VocoPro DA2277 manual Listening For a Lifetime, Some common decibel ranges

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Listening For A Lifetime

Selecting fine audio equipment such as the unit you’ve just purchased is only the start of your musical enjoyment. Now it’s time to consider how you can maximize the fun and excitement your equipment offers. VocoPro and the Electronic Industries Association’s Consumer Electronics Group want you to get the most out of your equipment by playing it at a safe level. One that lets the sound come through loud and clear without annoying blaring or distortion and, most importantly, without affecting your sensitive hearing.

Sound can be deceiving. Over time your hearing “comfort level” adapts to a higher volume of sound. So what sounds “normal” can actually be loud and harmful to your hearing. Guard against this by setting your equipment at a safe level BEFORE your hearing adapts.

To establish a safe level:

Start your volume control at a low setting.

Slowly increase the sound until you can hear it comfortably and clearly, and without distortion.

Once you have established a comfortable sound level:

Set the dial and leave it there.

Pay attention to the different levels in various recordings.

Taking a minute to do this now will help to prevent hearing damage or loss in the future. After all, we want you listening for a lifetime.

Used wisely, your new sound equipment will provide a lifetime of fun and enjoyment. Since hearing damage from loud noise is often undetectable until it is too late, this manufacturer and the Electronic Industries Association’s Consumer Electronics Group recommend you avoid prolonged exposure to excessive noise. This list of sound levels is included for your protection.

Some common decibel ranges:

Level Example

30￿ Quiet library, Soft whispers

40￿ Living room, Refrigerator, Bedroom away from traffic

50￿ Light traffic, Normal Conversation

60￿ Air Conditioner at 20 ft., Sewing machine

70￿ Vacuum cleaner, Hair dryer, Noisy Restaurant

80Average city traffic, Garbage disposals, Alarm clock at 2 ft.

The following noises can be dangerous under constant exposure:

Level Example

90￿ Subway, Motorcycle, Truck traffic, Lawn Mower

100￿ Garbage truck, Chainsaw, Pneumatics drill

120￿ Rock band concert in front of speakers

140￿ Gunshot blast, Jet plane

180Rocket launching pad

-Information courtesy of the Deafness Research Foundation

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Contents DA-2277 DA-2277 Safety Instructions Explanation of Graphical SymbolsPage Page Listening For a Lifetime Some common decibel rangesFollowing noises can be dangerous under constant exposure DA-2277 Features SpecificationsBefore Getting Started Things to Consider Protect Against Power SurgesImportant Stand and Base Safety Information Protect Components from OverheatingMicrophone Position Lead & Backup VocalsMicrophone Basics SpeechAvoiding Feedback More Tips to Avoid InterferenceDA-2277 & Stage Monitors/P.A. System Digital KEY Controller Power Front Panel Descriptions and ControlsFront/Top Panel Descriptions and Controls TOP View of DA-2277Rear Panel Descriptions and Controls V4/VCV V2/CDGMicrophone Descriptions and Functions Replacing/Recharging the Microphone Batteries Replacing Microphone BatteriesRecharging Your Microphones Connecting A/V Source Players to the DA-2277 Getting ConnectedConnecting Video to Display Devices System Connection DiagramUnderstanding and Avoiding VHF Interference Recognizing InterferenceAvoiding Basic Problems Frequency Conflicts TV Channel Frequency Data VHF TV ChannelsTroubleshooting Problems Cause SolutionsGlossary of Terms Glossary of Terms CDG-4000 PRO Recommended VocoPro GearVP-600X SV-420