PRECAUTIONS

1.Avoid setting up unit in the locations exposed to direct sunlight, or heaters or other heat sources, or with high humidity or dust.

2.The cassette tape can last only 200 hours on average. After 200 hours of use, replace the tape with the new one.

3.Do not use the C-120 cassette tape. (You may use other normal tapes.)

USER CARE

1.CLEANING THE HEAD SECTION

If the head, capstan or pinch roller gets dirty or accumulates dust, the deterioration of the sound quality or unstable operation will result. An occasional wiping down with soft cloth damped with alcohol is recommended to keep unit in good shape.

2.DEMAGNETIZING THE HEAD

The recording head becomes magnetized when the recorder is used for prolonged periods of time. This results in noise being generated and the treble dropping off during recording. So, the recording head should be regularly demagnetized with the head eraser.

3.HANDLING CASSETTE TAPES

The AM-821 can accept normal tape only. Do not use chrome or metal tapes to avoid loss of sound

quality.

Do not use the C-120 cassette tape. Since the it is thin and easily damaged, they may stretch during use

causing unstable tape movement which may result in the tape becoming tagled in the rotating parts of

this unit.

Do not use tapes which have been stored in a hot moist place or close to a television or speaker. Such tapes may curl or have greasy places altering tape speed and preventing proper tape performance. Always store in a cool, dry place which is free from dirt, oil and magnetic effects.

Before using a tape, check to confirm if tape slack exists. Because the tape slack causes the tape twist or tangle around the pinch rollers and capstans, take up the slack, if necessary, by inserting a pencil through the reel hub and turning it.

To prevent erasing of recorded sounds, remove the erase-prevention tabs using a screwdriver or similar object to break out the tab (thus preventing recording). To record again, cover the slot with adhesive

tape.

The cassette tape can last only 200 hours on average. After 200 hours of use, replace the tape with the

new one.

4.CLEANING THE FRONT PANEL

Use a soft cloth to wipe off dust and grease of the front panel and cassette receptacle covers. When they are very dirty, damp the soft cloth slightly with neutral cleanser, remove the dirt and wipe with a dry cloth. Never use volatile spirits like thinners, benzines or alcohol because they will damage the panel's finish.

5.Avoid setting up the recorder in the locations exposed to direct sunlight, or near heaters or other heat sources, or in areas of high humidity or dust.

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TOA Electronics AM-821 instruction manual Precautions, User Care, Handling Cassette Tapes, Cleaning the Front Panel
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AM-821 specifications

The TOA Electronics AM-821 is a state-of-the-art digital amplifier that has gained recognition in the audio industry for its exceptional performance and innovative features. Designed for various professional applications, the AM-821 is particularly suited for public address systems, commercial sound reinforcement, and various installations in schools, auditoriums, and venues requiring high-quality audio.

One of the standout features of the AM-821 is its robust power output. With a maximum output of 120 watts per channel at 4 ohms, it ensures reliable sound distribution in larger spaces without distortion. The amplifier is engineered to handle a wide range of audio signals, making it versatile for different sound sources. It is equipped with a built-in mixer that allows for control of microphones and other audio inputs, making it ideal for live events or permanent installations.

The AM-821 incorporates advanced technologies such as digital signal processing (DSP) which enhances sound quality and provides precise control over audio characteristics. This technology allows users to adjust equalization settings, loudness, and delay, ensuring crystal-clear sound that adapts to the environment. In addition, the amplifier features a low-noise cooling system that enhances its efficiency, prolonging the lifespan of the equipment while remaining quiet during operation.

Another essential characteristic of the AM-821 is its user-friendly interface. It includes intuitive controls and LED indicators that facilitate easy operation and monitoring of performance. The amplifier offers multiple input options, including XLR, RCA, and 1/4-inch jacks, providing flexibility for various audio setups. Its compatibility with TOA’s other products creates a cohesive and scalable system for users looking to expand their audio capabilities over time.

The robust build quality and sleek design of the AM-821 make it not only a powerful performer but also an aesthetically pleasing addition to any audio setup. Its compact form factor allows for easy integration into existing systems without occupying excessive space.

In summary, the TOA Electronics AM-821 amplifies modern audio solutions through its powerful output, advanced digital processing technologies, user-friendly interface, and versatile connectivity options. Ideal for professionals seeking quality, reliability, and versality, the AM-821 demonstrates TOA’s commitment to excellence in audio engineering.
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