General Features
- The Ultimate Amplifier Level Setting Disc, for Critical Evaluation of Audio Components
- The ultimate test disc for determining the audible level of distortion in an audio system
- Uses specialized tracks to set up your system for maximum sound and minimum system hiss
- No special equipment is needed
- The tracks will indicate the specific amount of gain overlap (clipping), average distortion, and the relative loudness present in your system
- Other tracks on cd#104 will permit optimal component adjustments of the signal level to maintain optimal system performance
- 1-year SonicElectronix.com warranty
Specifications:
Tracks 2-6 demonstrate the subjective increase in loudness that can be obtained by providing a specified amount of gain overlapping at the amplifier of an audio system.
- Track 2: Demonstrates 0 dB of gain overlap
- Track 3: Demonstrates 5 dB of gain overlap
- Track 4: Demonstrates 10 dB of gain overlap
- Track 5: Demonstrates 15 dB of gain overlap
- Track 6: Demonstrates 20 dB of gain overlap
Tracks 7-12 are used for setting the max level (clipping threshold) of electronic components
- Track 7: 50 Hz @ 0dBFS useful for adjusting subwoofer crossover)
- Track 8: 100Hz @ 0dBFS useful for setting midbass of an electronic crossover
- Track 9: 400Hz @ 0dBFS useful for x-over setting at this frequency
- Track 10: 1kHz @ 0dBFS used to set x-over midrange output
- Track 11: 4kHz @ 0dBFS useful to set tweeter output of an electronic crossover
- Track 12: 8kHz @ 0dBFS useful to set tweeter output of an electronic crossover
Tracks 13-18 are used to obtain 5 dB of gain overlap
- Track 13: 40 Hz @ -5 dBFS
- Track 14: 100 Hz @ -5 dBFS
- Track 15: 400 Hz @ -5 dBFS
- Track 16: 1 kHz @ -5 dBFS
- Track 17: 4 kHz @ -5 dBFS
- Track 18: 8 kHz @ -5 dBFS
Tracks 19-24 are used to obtain 10 dB of gain overlap
- Track 19: 40 Hz @ -10 dBFS
- Track 20: 100 Hz @ -10 dBFS
- Track 21: 400 Hz @ -10 dBFS
- Track 22: 1 kHz @ -10 dBFS
- Track 23: 4 kHz @ -10 dBFS
- Track 24: 8 kHz @ -10 dBFS
Tracks 25-30 are used to obtain 15 dB of gain overlap
- Track 25: 40 Hz @ -15 dBFS
- Track 26: 100 Hz @ -15 dBFS
- Track 27: 400 Hz @ -15 dBFS
- Track 28: 1 kHz @ -15 dBFS
- Track 29: 4 kHz @ -15 dBFS
- Track 30: 8 kHz @ -15 dBFS
Tracks 31-35 are the same as tracks 2-6. However, the levels of these tracks have been adjusted to compensate for the loudness increase
- Track 31: Reference track with 0 dB gain overlap
- Track 32: 5 dB of gain overlap w/recording level lowered 4.9dB
- Track 33: 10 dB of gain overlap w/recording level lowered 9.4 dB
- Track 34: 15 dB of gain overlap w/recording level lowered 13.3 dB
- Track 35: 20 dB of gain overlap w/recording level lowered 16.2 dB
