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Autosound 2000 Disc One

Low Frequency Test CD (Disc One)

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  • Autosound 2000 Disc One

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Our take on the Autosound 2000 Disc One

Autosound 2000 has created this series of test CDs for the professional and the serious hobbyist. Each disc is designed to test a specific performance parameter of your vehicle's audio system.

Disc One contains 99 tracks, many of which focus on bass. You get 20-20,000 Hz sweeps, low frequency bursts, sine waves, and other useful tracks.

Please call a Sales Advisor for a complete track listing. You save about $10 when you buy the 5-disc set.

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Product Research
What's in the box?

  • CD 1: Low Frequency Tests
  • How-to-use information

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At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team — they open the box, verify contents, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Disc 1: Low Frequency Tests

  • Track 1: 1 kHz tone at -20 DB (2:06)
    Helps you measure the reference loudness of a component.
  • Track 2: 1 kHz tone at -20 dB, fades to black (3:55)
    Tests the reproduction quality of a sound system when driven with extremely low level signals.
  • Track 3: Polarity Pulses (3 positive - 1 negative) (2:00)
    To measure relative and absolute polarity.
  • Track 4: 20-20,000 Hz slow sweep (1:10)
    To take response measurements and to check for resonant frequencies.
  • Track 5: 20-20,000 Hz fast sweep (:19)
  • Track 6: Sequential tones 20-20,000 Hz, twice (1:36)
    For use with test instruments that measure sequential tones.
  • Track 7: Composite tones (2:04)
    Used for measurements with swept spectrum analyzers and to determine the overload threshold of a system.
  • Track 8: 50 Hz square wave with sweep to 20 Hz (2:00)
    Used for setting up low-frequency servo systems.
  • Track 9: Low-frequency bursts (1:27)
    Used to evaluate the transient behavior of a subwoofer system.
  • Tracks 10-98: Sine waves corresponding to track numbers (:30 each)
    The numerical track indicator of the CD player matches with the frequency of the sine wave that is recorded on that track, eg., track 10 = 10Hz.
  • Track 99: 1 kHz at digital zero (2:36)
    Used to test the output headroom of a CD player.
 
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Autosound 2000 Disc One Reviews

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5 out of 5

Elegant in its simplicity

Written By J Ro, California, MD on Tuesday, October 05, 2010
 
Very basic tones, nothing fancy, but expertly produced and recorded. This is
one installation tool i couldn't part with. Tracks 15-99 are sine waves with
the track number corresponding to frequency. Helpful for tracking down rattles,
evaluating frequency response, optimizing subwoofer placement, setting gain,
setting crossovers, scaring the dog... does all this and more!
24 out of 27 people found this helpful
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