ROCKSTARS™ EARPLUGS
FILTERED AND SOLID EARPLUGS
    
custom earplugs... so you can hear
and enjoy music today and tomorrow!!
Rock Stars II so that you can hear and enjoy music today and tomorrow. Rock Stars
II are custom-made sound suppressers that can help protect the hearing of musicians,
support staff and concert attendees when they have sustained exposure to very loud music.
Rock Stars II can be fit with filtered Continuous Flow Adapters (CFA) which
enable the user to match frequency-specific attenuation levels to the spectral
characteristics of the music. Music is sufficiently attenuated to help prevent hearing
loss. While music heard through Rock Stars II is suppressed, it will retain its clarity,
depth, and brilliance. Background sustained exposure to noise levels above 80 dB can cause
a hearing loss. The hearing of musicians, their support staff, orchestra conductors, band
leaders or teachers, and frequent rock concert attendees is at risk. Hearing protection
often does not become a concern until a person senses some loss in hearing acuity.

Rock music has been measured at sound levels as high as 100 to 140 dB.
This is a extremely high noise level. The sound levels of college school bands have been
measured at well over 100 dB. The challenge is not only to educate at risk populations to
the effects of excessive noise exposure, but to motivate them to use ear protection.
The prevention of hearing impairment is the primary goal of the hearing health
professional working with musicians or concert attendees. However, to ensure the use of
ear protection, the product must attenuate music without distorting or changing the sound
of the music.
Advantages of Custom Ear Plugs.
Rock Stars II are custom-made sound suppressers which provide users
with unparalleled comfort for short or extended periods of time.
Proper Insertion:

Rock Stars II custom ear plugs are easy to insert. Proper insertion is essential
to maximize attenuation. Field studies have revealed that plastic or foam plugs are often
inserted improperly and therefore provide less than published mean attenuation levels. All
ear plugs are marked by an inconspicuous dot to indicate left and right ear.
Consistent Performance:
Because of their molded design custom ear plugs provide consistent performance over
time. Each time a custom plus is inserted the same mean attenuation is attainable. Foam
plugs rapidly lose their attenuation strength as they are exposed to ear wax, dirt, and
the natural oil on hands.
Superior Value:
Rock Stars II have an expected life span of three (3) years. Used just ten (10)
times a year their cost per use is less than the foam plugs bought in pharmacies or music
stores.
Advantages of Rock Stars II
Performance:
Rock Stars II have a Noise Reduction Rating (NRR) of 28 based on testing by an
independent laboratory. This is the highest custom ear protection rating on today's
market.
Custom Filtering System:

The unique design of Rock Stars II is created by the use of filtered Continuous
Flow Adapters (CFA). This filtering system enables the client and their dispenser to
control and shape the attenuation of music so that the loudness is sufficiently limited
and the music sounds clear, undistorted, and full-bodied. This is important as the most
common complaint voiced by users of alternative plugs is the loss of clarity and
distortion of the music. The mean (average) level of attenuation can be as low as 10 dB or
as high as 30 dB.
The sound quality heard through sound suppressers should be softer in terms of
intensity. The music should sound clear and full-bodied - not distorted by a treble or
bass emphasis. Rock Stars II are designed to control this situation.
Easy Replacement:
Rock Stars II can easily be replaced because of the unique manufacturing process
used by Pacific Coast Laboratories whereby a cast is maintained for a period of three (3)
years.
Rock Stars II can help attenuate music when it reaches loud and potentially harmful
levels without distorting or changing the sound of the music.
Methods & Strategies
Baseline Audiometric Data:
It is recommended that the hearing acuity of the prospective Rock Stars II user
be tested. It is important to establish if you have normal hearing or a pre-existing
hearing loss.
What levels of attenuation can you expect from Rock Star I & Rock Stars II?
It is important to know the average (mean) level of sound attenuation which will occur
when Rock Stars II are worn at concerts by musicians and concert attendees.
Attenuation Data for Rock
Stars I and II |
Frequency (Hz) |
125 |
250 |
500 |
1000 |
2000 |
3150 |
4000 |
6300 |
8000 |
| Rock Stars I N.R.R. 28* |
Mean Attenuation |
33.2 |
34.5 |
36.6 |
34.6 |
36.5 |
42.4 |
44.1 |
43.9 |
44.9 |
Rock Stars II
w/filtered CFA adapters |
Mean Attenuation |
|
Solid |
28.0 |
31.0 |
30.3 |
27.7 |
35.7 |
32.3 |
39.7 |
43.7 |
44.0 |
|
680 |
3.3 |
4.3 |
7.0 |
14.7 |
28.0 |
24.3 |
25.0 |
31.0 |
24.3 |
|
1500 |
7.0 |
8.3 |
13.3 |
17.7 |
27.3 |
26.0 |
27.0 |
31.3 |
30.0 |
|
2200 |
8.7 |
12.3 |
17.0 |
19.0 |
29.0 |
28.0 |
29.0 |
33.3 |
32.0 |
|
3300 |
14.3 |
16.0 |
19.3 |
22.7 |
29.7 |
28.7 |
31.7 |
35.0 |
34.7 |
|
4700 |
10.7 |
17.7 |
21.3 |
25.0 |
30.3 |
29.0 |
32.7 |
34.0 |
35.0 |
|
*
Noise Reduction Rating (N.R.R.), ANSI S3.12 (1974). All data obtained from
independent testing lab.
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The attenuation achieved at specific frequencies is shown for various Rock Stars
I and Rock Stars II configurations (refer to the above data). The filter used
is noted on the left of the chart. The greatest differences in attenuation occur below
1000Hz. Spectral analysis of heavy metal, rock, rhythm and blues, jazz, big band, country
western, and classical orchestral music indicate that some of the greatest differences in
music's spectral characteristics occur below 1000 Hz.
An independent laboratory has tested Rock Stars I and Rock Stars II. The level
of attenuation was measured at nine frequencies. The test data for the ear plugs is shown
in the chart above.
The most suppression or attenuation occurs with Rock Stars I, a solid ear plug. The
least suppression or attenuation occurs when a 680 filtered CFA is used with the Rock
Stars II. When filters are changed the attenuation at specific frequencies is
altered. To measure the attenuation Rock Stars II are providing a specific client,
use a real ear measurement system and follow manufacture's instructions for attenuation
measurements.
To measure how Rock Stars II attenuate music, you need a continuous real time
system with a spectrum test mode that can process external signals and test all
frequencies simultaneously (i.e. Frye Electronics FONIX 6500).
Rock Stars I
Solid custom ear plugs are designed to provide maximum attenuation. These ear plugs
have an NRR of 28. Also available with an angled vent insulated with lambs wool.
Rock Stars II
Custom ear plugs used with filtered CFA adapters that alter the level of attenuation in
specific frequency bandwidths.
The Rock Stars I & Rock Stars II Program
Direct Mail to you.
Standard Material - Poly-Sheer II
Clearly Indicate - Rock Stars I or
Rock Stars II
Recommendation - Each person have a
personal kit containing a pair of each of the filters.
Styles available - Full shell, Half (˝)
shell, canal only. (Full shell unless otherwise specified)
Carrying Case - Each set of plugs include
a carrying case.
Designer Colors (Optional)
MOSAICS: a new designer line of
earmold colors has been created by Pacific Coast Laboratories through their unique
processing system, earplugs are filled with an array of color chips from their base line
of (25) colors.
STARBURST: are almost as
limitless in colors as your imagination. Begin with a base of clear or white Poly-Sheer
and choose up to(4) colors from the (25) base colors to make up your personalized custom
earplug.
MADI GRAS: Mardi Gras Mosiacs
have a bright, bold color palette of black, red, blue, green, florescent hot pink and
purple.
CONFETTI: Confetti Mosaics have
a dazzling fun-filled spectrum of teal and florescent colors including
magenta, lime, green, orange and yellow.
Mosiacs are available in all earplugs styles.
A color key page is provided in this site to show you the true colors, so that you may
visually choose your colors.
(Colors shades may vary due to the density and mass of the ear plug)
Dispenser Kits - A full-sized kit
containing six (6) of each of the filters.
Filter
ID Color
680
White
1500
Green
2200
Red
3300
Orange
4700
Yellow
Small Hole
No Filter
Embedded Earring Post Holders Available
Embedded Initials (two )(2) per ear plug) -
Initials can be embedded in Rock Stars II to identify the owner of lost or misplaced
ear plugs.
Identification Card - Each set of Rock
Stars II includes a laminated identification card for use in obtaining ear plug
replacements without the need for a new impression. (Impressions are kept for three (3)
years. The card includes the name of the dispensing office and also provides care and
cleaning instructions.
Personal Adapter Kit - Rock Stars
II (must order separately) - CFA filters snap into the Rock Stars II custom drilled
bore to modify the level of attenuation achieved in specific frequency bandwidths. This
kit contains two (2) each of the five (5) filters and two (2) adapters with small hole, no
filter.
Solid Adapters - Standard with each set
of Rock Stars II is a solid adapter providing the highest attenuation available for these
custom ear plugs.
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