*** Looking for PINK NOISE?? ***
New study says pink noise can help you sleep better and improve brain function.(As seen on NBC Evening News 5/29/17)
Get our exclusive TEST TONES CD. Play the Pink Noise track (cut #2) with your CD player set to "repeat". That all there is to it!

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Are you
SERIOUS about your stereo?

Get the MOST out of your Audio System

Test it the way the pros do: with pure audio tones

If you're SERIOUS about audio

Put Jackstuff.com's Audio Test Tone CD into any standard CD player to:
  • evaluate speaker response

  • set equalizer

  • determine harmonics

  • locate rattles & buzzes

  • set accurate & consistent recording levels

  • evaluate room acoustics

  • check for drop-outs

  • benchmark

  • ensure quality performance

The Audio Test Tone CD is a must for high-end automotive sound systems:
  • Tweeters and super-tweeters are highly directional. Are they aimed properly?

  • Is the subwoofer causing nearby parts to vibrate & buzz at certain frequencies?

  • Do the speakers perform according to specs?

  • Is the crossover passing the desired frequencies?

  • GREAT for tuning subwoofer boxes!

Make sure you're getting the audio you paid for.

Thirty-two frequencies from 5 Hz to 20,000 Hz, plus white noise, pink noise & brown noise,
created by a precision digital signal generator.

Track #

Freq.

Track #

Freq.

Track #

Freq.

1

WhiteNoise

14

  90 Hz

26

4 kHz

2

PinkNoise

15

  100 Hz  

27

6 kHz

3

BrownNoise

16

125 Hz

28

8 kHz

4

5Hz

17

150 Hz

29

10 kHz

5

10 Hz

18

175 Hz

30

12 kHz

6

15 Hz

19

200 Hz

31

14 kHz

7

20 Hz

20

300 Hz

32

16 kHz

8

30 Hz

21

400 Hz

33

18 kHz

9

40 Hz

22

500 Hz

34

 20 kHz  

10

50 Hz

23

750 Hz

35

Fade

11

60 Hz

24

1 kHz

36

BigWhoop

12

70 Hz

25

2 kHz

37

A440

13

80 Hz

Length of each track: 60 seconds.
(Put your CD player in repeat mode for continuous tone.)

Note: Lowest & highest frequencies are not audible to the human ear. (Ask your dog for assistance.)

- Get the MOST out of your Audio System -

only $995 ($2.00 shipping)

Test it like a pro, with Jackstuff.com's
Audio Test Tone CD