Ortofon Stereo Test Record 測試片

測試片中包含特殊測試音來驗證唱盤、唱臂與唱頭的實力。

15首曲目

1. Frequency Sweep Left Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)

2. Frequency Sweep Right Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)

3. Frequency Sweep Left Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)

4. Frequency Sweep Right Channel 800 Hz – 50 kHz. Log. 28 sec. Linear cut* (800 – 20000 Hz ±1,5 dB)

5. Reference tone 1000 Hz 5 cm/sec rms Left

6. Reference tone 1000 Hz 5 cm/sec rms Right

7. Reference tone 1000 Hz 5 cm/sec rms Left

8. Reference tone 1000 Hz 5 cm/sec rms Right

9. Tracking ability, lateral 50 μm peak

10. Tracking ability, lateral 60 μm peak

11. Tracking ability, lateral 70 μm peak

12. Tracking ability, lateral 80 μm peak

13. Tracking ability, lateral 90 μm peak

14. Tracking ability, lateral 100 μm peak

15. Square Wave Form 2.7 msec duty cycle 3:7