button to confirm that the
2. Place the auto switch

COMPLETED TAPE AFTER RECORDING PROCEDURE

RECORDIN G

REC

REC

REC

REC

REC

REC

REC

REC

REC

REC REC

STOP

OPERATIO N

SPACE

RUN

SPACE

RUN

SPACE

RUN

SPACE

RUN

SPACE SPACE SPACE

 

BUTTO N

 

 

 

 

 

 

 

 

 

 

 

TAPE

 

MESSAGE #1

MESSAGE #2

 

 

LAST MESSAGE

 

 

HEA D

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

UNRECORDED

 

 

 

 

 

 

 

 

 

 

SOUND SECTION

 

 

 

 

 

 

 

 

 

 

 

AUT O

 

AUT O

 

AUT O

 

AUT O

 

 

 

PLAY BACK

STOP

PLAY BACK

STOP

 

STOP

PLAY BACK

STOP

 

AUTOMATIC

 

 

 

 

ACTIVATIO N BY TIMER

 

 

 

 

 

PLAYBACK

AUTO

 

 

 

 

 

 

AUTO

 

STOP

 

 

 

 

 

 

 

 

STOP

AUTOMATIC REWINDING

CONFIRMATION OF RECORDING

To ensure that the recorded message can be annnounced properly, confirm if

(A)the number appearing on message counter display is in agreement with the indexing number for the announced message. Be sure to always start operation from the beginning of the tape after initial automatic tape rewinding as the number indicated on message counter display does not always correspond to the announced message after Fast Forward or Rewind facility has been used.

(B)the tape motion does not stop during announcement due to a long break made during recording.

(C)the recorded level is adequate enough to override the background music.

(D)the tape is provided with the unrecorded sound section that is sufficient for automatic tape rewinding after all messages have been announced.

1.Switch the power on.

in the manual mode, load the recorded tape and rewind it. (The "1" is indicated on message counter display.)

3.Depress the PLAY button. The tape begins travelling to play message No.1. In this event, confirm that the announcement overrides the background music. The tape motion stops automatically after the announcement of message No.1 is finished and "2" appears on message counter display, restoring the background music.

4.Repeat the procedure of step 3 and check the recording situation as well as Items (A) through (C).

5. After all announcements have been finished, again depress the PLAY

unrecorded sound section continues to travel for longer than 20 seconds.

— 7 —

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TOA Electronics AM-821 instruction manual Confirmation of Recording, Completed Tape After Recording Procedure

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.