Audio Segment

Aiwa ST-R22

The Aiwa ST-R22 is a compact FM/AM stereo tuner from Aiwa's iconic "22 Series" of micro hi-fi components. It delivers high-fidelity audio in a small package, blending precise digital tuning with traditional analog-style controls and a sleek metal casing.

1. Aiwa ST-R22 - Front View1. Front View
2. Aiwa ST-R22 - Top View2. Top View
3. Aiwa ST-R22 - Back View3. Back View
4. Aiwa ST-R22 - Inside View4. Inside View
5. Aiwa ST-R22 - Inside View5. Inside View
6. Aiwa ST-R22 - Inside View6. Inside View
7. Aiwa ST-R22 - Inside View7. Inside View
8. Aiwa ST-R22 - Inside View8. Inside View
9. Aiwa ST-R22 - Inside View9. Inside View
10. Aiwa ST-R22 - Panel Interior10. Panel Interior
11. Aiwa ST-R22 - Panel Interior11. Panel Interior

General Specifications

Antenna input: 75Ω & 300Ω
Frequency range: 87.3MHz-108.5MHz
S/N sensitivity (50dB): 13±2dB
S/N ratio: >65dB
Distortion: <0.4%
Frequency response (40Hz-15KHz): +0.5,-1.5dB
Stereo separation (1KHz): >42dB
Muting sensitivity: 20±6dB

Dimensions (WHD): 210×71×173.5mm
Weight: 2.0kg
Produced: 1979-1982
Initial price: 120USD

FM Tuner

Measurements of the tuner section were performed using an FM signal generator, with its output fed directly into the antenna input. AM measurements were not conducted.

12. Aiwa ST-R22 - FR Mono - Left Chanel12. FR Mono - Left Chanel
13. Aiwa ST-R22 - FR Stereo - Left Chanel13. FR Stereo - Left Chanel
14. Aiwa ST-R22 - THD Mono - Left Chanel14. THD Mono - Left Chanel
15. Aiwa ST-R22 - THD Stereo - Left Chanel15. THD Stereo - Left Chanel
16. Aiwa ST-R22 - THD vs Frequency Mono - Left Chanel16. THD vs Frequency Mono - Left Chanel