AKG Acoustics 820 manual Safety and Environment, Symbols Used Safety Instructions

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1 Safety and Environment

▲The lightning flash with arrowpoint in an equilateral triangle means that there are dangerous voltages present within the unit.

▲The exclamation point in an equilateral triangle on the equipment indicates that it ! is necessary for the user to refer to the User Manual. In the User Manual, this symbol marks instructions that the user must follow to ensure safe operation of

the equipment.

1. Do not spill any liquids on the equipment and do not drop any objects through the ven- tilation slots in the equipment.

2. Use the equipment in dry rooms only. Do not expose the equipment to rain or splash water. Never place objects containing liquids (e.g., vases) on or near the equipment.

3. There are no user-serviceable parts inside the equipment. Do not attempt to service the equipment yourself. Refer all servicing to qualified personnel. Opening the chassis for any reason will void the manufacturer’s warranty.

4. Before connecting the equipment to power, check that the AC mains voltage stated on the power supply included with the equipment is identical to the AC mains voltage avail- able where you will use the equipment. Also check that the power outlet is a standard type with a protective ground connection. Disconnecting the protective ground lead or using non-standard power plugs or non-standard power outlets is illegal.

5. Operate the equipment with the power supply included with the equipment only. Using a different power supply may cause serious damage to the unit.

6. If any solid object or liquid penetrates into the equipment, shut down the sound system immediately. Disconnect the equipment from power immediately and have the equipment checked by AKG service personnel.

7. If you will not use the equipment for a long period of time, disconnect the equipment from power. Please note that the equipment will not be fully isolated from power when you set the power switch to OFF.

8. Disconnect the equipment from power during storms to prevent damage.

9. Make sure to route power supply cords so that they are not likely to be walked on or pinched by items placed upon or against them, paying particular attention to cords at plugs, convenience receptacles, and the point where they exit from the equipment.

10. To avoid hum or interference, route all audio lines, particularly those connected to mi- crophone inputs, away from power lines of any type. If you use cable ducts, be sure to use separate ducts for the audio lines.

11. Make sure to replace the built-in fuse with a standard fuse of the same type and rating only. Using any other type of fuse may cause excessive heating and/or a risk of fire.

12. Do not place the equipment near heat sources such as radiators, heating ducts, or am- plifiers, etc. and do not expose it to direct sunlight, excessive dust, moisture, rain, me- chanical vibrations, or shock.

13. Clean the equipment with a moistened (not wet) cloth only. Be sure to disconnect the equipment from power before cleaning the equipment! Never use caustic or scouring cleaners or cleaning agents containing alcohol or solvents since these may damage the enamel and plastic parts.

14. Use the equipment for the applications described in this manual only. AKG cannot ac- cept any liability for damage resulting from improper handling or misuse.

▲!

1.1 Symbols Used

1.2 Safety Instructions

1. When scrapping the equipment, separate the case, circuit boards, and cables, and dis-

1.3 Environment

pose of all components in accordance with local waste disposal rules.

 

2.The packaging of the equipment is recyclable. Dispose of the packaging in an appropriate container provided by the local waste collection/recycling entity and observe all local legislation relating to waste disposal and recycling.

PERCEPTION 820 TUBE

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Contents Perception 820 Tube Table of Contents Symbols Used Safety Instructions Safety and EnvironmentPacking List DescriptionFront Panel Refer to figRear Panel Description Important Note Power voltage Selector setting Power cordConnecting Remote Control Unit to Power Powering UpSetting Up Tape Using the MicrophoneIntroduction General HintsChoir Backing Vocals Lead VocalsTrumpet, Trombone Violin, Viola Acoustic Guitar Double bassDouble Bass, Cello Aim mic 2 at the instrument from the sideClarinet Point the microphone at the low- est key ClarinetUpright piano Use the same technique as for the grandDrums AC input connector on the Remote Control Unit rear panel CleaningTroubleshooting Cord from the Remote Control Unit before replacing a fuseSolving Problems Microphone SpecificationsFigure Eight Frequency ResponseSommaire Reuses à l’intérieur de l’appareil Sécurité et environnementDistance OptionnelsDistance Face avantVoir fig Face arrièreVoir , Sera prêt à fonctionner Commande à distanceRéglage Cordon secteurPerception 820 Tube Registrés Utilisation du microphoneLe microphone avec très grand soin Tres bruits mécaniquesSoliste vocal Produits avec précision et sans être faussésFérents endroits Phones génériquesChorale/Choristes Violon solo Guitare électriqueGuitare basse Violon, altoVoir ci-dessus la section « Contrebasse » Grands ensembles à cordesContrebasse Violoncelle/varianteDirigez le microphone vers le mi 8 Flûte traversièreClarinette Dirigez le microphone vers la clef la plus basseCymbales Piano à queuePiano droit Piano à queue/ Piano droitAvertissement NettoyageDépannage Du fusibleSolutions aux problèmes Caractéristiques techniques Huit Réponse en fréquencePerception 820 Tube Perception 820 Tube 06/08/9100U12480

820 specifications

The AKG Acoustics 820 is a professional studio headphone that offers a blend of comfort, durability, and exceptional sound quality, making it an ideal choice for both audio engineers and musicians. Renowned for its ability to deliver accurate audio reproduction, the K820 is designed for serious listening, mixing, and recording sessions.

One of the key features of the AKG K820 is its high-performance drivers, which provide a wide frequency response, ranging from deep bass to crisp highs. This high fidelity makes it suitable for various applications, including critical listening in studios or casual listening at home. The headphones feature an open-back design, which enhances the soundstage and provides a more natural and immersive listening experience. This design reduces the feeling of isolation, allowing users to remain aware of their surroundings without compromising audio enjoyment.

Comfort is paramount when it comes to long recording or mixing sessions, and the K820 excels in this aspect. The headphones are equipped with plush ear pads and an adjustable headband that ensures a snug yet comfortable fit. This ergonomic design minimizes fatigue, enabling users to wear them for extended periods without discomfort.

Another significant characteristic is the headphone’s lightweight construction, which contributes to long-term wearability. Despite being lightweight, the K820 is built with robust materials designed to withstand the rigors of professional use. The headphones also come with a detachable cable, which not only enhances portability but also allows for easy replacement in case of damage.

The AKG Acoustics 820 headphones have a nominal impedance that makes them compatible with a wide range of devices, from professional audio interfaces to portable music players. The headphones also feature a high sensitivity rating, ensuring that they can produce loud sound levels without distortion, even when powered by lower-output devices.

In terms of aesthetics, the K820 sports a sleek and modern design, appealing to professionals and casual users alike. The matte finish and streamlined silhouette give an elegant touch, aligning with AKG’s reputation for high-quality audio products.

In summary, the AKG Acoustics 820 headphones combine advanced technologies, high comfort levels, and exceptional sound quality, making them a top choice for anyone serious about audio. Their robust build, ergonomic design, and superior audio performance position them as a reliable tool in any sound professional's arsenal.
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