Superfire EP7 Sonic Defenders Ultra - User Manual

HEARING PROTECTION
HEARING PROTECTION
EP7 Sonic Defenders
®
Ultra
Two Levels of Protection Against Two Types of Noise
Filtered EP7 Sonic Defenders
Ultra provide two levels of protection—
with their attached filter caps in or out—against two types of noise:
continuous noise (example: loud roar of an engine) and impulse noise
(example: gunshot). With the filter caps out of the noise-reducing
filters, loud potentially dangerous sounds (above 85dB) are lowered
while safe-level ambient sounds and conversations are allowed to
pass through and be heard. With the filter caps inserted, additional
hearing protection is afforded and ambient sounds and conversations
are blocked.
FOR PROTECTION WITH THE ABILITY TO HEAR AMBIENT SOUNDS,
leave filter caps out, or pry out with your fingernail if already inserted.
FOR MAXIMUM
PROTECTION OR SITUATIONS WHERE YOU DON’T WANT TO HEAR AMBIENT
SOUNDS, insert filter caps into filter holes and push in until snug.
NOISE ATTENUATION DATA
WARNING: Improper fit of this device will reduce its effectiveness in attenuating noise.
Follow instructions for proper fit. Failure to follow instructions could result in hearing loss
and/or injury. EP7 Sonic Defenders
Ultra fit most people; however, no hearing protection
fits everyone. If proper fit cannot be achieved following instructions, discontinue use. Do
not use in environments with extreme air pressure or where abrupt pressure changes
occur. Foam-tipped EP7s should NOT be worn for swimming. For swimming use, we
recommend polymer flange-stemmed Sonic Defenders models.
EP7 Sonic Defenders Ultra - FILTER CAPS OUT
NOISE REDUCTION RATING
(NRR)
EP7 Sonic Defenders Ultra - FILTER CAPS IN
14
NRR
Test Frequencies (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
125
9.5
4.2
250
10.6
3.1
500
18.7
3.5
1000
26.9
3.6
2000
34.6
4.1
3150
34.3
2.6
4000
30.8
4.4
8000
41.1
2.9
6300
36.1
4.3
28
NRR
Test Frequencies (Hz)
Mean Attenuation (dB)
Standard Deviation (dB)
125
31.3
3.7
250
29.8
2.9
500
35.9
3.6
1000
36.3
3.6
2000
38.1
2.8
3150
40.1
4.2
4000
34.8
3.5
8000
41.3
4.4
6300
38.5
4.8
EP7 Sonic Defenders
®
Ultra
14
(when used as directed)
EP7 Sonic Defenders
®
Ultra
28
(when used as directed)
WITH FILTER CAPS OUT
WITH FILTER CAPS IN
Average Peak Impulse Level dB Reduction
Average Peak Impulse Level dB Reduction
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
24.5
29.3
32.1
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
41.8
45.3
44.9
NOISE REDUCTION (dB)
EP7 Impulse Noise Reduction—Filter Caps Out
ANSI S12.42-2010
45
40
35
30
25
20
15
10
5
0
132 150 168
IMPULSE NOISE LEVEL (dB)
Average Peak Impulse Level dB Reduction
Average Peak Impulse Level dB Reduction
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
24.5
29.3
32.1
132 dB Overall Average PIL
150 dB Overall Average PIL
168 dB Overall Average PIL
41.8
45.3
44.9
ANSI S12.42-2010
NOISE REDUCTION (dB)
EP7 Impulse Noise Reduction—Filter Caps In
50
45
40
35
30
25
20
15
10
5
0
132 150 168
IMPULSE NOISE LEVEL (dB)

Summary

Noise Attenuation Data

EP7 Sonic Defenders Ultra - Filter Caps Out

Presents noise reduction data and impulse noise reduction graph for EP7 with filter caps removed.

EP7 Sonic Defenders Ultra - Filter Caps In

Presents noise reduction data and impulse noise reduction graph for EP7 with filter caps inserted.

Fitting and Testing

Replacing Comply Canal Tips

Instructions for replacing foam tips on EP7 earpieces for optimal performance and longevity.

Cleaning, Storage & Product Life

Guidelines for cleaning, storing, and expected lifespan of the EP7 Sonic Defenders.

Radio Communication System Use

How to use EP7 earplugs with compatible radio communication systems by removing filters.

Connecting;Disconnecting Lanyard

SureFire No-Hassle Promise

Overview

1. Function Description
2. Important Technical Specifications
3. EP7 Sonic Defenders Ultra - Filter Caps Out
4. EP7 Sonic Defenders Ultra - Filter Caps In
5. Usage Features
6. Fitting Instructions
7. Maintenance Features
8. Warnings and Important Notes

The SureFire EP7 Sonic Defenders Ultra are hearing protection devices designed to offer two levels of protection against continuous and impulse noise. They feature noise-reducing filters with attached filter caps, allowing users to choose between ambient sound awareness and maximum protection.

Function Description:

With the filter caps out, the EP7 Sonic Defenders Ultra reduce loud, potentially dangerous sounds (above 85 dB) while allowing safe-level ambient sounds and conversations to be heard. This mode is ideal for situations where situational awareness is important. When the filter caps are inserted, additional hearing protection is provided, and ambient sounds and conversations are blocked, offering maximum protection or for situations where the user does not want to hear ambient sounds. The device is designed to fit most people, but proper fit is crucial for effectiveness.

Important Technical Specifications:

EP7 Sonic Defenders Ultra - Filter Caps Out:

• Noise Reduction Rating (NRR): 14 dB
• Attenuation Data (ANSI STD S3.19-1974):
  • Test Frequencies (Hz): 125, 250, 500, 1000, 2000, 3150, 4000, 6300, 8000
  • Mean Attenuation (dB): 9.5, 10.6, 18.7, 26.9, 34.6, 34.3, 30.8, 36.1, 41.1
  • Standard Deviation (dB): 4.2, 3.1, 3.5, 3.6, 4.1, 2.6, 4.4, 4.3, 2.9
• Impulse Noise Reduction (ANSI S12.42-2010):
  • 132 dB Overall Average Peak Impulse Level (PIL): 24.5 dB Reduction
  • 150 dB Overall Average PIL: 29.3 dB Reduction
  • 168 dB Overall Average PIL: 32.1 dB Reduction

EP7 Sonic Defenders Ultra - Filter Caps In:

• Noise Reduction Rating (NRR): 28 dB
• Attenuation Data (ANSI STD S3.19-1974):
  • Test Frequencies (Hz): 125, 250, 500, 1000, 2000, 3150, 4000, 6300, 8000
  • Mean Attenuation (dB): 31.3, 29.8, 35.9, 36.3, 38.1, 40.1, 34.8, 38.5, 41.3
  • Standard Deviation (dB): 3.7, 2.9, 3.6, 3.6, 2.8, 4.2, 3.5, 4.8, 4.4
• Impulse Noise Reduction (ANSI S12.42-2010):
  • 132 dB Overall Average PIL: 41.8 dB Reduction
  • 150 dB Overall Average PIL: 45.3 dB Reduction
  • 168 dB Overall Average PIL: 44.9 dB Reduction

Usage Features:

• Two Levels of Protection: Users can choose between leaving filter caps out for ambient sound awareness or inserting them for maximum protection.
• Impulse Noise Protection: Specifically designed to reduce the impact of sudden, loud noises like gunshots.
• Continuous Noise Protection: Effective in attenuating constant loud sounds, such as engine roar.
• Radio Communication System Use: An EP7 earplug can be converted into an earpiece for compatible radio communication systems by removing the noise-reducing filter and inserting the system's elbow connector. Note that this configuration provides a reduced level of hearing protection.
• Lanyard Connectivity: The device includes a lanyard for secure attachment, preventing loss. Lanyard ends snap into small holes located beneath the noise-reducing filters.

Fitting Instructions:

1. Roll the Comply™ Canal Tip of the color-coded (red for right) EP7 into a thin, round cylinder, ensuring not to unscrew the tip from the stem.
2. With the EarLock® retention ring oriented slightly backward, rotate the earplug forward while inserting the foam tip deep into the right ear canal. Fit the retention ring to the natural contour of the concha bowl to lock the earplug in place. Hold for 15-30 seconds for the foam tip to fully expand.
3. Check the earplug's seal by placing a fingertip over the outer hole of the filter and removing. A slight suction indicates a proper seal.
4. Repeat the process with the white-filtered earpiece for the left ear.
5. Test by clapping with filter caps out. If no noticeable decrease in volume, reinsert and retest.
6. To block lower-level noise in quiet environments, insert the attached filter caps into the filter holes and push until snug.

Maintenance Features:

• Comply™ Canal Tip Replacement: For optimal performance, the Comply™ Canal Tips should be replaced every 2-4 weeks or when soiled. Replacement involves unscrewing old tips, cleaning the earplug stems, and screwing on new tips until fully seated (do not overtighten). Both tips should always be replaced at the same time.
• Cleaning: Earpieces should be cleaned with mild soap and water and allowed to air dry. Foam tips can be cleaned by wiping with a clean cloth and rinsing with water, then air dry.
• Storage: Store in a cool, dry place in the included container. Avoid direct sunlight and extreme storage temperatures, which can cause filters to separate from stems. If separation occurs, filters must be reinserted.
• Product Life: EP7 Sonic Defenders Ultra typically last up to 6+ months, depending on usage and care. Replace earplugs when they become stiff and hardened.

Warnings and Important Notes:

• Improper fit will reduce effectiveness. Follow instructions carefully to prevent hearing loss and/or injury.
• Not all hearing protection fits everyone. Discontinue use if proper fit cannot be achieved.
• Do not use in environments with extreme air pressure or abrupt pressure changes.
• Foam-tipped EP7s should NOT be worn for swimming. Polymer flange-stemmed Sonic Defenders models are recommended for swimming.
• Inserting filter caps negates the noise-reducing filters' ability to let ambient sounds and conversations pass safely through.
• SureFire Hearing Protection products are warranted for 90 days from the date of purchase. The warranty does not cover consumables, normal wear-and-tear, or damage from abuse, alterations, unauthorized repairs, or use contrary to user manuals.

Superfire EP7 Sonic Defenders Ultra Specifications

General

Brand	Superfire
Model	EP7 Sonic Defenders Ultra
Category	Protection Device
Language	English