voice for Allied Radio)
- Frequency Response: 45 Hz to 14 kHz
- Impedance: Switchable High/Low
- Features: On/off switch, 4-pin connector, built-in stand mount (5/8”-27 thread)
- Common Use: Stage performance, HAM radio, public address
This item is sold As-Described
This item is sold As-Described and cannot be returned unless it arrives in a condition different from how it was described or photographed. Items must be returned in original, as-shipped condition with all original packaging.Learn More.
| Listed | 3 months ago |
|---|---|
| Condition | Fair (Used) Fair condition gear should function but will show noticeable cosmetic damage or other issues.Learn more |
| Brand |
|
| Model |
|
| Categories | |
| Year |
|
Product safety information may be available here.








