SAFETY LISTENING GUIDANCE

WARNING: LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN CAUSE PERMANENT HEARING DAMAGE. USE AS LOW A VOLUME AS POSSIBLE.

Over exposure to excessive sound levels can damage your ears resulting in permanent noise-induced hearing loss (NIHL). Please use the following guidelines established by the Occupational Safety Health Administration (OSHA) on maximum time exposure to sound pressure levels before hearing damage occurs.

RISKS/ACTIONS

RISK OF WINDOWS BREAKING

140 dB PEAK EXPOSURE LIMIT

137dB PEAK UPPER EXPOSURE ACTION 135 dB PEAK LOWER EXPOSURE ACTION

(RISK OF PERMANENT HEARING DAMAGE - PEAK)

87dB EXPOSURE LIMIT 85 dB UPPER EXPOSURE ACTION 80 dB LOWER EXPOSURE ACTION

(RISK OF PERMANENT HEARING DAMAGE - CONTINUOUS)

LISTENING DURATION GUIDANCE

120dB

Avoid or take reduction precautions

115dB

15 minutes

110dB

30 minutes

105dB

1 hour

100dB

2 hours

95dB

4 hours

90dB

8 hours (level dependant)

SPL(dB)

190

180

170

160

150

140

130

120

110

100

90

80

70

60

50

40

30

20

10

0

RELATIVE LEVEL

THEORETICAL LIMIT IN AIR

SPACE SHUTTLE LAUNCH

CANON FIRING

DANGER

JET ENGINE

EMERGENCY SIREN

LOUD CONCERT ROCK/ELECTRONIC

137.5dB = PAIN THRESHOLD (AVERAGE)

CYMBAL STRIKES / HIGH HATS

FULL SYMPHONY ORCHESTRA

JACK HAMMER AT 1m

RISK

BUSY ROAD TRAFFIC

PERSONAL AUDIO SYSTEMS

HOME THEATRE / TV

 

NORMAL OFFICE

 

QUIET OFFICE

 

 

 

QUIET RESIDENTIAL

SAFE

RECORDING STUDIO

 

LEAVES RUSTLING

 

CALM BREATHING

 

AUDITORY THRESHOLD

 

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KRK KNS6400, KNS8400 user manual Safety Listening Guidance, Risks/Actions

KNS8400, KNS6400 specifications

The KRK KNS6400 and KNS8400 headphones represent a significant advancement in professional studio monitoring technology. Designed to provide accurate sound reproduction, both models are highly regarded by audio professionals and enthusiasts alike. Their primary purpose is to facilitate precise mixing and mastering, ensuring that every detail of the audio can be heard clearly.

The KRK KNS6400 features a closed-back design, which enhances sound isolation and minimizes ambient noise interference. This allows users to focus on their audio without being distracted by external sounds. The headphones are equipped with custom 40mm drivers that deliver a flat frequency response from 20Hz to 20kHz. This range ensures that both low and high frequencies are reproduced accurately, making them ideal for critical listening environments.

In addition to their sound quality, the KNS6400 headphones are designed for comfort during extended use. The plush ear cushions and adjustable headband provide a secure fit, catering to users who spend long hours in the studio. This ergonomic design helps reduce listener fatigue, allowing for longer mixing sessions without discomfort.

The KRK KNS8400 model builds on the foundation established by the KNS6400. It features a wider frequency response range, extending from 10Hz to 22kHz. This broader bandwidth allows the user to capture a more extensive range of audio dynamics, making it ideal for genres that demand intricate details, such as classical or jazz music. The KNS8400 also includes a unique dual-layer ear cup design, which enhances both comfort and sound isolation.

Both models utilize high-quality materials, ensuring durability and longevity. The foldable design of the KNS6400 and KNS8400 allows for easy transportation, making them suitable for mobile studios and on-the-go professionals. Additionally, the replaceable ear pads offer a cost-effective way to maintain the headphones over time.

In conclusion, the KRK KNS6400 and KNS8400 headphones stand out in the world of studio monitoring. With their remarkable sound quality, comfort, and durability, they are well-suited for producers, musicians, and engineers looking for precise audio reproduction. These headphones not only meet the demands of professional environments but also provide an enjoyable listening experience for anyone who values high-fidelity sound. Whether choosing the KNS6400 for its solid performance or the KNS8400 for its extended range, users can trust KRK to deliver exceptional monitoring solutions.