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1 About the Photo on Front Cover The photo shows the OMA-9A 6-channel microphone array. The array is used in experiments and studies of acoustic effects. A variety of microphone arrays can be designed and manufactured. Tel: sales@onsoku.co.jp Tel: sales@onsoku.co.jp B00- Printed in Japan.

2 Audio Product Measuring Instruments & Sound Meters Shinjuku, Tokyo

3 Introducing Onsoku Electronic Corp. Onsoku Electronic Corp. was established in April 00 in Tokyo as a unique manufacturer of audio product measuring instruments and sound meters. Although the company is very young, its technology on which it stands is backed by over 0 years experience and an abundance of know-how. We, as a professional engineering group, have made efforts since the birth of the company to develop and sell a wide range of hardware and software for audio sound measurements to serve the customer. Recent advances in digital technology have made leaps in a variety of growing segments. However, there is still an important role for analog technology in microphones as the input of sound and loudspeakers as the output of sound. Measurements of these electro-acoustic transducers demand a combination of electrical and acoustic know-how our speciality. We are committed to doing our best to develop audio product test instruments based on integrated electro-acoustic technology, and supporting our customers. Quality and clear sounds give us comfort and are a must for the quality of life of people. We feel happy as an acoustic measuring instrument maker to take part in pleasant sound reproduction. Onsoku will meet the market needs as soon as possible to serve the growth and prosperity of customers in a timely manner. CONTENTS Audio Product Measuring Instruments s s with polarity checking. Programmable Oscillator Programmable Toneburst Oscillator Audio Oscillators Noise Oscillators Variable Band-noise Oscillator Variable Band-pass Filter Speaker Polarity Checker with tweeter checker. Speaker Polarity Checker Speaker F 0 & Ze Meters True RMS Meter AC Voltmeter Voice Coil Temperature Meter Speaker Input Durability Tester Multi-channel Timer with current limiter Audio Testers Automatic Audio Testers Automatic Audio Testers for measurement.... Condenser Microphone Amplifier Automatic Microphone Tester Artificial Ear channel Microphone Amplifier Filter Sound Pressure Meters , 6 6, Sound Meters (for self-surveillance) Sound Meters

4 Audio Product Measuring Instruments OG- OG- OG- OG-0 with polarity checking

5 OG- with polarity checking OG- with polarity checking OG- Programmable Oscillator OG-6 Programmable Toneburst Oscillator

6 Audio Oscillators OG-8 OG-8A Noise Oscillator OG-0 Noise Oscillator OG- OFV-0 Variable Band-noise Oscillator OFV- Variable Band-pass Filter

7 OPC-88AL Speaker Polarity Checker with tweeter checker OPC-88 Speaker Polarity Checker OST-6 Speaker F 0 & Ze Meter OST-7 Speaker F 0 & Ze Meter OST-8 Speaker F 0 & Ze Meter

8 True RMS Meter OMR-07A AC Voltmeter OMR-07R OMT-0 Voice Coil Temperature Meter OST-06A Speaker Input Durability Tester

9 OST- Multi-channel Timer with current limiter Audio Tester OAT-9 6

10 Audio Tester OAT-9 Audio Tester OAT-9 7

11 OAT-06 Automatic Audio Tester OAT-0 Automatic Audio Tester 8

12 OAT-0 Automatic AudioTester for measurement 9 OAT-60 Automatic AudioTester for measurement

13 OAT-9 Condenser Microphone Amplifier OAT-0 Automatic Microphone Tester 0 Artificial Ear OAE-60

14 OAF-80 8-channel Microphone Amplifier Filter OS- Sound Pressure Meter OS-6 Sound Pressure Meter OS-7 Sound Pressure Meter

15 Sound Meters (for self-surveillance) Sound Meter SM-770 Sound Meter SM-660

16 INDEX Model to Product Name Audio Product Measuring Instruments Model Product Name Page OAE-60 OAF-80 OAT-9 OAT-9 OAT-0 OAT-0 OAT-0 OAT-06 OAT-9 OAT-9 OAT-60 OFV-0 OFV- OG- OG- OG- OG-0 OG- OG- OG- OG-6 OG-8 OG-8A OG-0 OG- OMR-07A OMR-07R OMT-0 OPC-88 OPC-88AL OS- OS-6 OS-7 OST-06A OST- OST-6 OST-7 OST-8 MS-660 MS OAE-60 OAF-80 OAT-9 OAT-9 OAT-0 OAT-0 OAT-0 OAT-06 OAT-9 OAT-9 OAT-60 OFV-0 OFV- OG- OG- OG- OG-0 OG- OG- OG- OG-6 OG-8 OG-8A OG-0 OG- OMR-07A OMR-07R OMT-0 OPC-88 OPC-88AL OS- OS-6 OS-7 OST-06A OST- OST-6 OST-7 OST-8 Artificial Ear ch. Microphone Amplifier Filter.... Audio Tester Audio Tester Automatic Audio Tester Automatic Microphone Tester Automatic Audio Tester for measurement Automatic Audio Tester Audio Tester Condenser Microphone Amplifier.... Automatic Audio Tester for measurement Variable Band-noise Oscillator Variable Band-pass Filter with polarity checking with polarity checking with polarity checking Programmable Oscillator Programmable Toneburst Oscillator.. Audio Oscillator Audio Oscillator Noise Oscillator Noise Oscillator True RMS Meter AC Voltmeter Voice Coil Temperature Meter Speaker Polarity Checker Speaker Polarity Checker with tweeter checker Sound Pressure Meter Sound Pressure Meter Sound Pressure Meter Speaker Input Durability Tester..... Multi-channel Timer with current limiter Speaker F0 & Ze Meter Speaker F0 & Ze Meter Speaker F0 & Ze Meter Sound Meters (for self-surveillance) MS-660 MS-770 Sound Meter Sound Meter

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