The AAF5 can be widely applied to external audio processing of all types of receiving equipment such as radio transceiver, receiver or broadcast radio to effectively reduce background noise by more than 10 dB, improve the signal-to-noise ratio by 20 dB, and increase the overall all signal readability on the RS and RST scales.


This filter differs from others you may have used in that it employs only analog circuits, resulting in significantly better audio quality than digital filters.

1. Analog filter frequency range:

a. Lo Cut adjustment range: 50Hz-500Hz

b. Hi Cut adjustment range: 500Hz-10000Hz

2. Headphone driving power: 150mW@Max

3. Headphone output impedance: 8-200Ω

4. Input impedance range: Low impedance of 8Ω, high impedance of 10kΩ

5. Speaker output power: >5W (8Ω, THD <0.1%)

6. Speaker output impedance: 4-8Ω

7. Operating voltage: 13.8 VDC +/-15%, 1 amp

8. Size: 6.0 x 3.5 x 1.5 inches (150 x 90 x 40 mm)

9. Weight: 1.5 pounds (680 grams)